Temporal and spatial variation analysis of habitat quality on the PLUS-InVEST model for Ebinur Lake Basin, China

Ecological Indicators, Год журнала: 2022, Номер 145, С. 109632 - 109632

Опубликована: Ноя. 2, 2022

The improvement of habitat quality is great significance to biodiversity conservation. Irrational development activities lead the degradation and loss biodiversity, especially in arid inland areas where ecological environment fragile. In this study, InVEST model used evaluate degree Ebinur Lake Basin from 1990 2020, while PLUS predict land use change under various scenarios. Combined with results zoning planning, spatial distribution inertia (ID) protection (EP) scenarios 2030 were compared analyzed, optimal scenario was selected. following four conclusions are drawn: (1) From cultivated land, grassland, construction significantly increased, forest water bodies, unused decreased. (2) watershed showed an increasing trend followed by a decreasing trend. area proportion high has always exceeded 50 % total level quality. (3) Furthermore, combined human footprint index (HFI), planning for basin conducted. three zones divided into key protected areas, restoration moderate zones, proportions 53.69 %, 29.37 16.93 respectively. (4) By comparing ID EP 2030, we found that increased 2730.06 km2 scenario, which improved overall quality, more conducive security basin. study may benefit analysis temporal variation characteristics provide reference region.

Язык: Английский

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A cold island connectivity and network perspective to mitigate the urban heat island effect

Sustainable Cities and Society, Год журнала: 2023, Номер 94, С. 104525 - 104525

Опубликована: Март 25, 2023

Язык: Английский

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Optimizing the spatial pattern of the cold island to mitigate the urban heat island effect

Ecological Indicators, Год журнала: 2023, Номер 154, С. 110550 - 110550

Опубликована: Июнь 27, 2023

Numerous studies on reducing the urban heat island effect have concentrated isolated cold islands, analyzing their cooling impact in terms of size and shape. From an international perspective, shown that enhancing connectivity islands can enhance but they do not suggest specific processes ideas for connectivity. This study aims to investigate how connect optimize spatial pattern island. Therefore, a framework is constructed this study: source area - network. Firstly, core was identified by morphological analysis. Then, analysis applied identify sources. Afterward, minimum cumulative resistance model used construct In Nanjing, case point, results reveal total 27 areas 52 corridors been identified. 6 first-level CSAs situated northern suburbs Nanjing prevent spread effect. 2 second-level 18 third-level are scattered throughout improve climate. The 29 primary help mitigate transfer from city center. 23 secondary mainly located centers contributing preventing aggregating. be as strategic measure fragmentation isolation island, which provides implications further expansion

Язык: Английский

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A systematic review and comprehensive analysis on ecological restoration of mining areas in the arid region of China: Challenge, capability and reconsideration

Ecological Indicators, Год журнала: 2023, Номер 154, С. 110630 - 110630

Опубликована: Июль 11, 2023

The arid region in China with rich mineral resources are belongs to ecological fragile inadequate recovering capacity. Hundred years of continues mining for economic purposes, leads the problem land degradation caused by spatial coupling large-scale disturbance and environment. environmental problems created have not been addressed promptly, while at same time, new emerged. On basis our 20 practical experience on restoration areas, review synthesis selective literature, interpretation perspective, situation its impacts, factors impeding capability were examined, key challenges promotion strategy presented. main findings this study as follows: Land is most prominent resulting activities, mainly reflected immediate disturbance, long term effects degradation. faced area areas unclear objectives restoration, lack water consumption, unreasonable selection indigenous plants, serious wide area. Our experiments typical proved that micro-topography reconstruction measures can increase surface roughness, redistribute limited precipitation (especially snow), make soil nutrients carried runoff collected valleys regulate infiltration supply, so achieve water-saving non-irrigated vegetation restoration. ideal improvement coverage, available resources, ecosystem services areas. This would be helpful out related implementation could act a valuable reference researchers involved region.

Язык: Английский

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Application of MSPA-MCR models to construct ecological security pattern in the basin: A case study of Dawen River basin

Ecological Indicators, Год журнала: 2024, Номер 160, С. 111887 - 111887

Опубликована: Март 1, 2024

Building an ecological security pattern (ESP) can safeguard and improve the structure, functions services of regional ecosystems. Furthermore, it is also one significant spatial methods to mitigate conflict between conservation economic growth. Most previous researches on construction ESP have directly utilized extensive regions forestland, grassland, water area or nature reserves as sources (ESs) without weighing habitat quality (HQ) protection red line (EPRL). The ES Dawen River basin (DRB) was identified through morphological analysis (MSPA) landscape connectivity index. By employing minimum cumulative resistance model (MCR), potential corridor (EC) identified, its importance evaluated by gravity model. Simultaneously, properties HQ (ER) were analyzed. Finally, this paper proposed optimization strategy for in accordance with EPRL. results indicate that: (1) DRB contained 15 important ESs, mainly concentrated mountain forest areas. (2) 105 ECs extracted MCR model, including 35 level 1 corridors 70 2 corridors, which primarily eastern region basin. (3) Based characteristics ER, well EPRL research, "one axis, two belts five zones" constructed control strategies proposed. This research offers some reference environment restoration sustainable development Yellow

Язык: Английский

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Spatiotemporal dynamics and forecasting of ecological security pattern under the consideration of protecting habitat: a case study of the Poyang Lake ecoregion

International Journal of Digital Earth, Год журнала: 2024, Номер 17(1)

Опубликована: Июль 10, 2024

The continuous expansion and development of anthropogenic activities pose considerable threats to the habitats myriad species. Therefore, exploring how protect optimize species' achieve harmony between humans nature is particularly important. As a paradise for wildlife, Poyang Lake habitat breeding ground birds, fish, other aquatic organisms. In this study, adopting multi-level perspective 'point-line-area', we had an appliance conservation by constructing ecological security pattern (ESP) in Ecoregion (PYLE). We produced land use cover from 2000 2040 using random forest cellular automata-Markov model. Combining morphological spatial analysis, landscape index, Linkage Mapper, constructed long-term ESP PYLE considering protection. spatiotemporal dynamics were compared analyzed. results show that PYLE's rapid economic led extensive urban growth, encroaching on surrounding bare land, which could undermine local survival. Based predicted 2040, propose optimized 'one area, two zones, multiple points' scheme prioritize This comprehensive study provides innovative ideas novel insights future research policy formulation

Язык: Английский

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Prediction of ecological security patterns based on urban expansion: A case study of Chengdu

Ecological Indicators, Год журнала: 2024, Номер 158, С. 111467 - 111467

Опубликована: Янв. 1, 2024

Urbanisation affects the health and stability of ecosystem significantly. Constructing a scientific ecological security pattern (ESP) is paramount importance for safeguarding ecosystems within region, optimising spaces, ensuring sustainability. To investigate effect urbanisation on ESP, we utilised Vigour–Organisation–Resilience-Services (VORS) model to analyse changes in (EH) identify degraded areas city Chengdu. In this case study. We used Patch-generating Land Use Simulation (PLUS) Model predict urban expansion trends 2035 evaluate changing ESP. Additionally, minimum cumulative resistance (MCR) circuit theory construct an network facilitate multilayer planning identified source area approximately 4484.29 km2 recovery zone 1608.35 managing EH degradation source. An conservation 987.48 with restricted development outside source, restoration 71.66 mitigate impact were also identified. Seven stable corridors consistent spatial patterns pressure levels six potential await restoration. Based analysis dynamic ESPs, different scenarios simulated 2035. The findings suggested significant variations ESP around 2010 despite rapid environment was partially restored by increasing land controlling its contraction. Therefore, limiting boundaries expansion, accurately assessing are crucial security.

Язык: Английский

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Ecological network construction for bird communities in high-density urban areas: A perspective of integrated approaches

Ecological Indicators, Год журнала: 2024, Номер 158, С. 111592 - 111592

Опубликована: Янв. 1, 2024

With the rapid pace of global urbanization, conflict between needs human economic development and ecological conservation is becoming increasingly prominent. As an important habitat along migratory routes birds in East Asia, construction network for bird communities Foshan City essential to protect urban biodiversity. In this research, we employs Maximum Entropy Model (MaxEnt) Remote Sensing Ecological Index (RSEI) identify source sites based on migration characteristics requirements, calculated minimum threshold area by using granularity inverse method. Secondly, entropy weight method (EWM) analytical hierarchy process (AHP) are combined establish a comprehensive resistance surface. Finally, circuit theory hydrological analysis principles utilized construct network. The findings reveal following: landscape component structure best at grain size 1400 m, 1.96 km2 identified sources Foshan. A total 19 sources, spanning 636.09 km2, have been identified. These mainly clustered north, south-west east City. terms corridors, research shows existence 51 corridors with length 501.84 km. include 7 first-level 25 s-level potential (including 15 radiating routes). At same time, 88 nodes, including 10 critical nodes 78 general nodes. Lastly, closure index (α), connectivity (β), rate (γ), density (ρ) after optimization grew 0.84, 2.43, 0.89, 0.16, respectively. This study can provide data support optimizing future security pattern diversity

Язык: Английский

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Construction and optimization of regional ecological security patterns based on MSPA-MCR-GA Model: A case study of Dongting Lake Basin in China

Ecological Indicators, Год журнала: 2024, Номер 165, С. 112169 - 112169

Опубликована: Май 25, 2024

Ecological security pattern (ESP) represents a sound spatial arrangement of ecosystem occurring in landscape. The research on the optimization ESP aims to improve and restore functions by rationally allocating optimizing ecological elements based key issues. Constructing can enhance connectivity regional habitat patches, which is great significance for protecting restoring biodiversity, improving stability resilience, achieving sustainable development. However, it challenging task systematically resilience networks under attacks. Little has been done enhancing edge-based Based morphological analysis (MSPA), minimum cumulative resistance (MCR) greedy algorithm (GA) models, this study presents new method construct optimize ESP. Dongting Lake Basin China, typical region with rich complex landscape patterns, intensive human activities, taken as an example. results indicate that network improved its 51.62%, robustness against random attacks 41.13%, targeted 43.41%, relative initial network. Monte Carlo test verifies reliability solution. proposed be used finding structure best specific attacks, provides valuable decision-making reference land planning biodiversity conservation.

Язык: Английский

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Construction of the ecological security pattern of Mu Us sandy land on the basis of the “Source − Resistance − Corridor” theory

Ecological Indicators, Год журнала: 2025, Номер 171, С. 113162 - 113162

Опубликована: Янв. 31, 2025

Язык: Английский

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