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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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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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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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Territorial Ecological Restoration with a High-carbon Storage Focus in the Beibu Gulf Urban Agglomeration of China:Insights from Carbon Metabolism Spatial Security Patterns 认领 引用 被引量：2
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作者 QIN Menglin LIU Yuting +5 位作者 TAN Qianxi ZHU Ziming WU Xinyu JIANG Hongbo LI Hang SHI Qianqian 《Chinese Geographical Science》 SCIE CSCD 2025年第1期73-91,共19页
This study focuses on urgent research on restoring and enhancing carbon storage capacity in the Beibu Gulf Urban Agglomer-ation of China,a key area in the‘Belt and Road’Initiative,which aligns with carbon peaking an... This study focuses on urgent research on restoring and enhancing carbon storage capacity in the Beibu Gulf Urban Agglomer-ation of China,a key area in the‘Belt and Road’Initiative,which aligns with carbon peaking and neutrality goals.This research ana-lyzes the spatial characteristics of carbon metabolism from 2000 to 2020 and uses models to identify stable carbon sink areas,positive carbon flow corridors,and carbon sequestration nodes.The goal is to construct a carbon metabolism spatial security pattern(CMSSP)and propose territorial ecological restoration strategies under different development demand scenarios.The results show the following:1)in 2020,the study area’s carbon sink decreased by 8.29×104 t C/yr compared with that in 2010 and by 10.83×104 t C/yr compared with that in 2000.High-carbon sinks were found mainly in mountainous areas,whereas low-carbon sinks are concentrated in urban con-struction land,rural residential areas,and land margins.2)From 2000 to 2020,the spatial security pattern of carbon metabolism tended to be‘high in the middle of the east and west and low in the gulf.’In 2000,2010,and 2020,16 stable carbon sinks were identified.The carbon energy flow density in Guangxi was greater than that in Guangdong and Hainan,with positive carbon flow corridors located primarily in Guangxi and Guangdong.The number of carbon sequestration nodes remained stable at approximately 15,mainly in Guangxi and Hainan.3)Scenario simulations revealed that under the Nature-based mild restoration scenario,the carbon sink rate will reach 611.85×104 t C/yr by 2030 and increase to 612.45×104 t C/yr by 2060,with stable carbon sinks increasing to 18.In the restora-tion scenario based on Anti-globalization,the carbon sink will decrease from 610.24×104 t C/yr in 2030 to 605.19×104 t C/yr in 2060,with the disappearance of some positive carbon flow corridors and stable carbon sinks.Under the Human-based sustainable restoration scenario,the carbon sink area will decrease from 607.00×104 t C/yr in 2030 to 596.39×104 t C/yr in 2060,with carbon sink areas frag-menting and positive carbon flow corridors becoming less dense.4)On the basis of the current and predicted CMSSPs,this study ex-plores spatial ecological restoration strategies for high-carbon storage areas in bay urban agglomerations at four levels:the land control region,urban agglomeration structure system,carbon sink structure and bay structure control region. 展开更多
关键词 carbon metabolism spatial security pattern(CMSSP) territorial ecological restoration carbon sink carbon storage capacity Beibu Gulf Urban Agglomeration,China
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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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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 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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Simulation and planning regulation of rural landscape patterns in suburbs of large cities:Based on the ESP-GMOP-PLUS coupled model 认领 引用
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作者 Bin Xu Tao Xu +3 位作者 Wenbin Nie Chengao Fan Yilun Wu Zhenguo Wang 《Ecological Frontiers》 CSCD 2025年第6期1689-1703,共15页
Under the background of rapid urbanization,suburban rural areas of large cities have become weak links in urban-rural ecological protection and key challenges in spatial governance.Using the rural areas of the Fuchun ... Under the background of rapid urbanization,suburban rural areas of large cities have become weak links in urban-rural ecological protection and key challenges in spatial governance.Using the rural areas of the Fuchun River Basin as a case study,this research applied the ESP-GMOP-PLUS coupled landscape pattern resilience optimization method to simulate the landscape pattern characteristics of the study area for the year 2030.The study coordinated multi-scenario simulation results with the development conditions of various townships within the area to develop customized management and guidance strategies for each township.The results indicate that the coupled simulation mechanism developed in this study can maximize the protection of high-quality ecological spaces from encroachment while meeting economic development needs.The overall effectiveness of different scenarios was ranked as follows:ecological protection priority scenario>balanced development scenario>urban development priority scenario>inertia development scenario.By jointly considering the landscape pattern simulation results and the development conditions of each township,the 68 townships in the study area can be classified into three major categories:ecological protection priority townships(37 townships,accounting for 57.14%of the basin's total area),balanced development townships(19 townships,accounting for 29.10%of the basin's total area),and Urban development priority townships(12 townships,accounting for 15.55%of the basin's total area).This research provides evidence-based planning support for the ecological space of suburban rural areas in large cities. 展开更多
关键词 Urban expansion Multi-scenario simulation Ecological security pattern GMOP-PLUS model Spatial planning
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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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Ecological Planning and Design of Waterfront in Xianghe County from the Perspective of Landscape Security Pattern 认领 引用 被引量：3
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作者 SHU Ping PAN Yunsheng WANG Lijun 《Journal of Landscape Research》 2013年第6期1-4,6,共4页
Waterfront is a precious resource in urban ecological construction,and also a key section for ecological protection,so ecological planning of urban waterfront has far-reaching influence on the whole region.This study ... Waterfront is a precious resource in urban ecological construction,and also a key section for ecological protection,so ecological planning of urban waterfront has far-reaching influence on the whole region.This study explored ecological planning and design of waterfront from the perspective of landscape security pattern,analyzed current waterfront in Xianghe County and construction of landscape security pattern for waterfront,provided a basis for the ecological planning and design of landscape. 展开更多
关键词 Landscape security pattern Waterfront landscape Ecological planning
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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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Identification and classification of ecological restoration areas in the territorial land space of the Qaidam Basin,China 认领 引用
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作者 CHENG Lanhua YANG Xianming +1 位作者 PAN Xumei AN Jingfeng 《Journal of Arid Land》 SCIE CSCD 2025年第10期1402-1424,共23页
Territorial spatial ecological restoration is a crucial prerequisite for optimizing the territorial spatial patterns,enhancing the ecosystem functions,and achieving sustainable development at the regional scale.The Qa... Territorial spatial ecological restoration is a crucial prerequisite for optimizing the territorial spatial patterns,enhancing the ecosystem functions,and achieving sustainable development at the regional scale.The Qaidam Basin,located in the alpine arid region of the Qinghai–Xizang Plateau,China,is experiencing desertification,biodiversity loss,soil erosion,and environmental pollution.Selecting the Qaidam Basin as the study area,we identified 9 ecological sources in the region using the Morphological Spatial Pattern Analysis(MSPA)method and the landscape connectivity assessment,and extracted 10 significant corridors and 26 general corridors using the Minimum Cumulative Resistance(MCR)and Gravity models.Then,we determined 114 ecological"pinch points"and 42 ecological barrier points by employing the Circuit Theory,thereby constructing the ecological security pattern of the area.Further,we evaluated the ecosystem health of the Qaidam Basin during 2003–2023 using the Vitality–Organization–Resilience–Service(VORS)model.Finally,we integrated ecosystem health assessment and ecological security pattern to comprehensively identify the key areas for ecological restoration in the Qaidam Basin.The results revealed that the ecosystem in the basin fluctuated toward a healthier state from 2003 to 2023.The average ecosystem health index(EHI)for the basin decreased from 0.34 in 2003 to 0.28 in 2013,followed by a substantial recovery to 0.36 in 2023.Higher EHI values were found in the northeastern,southeastern,and southwestern fringes and lower values were located in the basin interior and northwestern region.During 2003–2023,the areas that exhibited a decrease in EHI were primarily located in the interior and northwestern regions of the basin,while those that exhibited an increase in EHI were located in the northeastern,southeastern,and southwestern fringes,demonstrating expanded spatial differences.This may be attributed to the fact that once an eco-environment is damaged,the ecological recovery of the vulnerable areas within the eco-environment will be slow and difficult.This study identified four types of ecological restoration areas,including corridor connectivity,artificial restoration,ecological recovery,and ecological enhancement zones,covering a total area of 6034.7 km2,and proposed targeted ecological restoration strategies according to these different categories.Our findings can serve as a valuable reference for optimizing the territorial spatial patterns,enhancing the ecosystem functions,and promoting sustainable development in the Qaidam Basin. 展开更多
关键词 ecological security pattern ecosystem health ecological restoration Morphological Spatial Pattern Analysis(MSPA) Minimum Cumulative Resistance(MCR) Vitality-Organization-Resilience-Service(VORS)model Qaidam Basin
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基于CiteSpace的国内生态安全格局研究热点与前沿分析 认领 引用
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作者 周芳琳 张建平 +1 位作者 汤佳 陈飞平 《乡村科技》 2025年第20期126-130,共5页
生态安全格局是保障区域生态安全、维持生态系统服务和促进可持续发展的关键空间策略,已成为地理学、生态规划及景观生态学等领域备受关注的核心研究议题。该研究以2001—2025年我国区域生态安全格局为研究对象,利用CiteSpace软件对我国... 生态安全格局是保障区域生态安全、维持生态系统服务和促进可持续发展的关键空间策略,已成为地理学、生态规划及景观生态学等领域备受关注的核心研究议题。该研究以2001—2025年我国区域生态安全格局为研究对象,利用CiteSpace软件对我国2001—2025年区域生态安全格局的相关研究成果进行可视化分析。通过关键词共现、聚类分析,发现研究热点集中于“生态廊道”“土地利用”“风景园林”及“空间格局”等主题,研究演进阶段从早期景观格局分析评价逐步转向多尺度耦合和人工智能的系统性格局优化,且跨学科融合与动态适应性规划相关研究存在尚未完善的情况。研究成果可为推动该领域向纵深发展提供理论支持。 展开更多
关键词 生态安全格局 CiteSpace 可视化分析 文献综述 多尺度耦合
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基于生态安全格局的广西北部湾城市群生态保护与修复 认领 引用 被引量：6
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作者 方园园 何彬元 《环境科学》 EI CAS CSCD 北大核心 2026年第6期3836-3852,共17页
科学推进生态保护与修复是城市群构建生态安全优化格局、促进区域生态建设高质量发展的核心任务和重要保障.以广西北部湾城市群为对象,围绕“生态安全格局理论+天空地一体化监测技术”为技术路线,通过监测数据整合校核和形态空间格局分... 科学推进生态保护与修复是城市群构建生态安全优化格局、促进区域生态建设高质量发展的核心任务和重要保障.以广西北部湾城市群为对象,围绕“生态安全格局理论+天空地一体化监测技术”为技术路线,通过监测数据整合校核和形态空间格局分析,借助InVEST模型修正生态源地,进行生态连通度测算和生态阻力面分析,采用电路理论提取生态关键要素,精准识别研究区重点保护和生态修复区域,构建和优化生态安全格局,并在分析生态保护与修复驱动因素基础上提出针对性修复策略.结果表明:(1)研究区景观格局类型总面积为48 207.72 km2,占研究区总面积65.70%,其中核心区面积36 394.50 km2,占研究区总面积49.60%;筛选生态源地共30个,涉及面积2 522.84 km2,一、二、三级源地分别为3、12、15个.(2)提取生态廊道共67条,总长度3 318.37 km;识别生态夹点共138处,涉及面积154.43 km2;识别生态障碍点共144处,涉及面积603.65 km2.(3)将生态源地、一级生态廊道和生态夹点划为重点保护区域,面积共3 619.21 km2;将二级生态廊道、三级生态廊道和生态障碍点划为生态修复区域,面积共1 709.27 km2;将重点保护区域和生态修复区域之外的区域划为生态管控区域,面积共68 050.52 km2.(4)最终构建了广西北部湾城市群“两屏-四区-六核-四廊-多点”的生态安全优化格局.(5)深入分析了研究区生态保护与修复的驱动因素,包括:政策约束、生态需求、经济发展、科技支撑、国际履约与社会协同等.研究结果充分反映了研究区生态保护与建设的实际特征,提出的国土空间生态功能分区管控方案和针对性管控策略为广西北部湾城市群“陆海统筹”生态建设高质量发展提供了科学依据和实践指导. 展开更多
关键词 生态安全格局(ESP) 生态保护与修复 天空地一体化监测 形态空间格局分析 电路理论 广西北部湾城市群
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基于MSPA、电路理论和空间句法的河南省生态安全格局构建 认领 引用 被引量：5
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作者 黄继超 邓晓颖 +1 位作者 齐玉峰 王攀科 《环境科学》 EI CAS CSCD 北大核心 2026年第2期1011-1024,共14页
为构建河南省生态安全格局以支撑区域生态保护与可持续发展,综合运用形态学空间格局分析法、电路理论及空间句法对河南省景观要素进行系统分析.通过确定生态源地、廊道、夹点和障碍点等关键要素,并评估生态网络的形态结构特征,明确需优... 为构建河南省生态安全格局以支撑区域生态保护与可持续发展,综合运用形态学空间格局分析法、电路理论及空间句法对河南省景观要素进行系统分析.通过确定生态源地、廊道、夹点和障碍点等关键要素,并评估生态网络的形态结构特征,明确需优先修复的关键性空间.结果表明:①河南省景观类型总面积达32066 km2,占研究区面积的19.20%,其中核心区面积为23095 km2,占比为13.83%;当面积阈值≥3 km2时,共识别出380个生态源地,生态源地面积占研究区总面积的12.96%,主要集中于西部、中部和南部地区.②基于电路理论提取出1139条生态廊道,总长度达18206.68 km,其中包括重要廊道504条、次重要廊道403条和一般廊道232条,同时识别出316处生态夹点(分布于廊道与源地交界处)和290处生态障碍点(沿廊道分布).③建议优先修复北部及东部的109处生态障碍点,修复面积总计1387.19 km2.④最终构建了“一带、二纵、三屏、四廊、多点”的生态安全格局.该格局及其关键要素充分反映了河南省生态系统的实际特征,提出的修复策略为区域生态保护与可持续发展提供了科学依据和实践指导. 展开更多
关键词 生态安全格局 形态学空间格局分析法(MSPA) 电路理论 空间句法 修复策略
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基于空间冲突调控的生态安全格局构建与优化:以西安都市圈为例 认领 引用 被引量：1
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作者 池葆春 杨力 +2 位作者 郝海钊 朱宗斌 姚龙杰 《环境科学》 EI CAS CSCD 北大核心 2026年第6期3825-3835,共11页
在都市圈空间结构失衡与冲突矛盾频发的背景下,构建兼顾生态价值与空间冲突适应性的生态安全格局,对于推动都市圈协调发展具有重要意义.现有生态安全格局构建方法多聚焦于生态结构连通性与功能重要性评估,较少考虑空间冲突强度等现实制... 在都市圈空间结构失衡与冲突矛盾频发的背景下,构建兼顾生态价值与空间冲突适应性的生态安全格局,对于推动都市圈协调发展具有重要意义.现有生态安全格局构建方法多聚焦于生态结构连通性与功能重要性评估,较少考虑空间冲突强度等现实制约因素,导致部分构建结果在实际落地过程中易与高冲突区域重叠,制约其在国土空间规划中的适用性与实施效果.为此,以西安都市圈为例,引入空间冲突强度作为调控因子,优化生态源地识别过程,构建冲突调控型生态安全格局,并基于图论方法,从源地鲁棒性与网络连通性等维度对比评估其与主流结构型、功能型和整合型格局的性能差异.结果表明,冲突调控型生态安全格局中识别源地228个,总面积为3 240.34 km2,识别廊道594条,总长度约为3 814.71 km;与结构型、功能型和整合型生态安全格局对比,冲突调控型格局在源地冲突鲁棒性(0.491 8)、网络闭合度(α=0.286 3)、线点速率(β=0.571 2)和成本比系数(c=0.991 9)等方面表现最佳.研究表明空间冲突因子的引入提升了生态安全格局的现实适应性与实施可行性,可为多目标约束下都市圈生态空间优化提供理论支撑与方法路径. 展开更多
关键词 空间冲突 冲突调控 生态安全格局(ESPs) 西安都市圈 国土空间生态修复 生态源地优化
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长江上游岸线(重庆段)生态修复分区及诊断 认领 引用 被引量：3
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作者 鄂施璇 黄丹妮 +1 位作者 王兆林 高梦颖 《环境科学》 EI CAS CSCD 北大核心 2026年第6期3879-3891,共13页
探讨长江上游岸线(重庆段)生态修复分区及诊断,为区域国土空间生态修复提供科学依据.采用“敏感-恢复-阻力”(SRP)模型对2010~2023年的长江上游岸线(重庆段)进行生态脆弱性评价,运用形态空间格局分析(MSPA)、最小累积阻力模型(MCR)和电... 探讨长江上游岸线(重庆段)生态修复分区及诊断,为区域国土空间生态修复提供科学依据.采用“敏感-恢复-阻力”(SRP)模型对2010~2023年的长江上游岸线(重庆段)进行生态脆弱性评价,运用形态空间格局分析(MSPA)、最小累积阻力模型(MCR)和电路理论等方法构建生态安全格局,基于生态脆弱性评价和生态安全格局构建进行生态修复分区,并提出诊断策略.结果表明:(1)2010~2023年,生态脆弱性指数整体呈上升趋势,中度及以上生态脆弱区占95.86%,高度、重度脆弱区多集中在重庆市主城区和各区县的中心城区所在岸线.(2)研究区共识别17处生态源地,面积达155.10 km2;25条生态廊道,总长度达438.46 km;12处生态夹点,集中分布在重庆市主城区所处岸线;39处生态障碍点,多分布在云阳至奉节段.(3)生态修复分区可分为重点保护区、自主保护区、重点修复区和生态整治区这4类,并针对不同分区提出诊断策略,可为长江上游生态系统保护与修复提供参考. 展开更多
关键词 生态修复分区 生态脆弱性 生态安全格局 电路理论 长江上游岸线
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