Integrating patch stability and network connectivity to optimize ecological security pattern DOI Creative Commons
Hong Jiang, Jian Peng, Menglin Liu

et al.

Landscape Ecology, Journal Year: 2024, Volume and Issue: 39(3)

Published: Feb. 21, 2024

Abstract Context Designing and optimizing ecological security pattern (ESP) is an effective solution to formulate landscape planning. The commonly used network analysis for ESP optimization abstracts sources corridors as homogeneous nodes edges, ignoring the differentiated patch stability. Objectives It aimed construct considering function, explore relationship of stability connectivity conservation objectives, optimize with integration two objectives. Methods We proposed a framework constructing based on ecosystem health human footprint, robustness analysis. Land use conflict node/ edge removal method were further assess connectivity, respectively. Results Ningxia was composed 71 covering area 10970.25 km 2 , 150 3950.88 . along Yellow River had high but low while largest source both values indicators. With robustness, global efficiency, equivalent decreased from 1, 0.29, 342.80 0, variation trends three indicators under different scenarios inconsistent. There distinct trade-off between objectives connectivity. Conclusions This study highlighted how balance in Our can provide guidance planners without losing information due element abstraction

Language: Английский

Optimization of ecological security patterns considering both natural and social disturbances in China's largest urban agglomeration DOI
Long Li, Xianjin Huang, Dafang Wu

et al.

Ecological Engineering, Journal Year: 2022, Volume and Issue: 180, P. 106647 - 106647

Published: April 13, 2022

Language: Английский

Citations

63
Construction of ecological security pattern of national ecological barriers for ecosystem health maintenance DOI Creative Commons
Chen Li, Yingmei Wu, Binpin Gao

et al.

Ecological Indicators, Journal Year: 2022, Volume and Issue: 146, P. 109801 - 109801

Published: Dec. 16, 2022

The National Ecological Barrier Zones are an important part of China's ecological security strategy. construction a scientific and reasonable pattern (ESP) is for the healthy development national barrier zones. existing literature does not consider impact potential changes in ecosystem health land use on ESP construction. In this study, we considered typical composite area, Sichuan-Yunnan barrier, to analyze such areas; probability future growth change, circuit theory, service trade-off synergy, construct sustainable ESP. Spatial heterogeneity was observed level barrier; high-value areas were mostly distributed central southern parts study but low-value northeastern western regions. contained 246 sources (distributed forest grassland contiguous south, central, northeast regions), 563 corridors that portrayed obvious differences spatial distribution, 123 pinchpoints, 231 barriers, topographic gradient characteristics. Based data, proposed relevant policy opinions zoning control. results show incorporating trade-offs services into assessments can lead more effective selection sources. Meanwhile, constructed by using correct resistance surface truly reflect need under trend. research framework "ecosystem assessment incorporates - theory" could address technical issues constructing compound large regional/national regions key function areas.

Language: Английский

Citations

59
Study of spatialtemporal changes in Chinese forest eco-space and optimization strategies for enhancing carbon sequestration capacity through ecological spatial network theory DOI
Shi Qiu, Minzhe Fang, Qiang Yu

et al.

The Science of The Total Environment, Journal Year: 2022, Volume and Issue: 859, P. 160035 - 160035

Published: Nov. 7, 2022

Language: Английский

Citations

55
A multi-species approach for protected areas ecological network construction based on landscape connectivity DOI Creative Commons
Guofu Liang,

Hanbo Niu,

Yan Li

et al.

Global Ecology and Conservation, Journal Year: 2023, Volume and Issue: 46, P. e02569 - e02569

Published: July 1, 2023

The establishment of ecological networks is crucial for biodiversity conservation, especially at broad spatial scales. It still challenging to develop an network construction method based on landscape connectivity multiple species. purpose this study propose a multi-species framework approach constructing and determine the restoration priority four focal mammal species across protected areas in western mountains Henan Province, China. We built each by using circuit theory least-cost path models, integrated corridors key barrier results showed that was closely related dispersal capacity. For with higher capacity, all core were interconnected have alternative paths, seemed be well connected. With decline ability, became more complex not connected, migration exceed capability emerged. important consider needs species-specific management plans. Key areas, which significant impacts migration, are mainly land use dominated cropland. Our research indicates methods proposed can help may facilitate conservation efforts species, poor distribution movement data.

Language: Английский

Citations

37
Combined use of urban Atlas and Corine land cover datasets for the implementation of an ecological network using graph theory within a multi-species approach DOI Creative Commons
Giovanni Lumia, Salvatore Praticò, Salvatore Di Fazio

et al.

Ecological Indicators, Journal Year: 2023, Volume and Issue: 148, P. 110150 - 110150

Published: March 20, 2023

Ecological sustainability has recently risen to prominence in scientific research and management applications. Approaches measuring ecological connectivity their application optimize network (EN) design are powerful tools against landscape fragmentation biodiversity loss. We focused on building an EN by identifying the most sensitive areas for within Reggio Calabria (Italy) metropolitan area. also proposed a defragmentation scenario improve obtained EN. The CORINE Land Cover Urban Atlas 2018 were used obtain fine-scale representation of study Ten terrestrial mammal species model following multi-species approach. Dispersal distance, patch size, resistance movement identify patches corridors. Vegetational fractional coverage based three years time series Sentinel-2 red-edge normalized difference vegetation index was discriminate with higher naturalness. graph theory metrics test EN’s robustness locations restoration scenario. EN, formed separate components, composed 724 arcs 300 nodes average area 27.04 ha. After hypothesis, only one component, 771 328 26.82 It possible analyze evaluate impact intended enhance connectivity. By comparing several metrics, we highlighted potential land interventions as planning tool future conservation.

Language: Английский

Citations

36
Identifying priority areas for ecological conservation and restoration based on circuit theory and dynamic weighted complex network: A case study of the Sichuan Basin DOI Creative Commons

Cheng Gao,

Hongyi Pan,

Mengchao Wang

et al.

Ecological Indicators, Journal Year: 2023, Volume and Issue: 155, P. 111064 - 111064

Published: Oct. 12, 2023

Regional ecological security is a pressing issue in the context of escalating human-environment conflicts. Ecological networks(ENs), fundamental tool for characterizing ecosystems, have enabled further quantitative analysis at micro level by integrating with complex networks recent years. However, most studies neglect unreliability unweighted and dynamic characteristics ENs. This paper takes Sichuan Basin as research area adopts following methods. Firstly, it integrates landscape ecology ecosystem services to construct ENs using Linkage Mapper. Secondly, introduces cost-weighted distance weight build identifies potential pivot sources key corridors based on topological features weighted 2000, 2010, 2020. Thirdly, applies circuit theory detect pinchpoints barrier points within priority areas conservation restoration. The results show that study are denser northern southern sides, some change direction due variations resistance surfaces morphology. Through networks, 27 25 identified; then, 28 10 restoration these extracted theory. reveals certain correlation between distribution nodes water bodies. Furthermore, comparing network, we find network more reasonable, 64.2% showing lower betweenness centrality than reflecting obstacles urbanization poses networks. explores impact constantly changing overall their components through analysis. evolving reflect feedback external environmental changes, well real Therefore, findings this provide valuable references governance efforts Basin, promoting regional advancement civilization.

Language: Английский

Citations

33
Ecological risk assessment and ecological security pattern optimization in the middle reaches of the Yellow River based on ERI+MCR model DOI

Yang Lian-an,

Yali Li,

Lujing Jia

et al.

Journal of Geographical Sciences, Journal Year: 2023, Volume and Issue: 33(4), P. 823 - 844

Published: April 1, 2023

Language: Английский

Citations

31
Spatial identification and optimization of ecological network in desert-oasis area of Yellow River Basin, China DOI Creative Commons

Huiyuan Guan,

Yongping Bai,

Yuanyuan Tang

et al.

Ecological Indicators, Journal Year: 2023, Volume and Issue: 147, P. 109999 - 109999

Published: Feb. 17, 2023

Scientific layout of ecological network is a basic guarantee for regional environmental protection and restoration given the influence global ecosystem changes, which one important national strategies coordinating economic development in China. We adopt method involving services landscape connectivity to identify source area. Furthermore, also can key elements such as corridors nodes based on minimum cumulative resistance (MCR) model gravity optimize spatial pattern, formulate security control area planning, propose functional areas. The results reveal that (1) high value areas are mainly distributed wetland parks, Ningxia Helan Mountain Nature Reserve, Xiangshan Grassland Park other areas; (2) includes 19 with total 1348.25 km2, 169 length 7098.75 km 46 nodes; (3) improves rationality after optimization, including 6 supplementary an 797.75 45 optimized 1106.00 30 nodes, formation "one belt, four multi-center" model.

Language: Английский

Citations

30
Promoting ecological restoration of deeply urbanized hilly areas: A multi-scale ecological networks approach DOI Creative Commons
Jie Lü, Sheng Jiao, Zongwei Han

et al.

Ecological Indicators, Journal Year: 2023, Volume and Issue: 154, P. 110655 - 110655

Published: July 17, 2023

With the deep expansion of urbanization, contradictions between human beings and natural environment in hilly areas have shown characteristics multi-scale complexity. The traditional construction ecological network rarely focused on relationship elements at different scales, which made it difficult to systematically solve problems. To address gap, this paper proposed a novel framework construct networks based discussion problems space scales. Firstly, one most deeply urbanized area China (Changsha- Zhuzhou- Xiangtan urban agglomeration, CZXUA) was chosen as study area. By constructing evaluation system patches importance (EPI) after conducting Morphological Spatial Pattern Analysis (MSPA), identification method sources optimized Then, spatial principal component analysis (SPCA) used sort out resistance factors surfaces constructed accordingly. Furthermore, from CZXUA central were cooperatively through Least-cost path (LCP), circuit theory, hierarchical transmission scale nesting. Finally, overall security pattern development metropolitan green open area, well applied territorial planning spacial results up for deficiency single-scale neglecting important details local areas, provided feasible restoration plan decision makers practitioners. This can contribute cross-scale ecosystem biodiversity conservation hills.

Language: Английский

Citations

28
Construction and evaluation of ecological networks in highly urbanised regions: A case study of the Guangdong-Hong Kong-Macao greater Bay Area, China DOI Creative Commons

Yongshi Zhou,

Zihao Zheng,

Zhifeng Wu

et al.

Ecological Indicators, Journal Year: 2023, Volume and Issue: 152, P. 110336 - 110336

Published: May 18, 2023

Metropolitan regions usually encounter sustainability difficulties such as overexploitation of resources, severe land scarcity, and ecological degradation, resulting in the progressive collapse networks (ENs). It is therefore essential to strengthen construction protection ENs by integrating various improving quality urban environment creating a favourable living environment. Using Guangdong-Hong Kong-Macao Greater Bay Area case study, this paper, resistance indicator system that balances natural condition human disturbance rebuilt. In doing so, scheme (applicable highly urbanised areas) established simulate at more precise scale. Moreover, local evaluation model proposed spatial patterns multiple indicators are fully summarised. The findings show exhibit apparent disparity. Disturbance through activities seriously affects pattern ENs, leading structural imbalance impairment corridors. Based on our assessment, complementary corridors "two green belts" planning will improve problems. paper can provide reference harmonisation development protection, guiding scientific management spaces regions.

Language: Английский

Citations

26