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Incorporating multiple scenarios and landscape ecological risk to optimize ecological security patterns: A Wei River Basin case study 认领 引用
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作者 Xueting Wu Jinghu Pan 《Chinese Journal of Population,Resources and Environment》 CSCD 2026年第1期94-109,共16页
Under the influence of human activities,landscape fragmentation in the Wei River Basin(WRB)has become increasingly severe.Upstream development has intensified soil erosion,and industrial and agricultural pollution in ... Under the influence of human activities,landscape fragmentation in the Wei River Basin(WRB)has become increasingly severe.Upstream development has intensified soil erosion,and industrial and agricultural pollution in the middle reaches has degraded water quality.Rapid urbanization has further caused habitat fragmentation and biodiversity loss.Collectively,these challenges threaten human well-being and hinder sustainable development,making the construction and optimization of an ecological security pattern(ESP)urgently necessary.However,existing studies often fail to systematically integrate future landscape ecological risk(LER)assessment with ESP optimization.This study evaluated regional LER using the“ecological patches-ecological resistance surface(ERS)-ecological corridor”framework,combined with land-use predictions under three development scenarios,and optimized the ESP by adjusting the ERS and extracting ecological corridors.The results indicate that the LER in the WRB follows an“inverted N”distribution,with low-risk areas concentrated in forested mountain regions and high-risk areas mainly in cultivated land subject to intensive human activity.Across future scenarios,ESPs showed fewer ecological breakpoints and improved landscape connectivity than the 2020 baseline.Scenario-based differences emerged in the spatial configuration of ERS adjustments,with the ecological protection scenario yielding the lowest LER and most favorable ESP.This study demonstrates the deep integration of multi-scenario simulation with LER assessment,providing a new framework for ESP optimization.The findings have guiding significance for ecological protection and coordinated development in the WRB and offer a novel paradigm for sustainable development in ecologically fragile basins worldwide. 展开更多
关键词 Ecological security pattern Multiple scenarios Landscape ecological risk Ecological security pattern optimization
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Anthropogenic activities amplify spatiotemporal variations in regional ecological security patterns dominated by natural factors:Evidence from the West Liaohe River Basin,China 认领 引用
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作者 LYU Xin LI Xiaobing +2 位作者 WANG Kai CAO Wanyu ZHANG Chenhao 《Journal of Arid Land》 SCIE CAS CSCD 2026年第5期752-773,共22页
Ecological security patterns(ESPs)represent an effective way to maintain regional ecological security and promote regional sustainable development.This study investigated the spatiotemporal variations of ESPs in the W... Ecological security patterns(ESPs)represent an effective way to maintain regional ecological security and promote regional sustainable development.This study investigated the spatiotemporal variations of ESPs in the West Liaohe River Basin(WLRB),China during 2000–2020 on the basis of five key ecosystem services(net primary production,soil conservation,habitat quality,water retention,and soil loss by wind).On the basis of the Geodetector model,we initially measured the explanatory rates of various natural and anthropogenic factors on the spatial differentiation of ecological sources and ecological corridors.The Geographically and Temporally Weighted Regression(GTWR)model was subsequently used to elucidate the driving mechanism of ESPs at the interannual scale.During 2000–2020,a"fan-shaped"ESP of"two zones,three belts,and many branches"formed in the WLRB.Natural factors dominated the spatial distribution of ESPs,and the average spatial explanation rate for ecological sources and ecological corridors was 23.86%,which was higher than that of anthropogenic activities(13.29%).However,anthropogenic activities amplified the spatiotemporal variations in ESPs.On this basis,this study proposed an ecological security protection and regulation strategy from three aspects,namely,regional priority,suitability analysis,and risk regulation,which might provide a working direction for regional practical management.This study extends the paradigm of ESP research and offers an important theoretical basis for regional ecological security,from"passive management"to"active management". 展开更多
关键词 ecological security patterns(ESPs) ecosystem services anthropogenic activities Geodetector Geographically and Temporally Weighted Regression(GTWR)model West Liaohe River Basin
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Optimization of ecological security pattern in arid regions through trade-offs and synergies of ecosystem services supply and demand 认领 引用
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作者 LI Xuehong JIN Xin +2 位作者 YANG Haijiang TEK Maraseni JIN Yanxiang 《Journal of Geographical Sciences》 SCIE CSCD 2026年第7期1771-1797,共27页
Establishing a scientifically sound ecological security pattern(ESP)is essential for maintaining ecological security in arid regions.Although notable progress has been made in the construction of ESP,studies that syst... Establishing a scientifically sound ecological security pattern(ESP)is essential for maintaining ecological security in arid regions.Although notable progress has been made in the construction of ESP,studies that systematically integrate the trade-offs and synergies between ecosystem services(ESs)supply and demand into the ESP optimization process is still lacking.In arid regions,regional demands for water yield and carbon storage form the core of ecological security,directly influencing ecosystem stability.Thus,we enhanced the evaluation of water yield and carbon storage demands and proposed a novel ESP optimization framework that explicitly incorporates ESs supply-demand trade-offs and synergies.Ecological sources were identified based on both ESs supply and supply-demand trade-offs.Resistance surfaces were optimized using multidimensional factors,and ecological corridors and pinch points were delineated with circuit theory to refine the ESP in the Hexi Corridor.The improved demand evaluation methods for water yield and carbon storage achieved high spatial accuracy.Due to environmental variation and anthropogenic pressures,ESs supply,demand and their interactions showed marked spatial heterogeneity.The ESP optimization framework identified 157 ecological sources,revealed key resistance mechanisms and delineated 196 ecological corridors and 656 pinch points,demonstrating its scientific rigor and spatial validity.An ESP featuring“two belts,three corridors,and four zones”was developed.Targeted optimization strategies were proposed,including source restoration,resistance surface regulation,enhanced corridor connectivity,and multi-scale synergistic restoration.The proposed ESP optimization framework is founded on an intrinsic transmission mechanism linking the regulation of production–living–ecological space demands,the optimization of supply–demand relationships,and the enhancement of ESP.By integrating the restructuring of ESs supply–demand relationships into the ESP optimization process,this framework establishes a targeted optimization pathway for arid regions and promotes a transition in ecological restoration from“passive conservation”to“active regulation”. 展开更多
关键词 ecological security pattern ecosystem services supply-demand trade-offs and synergies circuit theory arid regions
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Construction and optimization of ecological security pattern in karst basin considering lithology and geological disasters 认领 引用 被引量：3
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作者 LU Hongxing ZHAO Yuluan +1 位作者 CHEN Zhengshan LI Yuan 《Journal of Mountain Science》 SCIE CSCD 2025年第3期983-1000,共18页
Ecological security provides the basis of maintaining both a sustainable regional ecosystem and economic development.However,few studies have focused on how the features such as topography and geomorphology,lithologic... Ecological security provides the basis of maintaining both a sustainable regional ecosystem and economic development.However,few studies have focused on how the features such as topography and geomorphology,lithologic stratigraphic assemblages,and geohazard distribution affect the construction of ecological security patterns and the layout of optimization measures.In order to comprehensively reveal the key areas and key objects of ecological restoration in karst basins,this study takes the Beipan River Basin(BRB)as an example,constructs an ecological security pattern(ESP)based on the methods of morphological spatial pattern analysis(MSPA),landscape connectivity analysis and circuit theory,and lays out the optimization measures in combination with the spatial distribution characteristics of topographic and geomorphological differences and lithological stratigraphic combinations.The results show that 151 ecological sources,343 ecological corridors,121 pinch points and 178 barriers constitute the ESP of the BRB.Lithology is closely related to the spatial distribution characteristics of ecological source sites.Level 1 and 2 ecological sources(The ecological sources were categorized into level 1,level 2,and level 3 source from high to low importance.)are concentrated in the Emeishan basalt region of the upstream and the clastic and impure carbonate rock region of the downstream part of the BRB;level 3ecological sources are concentrated in the carbonate rock region of the midstream.Taking into account the outstanding ecological problems in the basin,and based on the characteristics of lithology and geohazard distribution,we propose the optimization scheme of“three axes,three zones and multiple points”for the ESP and the layout of specific measures of the BRB.The results can provide scientific references for maintaining ecological security maintenance in karst ecologically fragile areas. 展开更多
关键词 Beipan River Basin Ecological security pattern Lithology Geohazards Circuit theory Karst mountainous area
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Construction of ecological security patterns and ecological restoration zones in the city of Ningbo,China 认领 引用 被引量：24
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作者 ZHANG Haitao LI Jialin +2 位作者 TIAN Peng PU Ruiliang CAO Luodan 《Journal of Geographical Sciences》 SCIE CSCD 2022年第4期663-681,共19页
Studying an ecological restoration zoning process under the background of ecological security patterns is of great significance to the rapid adjustment and optimization of a landscape pattern.In this study,a remote se... Studying an ecological restoration zoning process under the background of ecological security patterns is of great significance to the rapid adjustment and optimization of a landscape pattern.In this study,a remote sensing ecological index and a morphological spatial pattern analysis method were used to assess the quality of habitats and identify ecological sources in the city of Ningbo;ecological corridors,ecological pinch points,and ecological barrier points were extracted by using a circuit theory to construct ecological security patterns and ecological restoration zones.The results indicate:(1)There were 47 ecological sources,and 83 key ecological corridors in Ningbo,and the ecological land area was about 1898.39 km2,accounting for 19.89%of the total study area.(2)The ecological source areas were distributed in“one patch and three belts”,and the low-resistance ecological corridors were concentrated in southern Yuyao city,western Haishu district,and central and western Fenghua district;the ecological network in the western and southern regions was dense.(3)There were four types of ecological restoration zones that need to be established,which were prioritized restoration zones,prioritized protection zones,key conservation zones,and general conservation zones distributed hierarchically from inner part towards outside.(4)Ninghai county,Yuyao city,and Fenghua district had large ecological land areas,however,prioritized restoration and protection zones in Ninghai and Fenghua were also large.The analysis results are expected to provide a reference for optimizing a territorial ecological space in a city. 展开更多
关键词 remote sensing ecological index ecological security patterns circuit theory ecological restoration zones Ningbo City
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Optimization of Rural Settlement Distributions Based On the Ecological Security Pattern: A Case Study of Da’an City in Jilin Province of China 认领 引用 被引量：11
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作者 YIN Jingbo LI Hong +1 位作者 WANG Dongyan LIU Shuhan 《Chinese Geographical Science》 SCIE CSCD 2020年第5期824-838,共15页
Following the trends of Chinese rural transformation development, and the sustainable development goals for resources and environment, reasonable arranging the potential development space and the ecological space, so ... Following the trends of Chinese rural transformation development, and the sustainable development goals for resources and environment, reasonable arranging the potential development space and the ecological space, so as to optimize the distributions of rural settlement would be the key challenge for rural areas in ecologically fragile regions. From the perspective of maintaining regional ecological security, this paper takes Da’an City, a typical ecological fragile region in Jilin Province, as the case area, constructing the comprehensive ecological security pattern(ESP) on basis of landscape ecology, and applying the landscape pattern indexes to quantitative analysis the spatial distribution characteristics of rural settlements. Then, different optimization directions and management strategies are put forward for rural settlements in each secure zone under the comprehensive ESP. The experimental results showed that 1) the area of the low security zone, the general security zone, the moderate security zone and the extreme security zone was 1570.18 km^2, 1463.36 km^2, 1215.80 km^2 and 629.77 km^2, representing 32.18%, 29.99%, 24.92% and 12.91% of the total area of the target area, respectively. 2) The rural settlements in Da’an City were characterized by a high degree of fragmentation with a large number of small-scale patches. 3) The area of rural settlements in the ecological relocation zone, the in situ remediation zone, the limited development zone and the key development zone was 22.80 km^2, 42.31 km^2, 36.28 km^2 and 19.40 km^2, accounting for 18.88%, 35.03%, 30.04% and 16.06% of the total area of rural settlements, respectively. Then, different measures were proposed for settlements in different optimization zones in order to scientifically plan important ecological space, production space and living space in rural areas. This paper aims to provide fundamental support for rural settlements based on redistribution from the perspective of landscape ecology and provide insights for rural planning and rural habitat environmental improvement. 展开更多
关键词 ecologically fragile regions ecological security pattern(ESP) rural settlements Da’an City
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Construction of ecological network in Daihai Basin based on ecological security pattern and ecological service accessibility 认领 引用 被引量：4
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作者 Xin Liu Yu Han +2 位作者 Yonghong Li Lijuan Li Yanxu Liu 《Ecological Frontiers》 2024年第6期1224-1231,共8页
Constructing a regional ecological network considering both ecological security and ecosystem service is crucial for achieving harmonious development between human and nature at landscape scale.Drawing on the foundati... Constructing a regional ecological network considering both ecological security and ecosystem service is crucial for achieving harmonious development between human and nature at landscape scale.Drawing on the foundational theory of“source-resistance-corridor”,we established ecological security patterns in the Daihai Basin,taking into account ecosystem service partitioning and supply-demand relationships.The findings showed the area with mismatches between ecosystem service supply and demand(high-low or low-high)was larger than the area where supply matches demand(high-high or low-low).A total of 20 travel corridors and 15 ecological protection corridors were identified,spanning 294.61 km and 174.20 km,respectively.A network optimization layout of“four belts,four nodes,and five clusters”was proposed in the Daihai Basin.This ecological network enhances human accessibility to ecosystem services and ensuring ecological security at the same time,so that is able to promote the harmonious coexistence of human and nature at landscape scale. 展开更多
关键词 Ecosystem service zoning Supply-demand relationship Travel corridor Resistance surface Ecological security pattern
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Ecological risk assessment and ecological security pattern optimization in the middle reaches of the Yellow River based on ERI+MCR model 认领 引用 被引量：14
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作者 YANG Lian'an LI Yali +2 位作者 JIA Lujing JI Yongfan HU Guigui 《Journal of Geographical Sciences》 SCIE CSCD 2023年第4期823-844,共22页
The middle reaches of the Yellow River represent an important area for the protection and development of the Yellow River Basin.Most of the area of the river basin is within the Loess Plateau,which establishes it as a... The middle reaches of the Yellow River represent an important area for the protection and development of the Yellow River Basin.Most of the area of the river basin is within the Loess Plateau,which establishes it as a fragile ecological environment.Firstly,using high-resolution data of land use in the watershed from the past 30 years,landscape ecological risk(LER)sample units are defined and an ecological risk index(ERI)model is constructed.Kriging interpolation is used to display the LER spatial patterns,and the temporal and spatial evolution of risk is examined.Secondly,the spatial evolution of land use landscape change(LULC)is analyzed,and the correlation between land use landscape and ecological risk is discussed.Finally,Based on the LER model,a risk-based minimum cumulative resistance(MCR)model is established,and a comprehensive protection and management network system for the ecological source-corridor-node system designed.The results suggest that in the past 30 years,LER has a high spatial correlation and areas with extremely high ecological risks are concentrated in northwest and southeast areas of the region,of which the northwest area accounts for the highest proportion.Risk intensity is closely related to the spatial pattern of land use landscape.ERI values of forestland,grasslands,and unused land and farmland are low,medium,and high,respectively.The trend of risk evolution is“overall improvement and partial deterioration”.Man-made construction and exploitation is the most direct reason for the increase of local ecological risks.The high ecological-risk areas in the northwest are dominated by deserts which reduce excessive interference by human activities on the natural landscape.Recommendations are:high-quality farmland should be protected;forestland should be restored and rebuilt;repair and adjust the existing ecosystem to assist in landscape regeneration and reconstruction;utilize the overall planning vision of“mountain,water,forest,field,lake,grass,sand”to design a management project at the basin scale;adhere to problem-oriented and precise policy implementation. 展开更多
关键词 landscape ecological risk MCR model ecological security pattern middle reaches of the Yellow River
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Impacts of multi-scenario land use change on ecosystem services and ecological security pattern: A case study of the Yellow River Delta 认领 引用 被引量：8
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作者 XueHua Cen Hua Zhang 《Research in Cold and Arid Regions》 CSCD 2024年第1期30-44,共15页
The Yellow River Delta(YRD), a critical economic zone along China's eastern coast, also functions as a vital ecological reserve in the lower Yellow River. Amidst rapid industrialization and urbanization, the regio... The Yellow River Delta(YRD), a critical economic zone along China's eastern coast, also functions as a vital ecological reserve in the lower Yellow River. Amidst rapid industrialization and urbanization, the region has witnessed significant land use/cover changes(LUCC), impacting ecosystem services(ES) and ecological security patterns(ESP). Investigating LUCC's effects on ES and ESP in the YRD is crucial for ecological security and sustainable development. This study utilized the PLUS model to simulate 2030 land use scenarios, including natural development(NDS), economic development(EDS), and ecological protection scenarios(EPS). Subsequently, the InVEST model and circuit theory were applied to assess ES and ESP under varying LUCC scenarios from 2010 to 2030. Findings indicate:(1) Notable LUCC from 2010 to 2030, marked by decreasing cropland and increasing construction land and water bodies.(2) From 2010 to 2020, improvements were observed in carbon storage,water yield, soil retention, and habitat quality, whereas 2020–2030 saw increases in water yield and soil retention but declines in habitat quality and carbon storage. Among the scenarios, EPS showed superior performance in all four ES.(3) Between 2010 and 2030, ecological sources, corridors, and pinchpoints expanded, displaying significant spatial heterogeneity. The EPS scenario yielded the most substantial increases in ecological sources,corridors, and pinchpoints, totaling 582.89 km2, 645.03 km2,and 64.43 km2, respectively. This study highlights the importance of EPS, offering insightful scientific guidance for the YRD's sustainable development. 展开更多
关键词 Land use change Multi-scenario simulation Ecosystem services Ecological security pattern The Yellow River Delta Circuit theory
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Strategies and Paths for Constructing Rural Landscape Ecological Security Pattern in the Context of Rural Revitalization 认领 引用
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作者 SHEN Kejian ZHANG Hong +1 位作者 CHEN Binqing LI Guoqing 《Journal of Landscape Research》 2024年第5期50-55,共6页
It is one of the fundamental research contents of rural revitalization by constructing a ecological security pattern of rural landscape,providing important basis for scientifically formulating rural spatial planning a... It is one of the fundamental research contents of rural revitalization by constructing a ecological security pattern of rural landscape,providing important basis for scientifically formulating rural spatial planning and sustainable rural development.The research on ecological security patterns of landscape at home and abroad is mainly focused on urban areas.In the context of rural revitalization,the research on strategies and paths for constructing the ecological security pattern of rural landscapes aims to provide important references for the overall planning and design of rural areas and the optimization of rural resource allocation.Using 3S(GPS,RS,GIS)technology methods,this paper systematically analyzes and elaborates on the construction strategies and paths of rural water ecological security pattern,rural biological protection security pattern,rural geological disaster security pattern,and local cultural landscape security pattern.Through the comprehensive superposition of the patterns,a comprehensive ecological security pattern of rural landscape is finally constructed.In the process of constructing and improving the ecological security pattern of rural landscape,emphasis is placed on top-level design,long-term planning,multi-party participation,mechanism improvement,technological innovation,and the strategy of“integrating knowledge with action”. 展开更多
关键词 Rural revitalization Landscape ecological security pattern Rural planning Path research
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Identifying Priority Areas for Ecological Protection and Restoration by Constructing a Water Ecological Security Pattern 认领 引用
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作者 Mengwen Gao Yecui Hu +2 位作者 Shuai Niu Yuping Bai Jie Wang 《Ecosystem Health and Sustainability》 SCIE CSCD 2025年第1期127-140,共14页
Accurately identifying priority areas for the protection and restoration of water ecosystems is essential for refined management of national land space.The water ecological security pattern(WESP)integrates multiple ec... Accurately identifying priority areas for the protection and restoration of water ecosystems is essential for refined management of national land space.The water ecological security pattern(WESP)integrates multiple ecological elements and serves as an effective approach for prioritizing conservation and restoration efforts.Taking Guangxi Hechi,a typical karst region in China,as the study area,we quantitatively evaluated different types of water ecological sources based on a“function–structure–resilience”framework.Then,we used circuit theory and surface runoff model to extract flood corridors and life corridors,further identifying priority areas for protection and restoration.The results showed that the WESP included 17 ecological sources(7,344.59 km2)in the form of strips and patches,as well as 24 flood corridors(769.30 km2)and 3 life corridors(5,138.02 km2).Priority protection areas included habitat important areas in the sources(4,952.96 km2)and 47 pinch points(393.51 km2)in the corridors.Priority restoration areas included ecologically fragile areas in the sources(1,913.19 km2)and barriers in the corridors(219.03 km2).Furthermore,the most urgent areas for water ecosystem management were overlapping patches of priority protection and restoration areas in both sources(478.44 km2)and corridors(45.33 km2).This study proposes a comprehensive framework for constructing a WESP and identifying priority areas within water ecosystems,offering an effective solution for watershed ecological protection and restoration in ecologically fragile areas worldwide. 展开更多
关键词 protection restoration water ecological security pattern quantitatively evaluated different types water ecological sources management national land spacethe priority areas ecological elements water ecological security pattern wesp integrates accurately identifying priority areas
Integrating Ecosystem Service Supply and Demand to Construct Regional Ecological Security Patterns 认领 引用
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作者 Ruyuan Hu Haiping Zhao +4 位作者 Jia Yang Mengmeng Gou Changfu Liu Le Li Wenfa Xiao 《Ecosystem Health and Sustainability》 SCIE CSCD 2025年第6期146-158,共13页
Integrating ecosystem services(ESs)into ecological security patterns(ESPs)provides a comprehensive framework for recognizing critical conservation areas and enhancing regional ecological security.However,previous stud... Integrating ecosystem services(ESs)into ecological security patterns(ESPs)provides a comprehensive framework for recognizing critical conservation areas and enhancing regional ecological security.However,previous studies are predominantly based on ES supply,while often not fully considering the supply–demand balance and its dynamic trends.This study proposed a comprehensive framework including comprehensive supply–demand ratio(CSDR),CSDR trend,total supply trend,and trade-off to revise ecological source recognition.Subsequently,ecological resistance surfaces were revised using land use and nighttime light data.Finally,corridors and strategic nodes were further recognized according to circuit theory to establish a comprehensive ESP.Selecting Three Gorges Reservoir Area as a research case,the results show that the ecological sources(18,232.59 km2)are predominantly situated in the eastern regions and parts of the southern bank of the Yangtze River with high supply and low ecological risks and trade-off levels.The low value of the resistance surfaces is distributed consistently with ecological sources,and the high value of the resistance surfaces is distributed near the cities with high population density and demand.Two hundred sixty-six key ecological corridors and 195 pinch points connected the regions into an organic whole and barrier points,with an area of 285.96 km2 overlapping with the potential corridors.These findings offer guidance for regional planning and sustainable development. 展开更多
关键词 recognizing critical conservation areas supply demand balance ecological security patterns esps provides ecological security patterns comprehensive supply demand ecosystem services revise ecological source recog enhancing regional ecological securityhoweverprevious
Impact of urban expansion on the temporal adaptation and spatial connectivity of ecological security patterns: insights from a rapidly urbanizing metropolitan area 认领 引用 被引量：2
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作者 Sui Liu Yifan Xie +3 位作者 Yanchi Lu Yaolin Liu Zhaomin Tong Yanfang Liu 《Ecological Processes》 SCIE EI CSCD 2025年第4期250-268,共19页
Background In response to the growing ecological crises driven by rapid urbanization,nature-based solutions(NBS)have gained increasing attention,particularly from the perspective of coupled social-ecological systems.U... Background In response to the growing ecological crises driven by rapid urbanization,nature-based solutions(NBS)have gained increasing attention,particularly from the perspective of coupled social-ecological systems.Understanding the dynamic interactions between urban expansion and ecosystems is essential for promoting sustainable development.This study investigated the spatio-temporal effects of urban expansion on ecological security patterns(ESPs)through the lens of land use.By integrating urban growth simulation with ESP analysis,we examined how urban expansion influenced the temporal adaptation and spatial connectivity of ESPs in the rapidly developing Wuhan Metropolitan Area(WMA),China.Results From 2000 to 2020,urban land in the WMA expanded rapidly,characterized by a diffusion pattern dominated by edge-expansion.During this period,the ESPs were characterized by an increase in the area of ecological sources,the extension of ecological corridors,and the expansion of pinchpoint and barrier zones.Urban expansion showed limited direct impact on ecological sources but exerted stronger indirect effects through the displacement of cropland.Although projections indicate that the rate of urban expansion may slow and urban form may tend toward coalescence by 2030 under the natural development scenario(NDS),the threat to high-quality ecological sources remains.Moreover,the direct disruption of ecological corridors is expected to persist and intensify in critical zones,undermining spatial connectivity.Conclusions To mitigate the ecological impacts of urban growth,targeted ecological conservation and restoration strategies should be implemented,particularly through ecological source zoning and landscape classification at pinchpoints and barriers.Promoting compact urban forms and coordinating land use strategies across cities are essential to minimizing ecological trade-offs.This study provided practical insights for harmonizing urban growth with ecological conservation in rapidly urbanizing regions. 展开更多
关键词 Urban expansion Ecological security pattern Temporal adaptation Spatial connectivity Theoretical and policy implication
Delineation of Ecological Restoration Priority Zones in the Guangzhou Metropolitan Area Based on Ecological Risk Assessment and Ecological Security Patterns 认领 引用 被引量：1
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作者 LI Xin TANG Yuanhai +2 位作者 CHEN Jing WANG Zhiyuan WANG Cuihong 《Journal of Resources and Ecology》 CSCD 2025年第5期1387-1402,共16页
Unreasonable land use practices have led to the imbalance of ecosystem functions and a continuous decline in the supply capacity of ecological products.Ecological restoration zoning serves as an effective spatial solu... Unreasonable land use practices have led to the imbalance of ecosystem functions and a continuous decline in the supply capacity of ecological products.Ecological restoration zoning serves as an effective spatial solution.Traditional approaches to delineating ecological restoration zones often rely on a single perspective,such as ecological security or risk assessment,while neglecting the interrelationships between ecological security elements and risk-inducing activities,as well as the adaptive capacity of ecosystems themselves.This study focused on the Guangzhou Metropolitan Area,and integrated multidimensional ecosystem services(water,soil,air,biodiversity,carbon)with circuit theory to construct an ecological security pattern featuring optimal corridor widths.Meanwhile,ecological resilience and the intensity of human disturbances were quantified and overlaid to jointly determine the priority order of ecological restoration zones.The results revealed three key aspects of this system.(1)A total of 55 ecological source patches were identified under this framework,covering a total area of 9062.0 km2.This study detected 130 ecological corridors with a total length of 653.6 km,and they were classified into 18 high-resistance,70 medium-resistance,and 42 low-resistance corridors,primarily distributed in the central region.In addition,eight ecological pinch points were identified as critical nodes for restoration.(2)Ecological resilience in the Guangzhou Metropolitan Area shows a spatial pattern of"high in the east and west,low in the south",although it generally remains at a moderately low level.In contrast,the impact of human disturbances displays a pattern of"high in the central and southern regions,low in the northeast and west",with a moderately high intensity overall.(3)The Guangzhou Metropolitan Area was zoned into five categories:priority restoration areas,key restoration areas,general restoration areas,secondary restoration areas,and routine restoration areas.The total area of the priority restoration zones is 1051.80 km2,and these zones are mainly distributed across districts and counties such as Duanzhou,Gaoyao,Gaoming,Dinghu,Fogang,Conghua,and Zengcheng.By establishing a technical framework of"ecological security pattern-ecological risk assessment-ecological restoration zoning",this study rationally prioritized restoration efforts,thereby providing actionable insights for advancing ecological civilization and guiding ecological conservation management in the Guangdong-Hong Kong-Macao Greater Bay Area. 展开更多
关键词 ecosystem services ecological security pattern circuit theory ecological resilience ecological risk assessment
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Ecosystem Service Value Accounting and Ecological Security Pattern Construction in Hubei Province during 1992-2022 认领 引用 被引量：1
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作者 CHU Yun FANG Shiming TANG Sumin 《Journal of Resources and Ecology》 CSCD 2025年第5期1403-1418,共16页
Accurately assessing the value of ecosystem services and establishing an ecological security pattern to identify the future trends and characteristics of changes in the ecological security pattern and maintain regiona... Accurately assessing the value of ecosystem services and establishing an ecological security pattern to identify the future trends and characteristics of changes in the ecological security pattern and maintain regional ecological security is of great significance for promoting regional sustainability.Based on the calculation of the ecosystem service value in Hubei Province,the study identified the ecological source areas in combination with the types of landscape patterns.It selected the resistance factors that fit the characteristics of the study area in combination with previous studies to establish the ecological resistance surface.The McR model was used to extract the potential ecological corridors in the study area and identify the ecological nodes.Construct the ecological security pattern of Hubei Province from 1992 to 2022 and analyze its spatio-temporal dynamic change characteristics.The research results show that:(1)The value of ecosystem services in Hubei Province has generally shown a fluctuating upward trend from 1992 to 2022.Among the types of ecosystem services,the value of regulatory services accounts for the largest proportion.Among different land use types,the value of ecosystem services provided by forest land types is the highest.(2)A total of 10 ecological sources were extracted in the study.It is mainly distributed in Shennongjia Forestry District,Shiyan City and Enshi City,with a small portion found in the northeastern and southeastern parts of Hubei Province.(3)The 35 potential ecological corridors identified are mainly closed circular structures,presenting a distribution feature of"more in the east and less in the west".(4)Build an ecological security pattern with Jingmen City as the center,connecting Shiyan City,Shennongjia Forestry District,Xianyang City,Huanggang City and Suizhou City.The research put forward optimization suggestions in response to the specific problems existing in the ecological security pattern and the actual ecological conditions of Hubei Province.The research results can provide ideas and methods for the optimization of the ecological security pattern and the high-quality development of the ecosystem in Hubei Province,and at the same time offer reference value for the protection and optimization of ecosystems at other provincial levels. 展开更多
关键词 LUCC ecosystem service value(ESV) ecological security pattern minimum cumulative resistance model(MCR) morphological spatial pattern analysis(MSPA) Hybei Province
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Identification of Urban Ecological Security Pattern Based on Ecosystem Services Supply–Demand 认领 引用 被引量：4
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作者 Huayan Liu Jianhua Zhu +4 位作者 Lixiong Zeng Mengmeng Gou Beiling Chen Jinxia Lv Wenfa Xiao 《Ecosystem Health and Sustainability》 SCIE CSCD 2024年第1期19-32,共14页
The construction of ecological security pattern(ESP)is an effective way to ensure regional ecological security.Although the method of constructing the regional ESP based on ecosystem services(ESs)has been widely recog... The construction of ecological security pattern(ESP)is an effective way to ensure regional ecological security.Although the method of constructing the regional ESP based on ecosystem services(ESs)has been widely recognized and applied,the spatial characteristics of ESs supply–demand mismatch has not been well included into ESP construction. 展开更多
关键词 urban ecology ecological security pattern construction ecological security pattern esp ecosystem services ess ecosystem services supply demand mismatch
Construction of Ecological Security Pattern of Urban Agglomeration Based on Multi-Scale Ecological Corridor Networks 认领 引用 被引量：2
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作者 Qianli Ouyang Bohong Zheng +1 位作者 Xi Luo Shengyan Wu 《Ecosystem Health and Sustainability》 SCIE CSCD 2024年第5期99-115,共17页
The construction of an ecological security pattern(ESP)is an effective approach to addressing ecological concerns in urban agglomerations.However,previous research has often overlooked the ecological characteristics a... The construction of an ecological security pattern(ESP)is an effective approach to addressing ecological concerns in urban agglomerations.However,previous research has often overlooked the ecological characteristics at different spatial scales,making it difficult to effectively tackle environmental issues.This study focuses on the Changsha–Zhuzhou–Xiangtan urban agglomeration(CZXUA)to construct an ESP from 2 scales:the urban agglomeration and the metropolitan area.First,ecological sources at different scales were identified and optimized using morphological spatial pattern analysis,ecosystem service supply assessment,landscape connectivity evaluation,and ecological demand intensity analysis.Next,spatial principal component analysis was employed to analyze resistance factors across different spatial scales,enabling the construction of a multi-scale landscape resistance surface.Finally,multi-scale ecological corridors were extracted using circuit theory,and the ecological corridors passing through the central urban area were optimized.As a result,176 ecological sources,337 ecological corridors,60 ecological pinch points,and 30 ecological barrier points were identified,forming the overall ESP for the CZXUA.Furthermore,an ecological protection and optimization pattern,described as“One River,Seven Waters,One Heart,and Eight Wedges”,was proposed based on the ESP.This pattern highlights pivotal areas for ecological protection and restoration within the national land space.This study provides a comprehensive example of constructing a multi-scale ecological corridor network and identifying critical areas for ecological protection and restoration.The findings can serve as a reference for special ecological protection planning in urban agglomerations. 展开更多
关键词 urban agglomerationshoweverprevious spatial scales multi scale ecological corridor networks ecological security pattern urban agglomeration czxua urban agglomeration ecological characteristics construction ecological security pattern esp
How Can the Balance of Green Infrastructure Supply and Demand Build an Ecological Security Pattern 认领 引用 被引量：4
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作者 Haixia Zhao Binjie Gu +1 位作者 Qianqian Zhang Yijiang Chen 《Ecosystem Health and Sustainability》 SCIE CSCD 2024年第2期86-96,共11页
The escalating degradation of urban eco-environments has underscored the significance of ecological security in sustainable urban development.Green infrastructure bridges green spaces in cities and increases ecosystem... The escalating degradation of urban eco-environments has underscored the significance of ecological security in sustainable urban development.Green infrastructure bridges green spaces in cities and increases ecosystem connectivity,thereby optimizing urban ecological security patterns.This study uses Nanjing as a case study and adopts a research paradigm that involves identifying ecological sources,constructing resistance surfaces,and subsequently extracting corridors within the ecological security pattern.This method amalgamates the evaluation of green infrastructure supply and demand,leading to the identification of both ecological corridors and nodes.The findings reveal that while the supply of green infrastructure in Nanjing is low in the city center and high in the suburbs,demand is high in the central area and low in the periphery,indicating a spatial mismatch between supply and demand.Ecological corridors and nodes are categorized into the core,important,and general levels based on their centrality and areas of supply–demand optimization.The connectivity,supply capacity,and supply–demand relationship of green infrastructure in Nanjing have been enhanced to varying degrees through the ecological security pattern optimization.The results of this study can serve as a decision-making reference for optimizing green infrastructure network patterns and enhancing urban ecological security. 展开更多
关键词 urban eco environment extracting corridors identifying ecological sourcesconstructing resistance surfacesand research paradigm ecological security pattern urban developmentgreen infrastructure ecological security green infrastructure
Ecological security pattern-based simulation for land use structure change:a case study in Ezhou City,China 认领 引用 被引量：2
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作者 Jing YE Zhijie HOU +1 位作者 Haiyan MING Yehuai CHENG 《Frontiers of Earth Science》 SCIE CSCD 2021年第3期526-542,共17页
The ecological environment quality is an important constraint and an optimization objective for land resource allocation.Integrating ecological service value(ESV)accounting and ecological security pattern(ESP)delineat... The ecological environment quality is an important constraint and an optimization objective for land resource allocation.Integrating ecological service value(ESV)accounting and ecological security pattern(ESP)delineation,and combining with the land use structure of 2004/2010/2016 in Ezhou City,this research laid out the urban ESP based on ESV with Net Primary Productivity(NPP),and made it as the main influence factor to simulate land use structure in 2022.The results indicated that:1)The water body has the biggest contribution to ESV,while the construction land has the minimum;2)91 ecological corridors are extracted,of which 28 were important ecological corridors;there were 36 ecological nodes extracted,including 17 important nodes;3)According to ESV,Ezhou City was divided into four security zones.The area of ecological restoration zone was the largest,and human activity core zone area was the smallest;4)In the no ESP protection scenarios and ESP protection scenarios separately,the net increase area of construction land is from 868.5 hm2 to 52.74 hm2 in the ecological core protection area;the construction land in the human activity core area has been increased by 2342.31 hm2 in protected scene,766.23 hm2 more than that of the unprotected scene.The results show that the division of security zones promoted the relocation of construction land from ecological protection core zone to human activity core zone,which can protect the ecological environment effectively,and the ESP-based simulation can provide the decision-making reference to coordinate the relationship of regional land resource allocation and the ecological environment protection. 展开更多
关键词 simulation of land use structure Net Primary Productivity ecological security pattern ecosystem service value Ezhou City
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Using ecosystem service supply and ecosystem sensitivity to identify landscape ecology security patterns in the Lanzhou-Xining urban agglomeration, China 认领 引用 被引量：14
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作者 TONG Hua-li SHI Pei-ji 《Journal of Mountain Science》 SCIE CSCD 2020年第11期2758-2773,共16页
The construction of an ecological security pattern(ESP)is an important way to ensure regional ecological security and to achieve sustainable regional development.It is also one of the hotspot topics of landscape ecolo... The construction of an ecological security pattern(ESP)is an important way to ensure regional ecological security and to achieve sustainable regional development.It is also one of the hotspot topics of landscape ecology research.This paper identifies the ecological source through the evaluation of the ecosystem service and ecosystem sensitivity of the Lanzhou-Xining(Lan-Xi)urban agglomeration.The minimum cumulative resistance(MCR)model modified by night light data NPP/VIIRS(National Polar-orbiting Operational Environmental Satellite System Preparatory Project/Visible Infrared Imaging Radiometer Suite)was used to measure the relative resistance of the materials and energy circulation between the source areas,and to establish the resistance surface of the ecological source area expansion.Then ecological corridors were identified based on ecological sources and resistance surface.The ecological strategic node is the ecological fragile point in the ecological corridors.The ecological strategic node is identified with hydrological module by superimposing the"ridge line"of cumulative ecological resistance with the ecological corridor.Combined with ecological sources,corridors and strategic nodes,the ESP of the Lan-Xi urban agglomeration can be constructed.The ecological source of the Lan-Xi urban agglomeration accounts for 28.42%of the total area,most of which is distributed within Qinghai Province.The nature reserves in the area are all located within the ecological source area.A total of 41 potential ecological corridors have been identified in the study area.The total length of the potential corridors is 1201.03 km,comprising 23 source corridors and 18 radiation corridors.There are 30 strategic nodes identified in the Lan-Xi urban agglomeration.These locations are the most vulnerable areas of the ecological corridors.Ecological engineering should be applied in the construction of corridors.Affected by the ecological source,the potential ecological corridor extends from the northwest to the southeast,which is basically consistent with the direction trend of the mountains in the region. 展开更多
关键词 Ecological security pattern Ecosystem service Ecosystem sensitivity Ecological source Ecological corridor Urban agglomeration
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