Construction of ecological security pattern of national ecological barriers for ecosystem health maintenance

Ecological Indicators, Год журнала: 2022, Номер 146, С. 109801 - 109801

Опубликована: Дек. 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.

Язык: Английский

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Ecological network construction and gradient zoning optimization strategy in urban-rural fringe: A case study of Licheng District, Jinan City, China

Ecological Indicators, Год журнала: 2023, Номер 150, С. 110251 - 110251

Опубликована: Апрель 17, 2023

Ecological network construction and optimization is an effective way to balance the contradiction between regional development ecological protection in process of urbanization. The urban–rural fringe both a frontier zone direction urban expansion important space for improving environment. However, there are few studies on how construct optimize networks fringe. In this paper, morphological spatial pattern analysis (MSPA) minimum cumulative resistance model (MCR) were firstly employed initially reveal characteristics problems security study area. Then, new strategy with multi-scenario coupling gradient zoning was proposed meet maximization integrated benefits future protection. results show that: (1) Urbanization caused high fragmentation patches, exerted strong hindrance processes. (2) distribution constructed extremely uneven, communication north–south severely difficult. optimized significantly improved respect, priority corridors will also help strengthen gradient. (3) connectivity accessibility Licheng District, enhanced its structure, which promote overall cycle better balanced (4) Policy makers should implementation green forest belts achieve This can provide scientific references biodiversity conservation, infrastructure planning, sustainable

Язык: Английский

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Construction of an ecological security pattern in Jiangnan water network area based on an integrated Approach: A case study of Gaochun, Nanjing

Ecological Indicators, Год журнала: 2023, Номер 158, С. 111314 - 111314

Опубликована: Дек. 6, 2023

Rapid urbanization in the Jiangnan Water Network region has resulted degradation of ecosystems and interruption ecological functions. The security pattern (ESP) is crucial for balancing economic development protection within an area. In this study, we focused on a representative Gaochun water network area devised comprehensive ESP methodology. This study combined importance ecosystem services (ESI), landscape connectivity (Con), sensitivity (ESS), starting with analysis sources. Furthermore, both natural human factors are emphasized when constructing resilience surface. Nighttime lighting data (NTL), risk index (ERI), land intensity factor (CI) were used to calibrate resistance values. Finally, circuit theory was applied determine optimal path, width, strategy points corridors. results indicate We identified 39 source areas, 74 corridors, 33 pinch points, 45 barriers. Based this, overall spatial optimization plan “five cores, three patches, belts, multiple points” obtained. aimed explore optimize approach regional characteristics, providing new pathways decision support future construction patterns region.

Язык: Английский

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Constructing ecological security patterns with differentiated management intensity based on multifunctional landscape identification and multi-criteria decision-making

Global Ecology and Conservation, Год журнала: 2024, Номер 50, С. e02862 - e02862

Опубликована: Фев. 22, 2024

The trade-off of ecosystem services should be considered in ecological security pattern (ESP) construction, which can reflected landscape multifunctionality and comprehensive importance. Multi-intensity ESPs management is also required to achieve effective planning. In this study, we proposed an approach multi-intensity construction that integrated multifunctional identification multi-criteria decision-making into source identification, categorized sources based on the "trend-status-risk" framework, with a case study city belt along Yellow River Ningxia. results showed optimal weights four habitat maintenance, water conservation, carbon sequestration soil retention decision making were 0.5000, 0.2071, 0.1589 0.1340, respectively. degree was 0.6612, overall conservation efficiency 1.5212. Conservation priority areas had overlapping area 2189.38 km2, accounting for 84.86% identified through multifunctionality. ESP included 45 covering total 6067.14 km2 91 corridors 3331.62 km2. aiming at prevention, restoration reconstruction established corresponding suggestions. constructing has application potential planning ecologically vulnerable regions, facilitating differentiated management.

Язык: Английский

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Identification of Ecological Sources Using Ecosystem Service Value and Vegetation Productivity Indicators: A Case Study of the Three-River Headwaters Region, Qinghai–Tibetan Plateau, China

Remote Sensing, Год журнала: 2024, Номер 16(7), С. 1258 - 1258

Опубликована: Апрель 2, 2024

As a crucial component of the ecological security pattern, source (ES) plays vital role in providing ecosystem service value (ESV) and conserving biodiversity. Previous studies have mostly considered ES only from either landscape change pattern or function perspectives, ignored their integration spatio-temporal evolutionary modeling. In this study, we proposed multi-perspective framework for characteristics by ESV incorporating aesthetics, carbon sink characteristics, quality, kernel NDVI (kNDVI). By integrating revised normalized difference vegetation index as foundation, employed spatial priority model to identify ES. This improvement aims yield more practical specific result. Applying Three-River Headwaters Region (TRHR), significant sources has been observed 2000 2020. performance provided reference conservation TRHR. The results indicate that identification reliable accuracy efficiency compared with existing NRs method could reveal precise distributions ES, enhancing integrity technical modeling support developing cross-scale planning management strategies nature reserve boundaries. our research serve building networks other ecologically fragile areas.

Язык: Английский

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The Research on the Construction of Traditional Village Heritage Corridors in the Taihu Lake Region Based on the Current Effective Conductance (CEC) Theory

Buildings, Год журнала: 2025, Номер 15(3), С. 472 - 472

Опубликована: Фев. 3, 2025

This study focuses on constructing a heritage corridor for traditional villages in the Taihu Lake region, aiming to promote cultural preservation and sustainable development of these through innovative pathway design. Based spatial distribution characteristics across five cities surrounding (Suzhou, Wuxi, Changzhou, Huzhou, Jiaxing) existing transportation network, this research integrates Circuit Effective Conductance (CEC) theory with ArcGIS analysis methods optimize pathways corridor. The results show that expected nearest neighbor distance 307 region is 5245.61 m, actual being 3385.60 z-score −11.85, index 0.645786, indicating exhibit clustered distribution. Combined kernel density results, “dual-core–four zones–multiple scatter points” structure revealed, Dongshan Island Wujiang District serving as primary secondary cores, respectively. By establishing “dual-ring corridor” stable village transmission has been formed, consisting 137 corridors. Meanwhile, CEC model demonstrates high adaptability generating circular corridors, particularly creating closed-loop structures around lake, thereby enhancing connectivity corridors facilitating effective flow resources. Through strategic design outer inner ring successfully links develops optimal travel routes. provides practical solutions protection, revitalization, integration tourism offers new perspective lakefront geographies China.

Язык: Английский

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Effect of primate protection on threatened and endemic vertebrates, plants, ecosystem services, and future climate refugia

Conservation Biology, Год журнала: 2025, Номер unknown

Опубликована: Март 28, 2025

Abstract Primates, 69% of which are threatened with extinction, the third most specious order mammals. We used primates as model taxa to examine umbrella effects on ecosystem services and protection other vertebrates seed plants in Yunnan Province, China. identified areas conservation priority for 16 primate species determined endemic terrestrial would be protected through a program targeting conservation. Areas high richness were spatially correlated distribution 601 4010 plants. Primate was positively carbon sequestration enhanced water soil coincided future climate refugia. If 30% Yunnan's naturally forested regions designated areas, then 52.3% province's average annual sequestration, 51.7% its resources, 54.1% 30–33% climate‐stable protected. Protecting uniquely contributes maintaining biodiversity that promote stability. Although we focused single mammalian region, our approach evaluation has broad applicability can help achieve multiple targets Kunming–Montreal Global Biodiversity Framework.

Язык: Английский

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National-scale connectivity analysis and construction of forest networks based on graph theory: A case study of China

Ecological Engineering, Год журнала: 2025, Номер 216, С. 107639 - 107639

Опубликована: Апрель 9, 2025

Язык: Английский

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Integrating CVOR and circuit theory models to construct and reconstruct ecological networks: A case study from the Tacheng-Emin Basin, China

Ecological Indicators, Год журнала: 2024, Номер 165, С. 112170 - 112170

Опубликована: Май 26, 2024

The ecological sustainability of arid and semi-arid areas is under increasing threat due to global climate change, well-established networks are essential for improving landscape connectivity conserving biodiversity. This study takes the Tacheng-Emin Basin in China as an example. Based on "source-resistance-corridor" research paradigm sustainable development theory, "contribution-organization-vitality-resilience" circuit theory ecosystem incorporated into construction networks. results show that (1) service value basin 5.85 × 1010 Yuan, medium health level, security hierarchy has low level uncoordinated problems. (2) total integrated resistance surface dominated by natural resistance, characterized evident fragmentation. (3) 25 sources, 58 corridors, 32 stepping stones, 39 obstacle points, 46 fracture points were extracted at threshold 10,000 model. (4) reconstruction cost network 1,007.41 104 reconstructed have increased 2 1 stone, reduced 3 while closure structure been significantly improved developed toward a stable multi-grid structure. (5) zoning protection restoration scheme "one ring, one belt, sink, multiple zones, corridors" conducive basin. this can serve reference management regions Central Asia.

Язык: Английский

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Tourism in Historic Urban Areas: Construction of Cultural Heritage Corridor Based on Minimum Cumulative Resistance and Gravity Model—A Case Study of Tianjin, China

Buildings, Год журнала: 2024, Номер 14(7), С. 2144 - 2144

Опубликована: Июль 12, 2024

The effective protection and utilization of historical cultural heritage in urban rural areas are increasingly gaining public attention. Constructing a continuous complete spatial network is an important means for achieving holistic heritage, it also crucial approach to enhancing the overall connectivity regional culture. How construct corridor great significance comprehensive historic areas. This study takes Tianjin’s as example, uses Minimum Cumulative Resistance (MCR) Gravity Model (GM) corridor, evaluates its suitability. research enriches theory conservation, aims enhance integrity provides new perspective integrated development culture tourism process activation utilization.

Язык: Английский

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