Identification of ecological security patterns of alpine wetland grasslands based on landscape ecological risks: A study in Zoigê County

The Science of The Total Environment, Journal Year: 2024, Volume and Issue: 928, P. 172302 - 172302

Published: April 7, 2024

Language: Английский

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Coupling coordination degree analysis and spatiotemporal heterogeneity between water ecosystem service value and water system in Yellow River Basin cities

Ecological Informatics, Journal Year: 2023, Volume and Issue: 79, P. 102440 - 102440

Published: Dec. 18, 2023

Accelerated urbanization has caused encroachment on urban water ecological land in China's Yellow River basin, resulting a strong disturbance of ecosystem service functions and increasingly serious environmental problems. In this study, two entities—water value (WESV) the system—are identified, to investigate interactions between WESV systems their subsystems six basin cities (Lanzhou, Yinchuan, Hohhot, Xi'an, Zhengzhou, Jinan) from 2005 2020. First, integrated level system each city is calculated using modified developed method equivalence factor per unit area entropy method, respectively. Then, coupling coordination relationship are revealed by degree model (CCDM) Geographically Temporally Weighted Regression (GTWR). The results show that: 1) both basically shows an increasing trend, hydrological regulation function dominates functions, comprehensive evaluation environment generally higher than that other system's subsystems. 2) gradually rose extreme incoordination coordination, (CCD) resources also obvious upward but CCD safety developing more slowly. 3) where have greater positive impacts primarily focused Lanzhou while negative mainly located Yinchuan Zhengzhou. summary, planning decision-making or cities, it critical promote protection ecology high-quality development clearly understanding interaction services system, coordinating balancing systems.

Language: Английский

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Decoupling relationship between urban land use morphology and carbon emissions: Evidence from the Yangtze River Delta Region, China

Ecological Informatics, Journal Year: 2024, Volume and Issue: 81, P. 102614 - 102614

Published: April 27, 2024

Language: Английский

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Unravelling the non-linear response of ecosystem services to urban-rural transformation in the Beijing-Tianjin-Hebei region, China

Ecological Informatics, Journal Year: 2024, Volume and Issue: 81, P. 102633 - 102633

Published: May 9, 2024

In our transforming world, ecosystem services (ESs) and biodiversity are threatened by urban sprawl with rapid urban-rural transformation (URT), jeopardizing human well-being. Understanding the effect of URT on ESs is critical, particularly in areas that have undergone urbanization. Taken Beijing-Tianjin-Hebei (BTH) region China as a typical case, this study measures from population-land-industry perspective elucidates influence each index at different stages. The process experienced decline population growth, an increase land urbanization, stability non-agriculturalization rate. particular, reveals intricate complex non-linear relationship between ESs. negatively affects grain production (GP), habitat quality (HQ), soil retention (SR), carbon sequestration (CS) has positive impact water yield (WY). Furthermore, it was found response threshold to URTIs increased over time, indicating can maintain certain degree resilience face activities. However, ensuring continued increasingly depends implementation effective management protection measures. This advances knowledge dynamics rapidly urbanizing provides valuable insights for policymakers planners guide sustainable development resource management.

Language: Английский

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Ecosystem Service Value Assessment of the Yellow River Delta Based on Satellite Remote Sensing Data

Land, Journal Year: 2024, Volume and Issue: 13(3), P. 276 - 276

Published: Feb. 22, 2024

The Yellow River Delta (YRD) stands as a globally significant wetland, playing pivotal role in sustaining regional ecosystem stability and offering crucial services to humanity. However, anthropogenic activities, particularly resource development, unavoidably disrupt the ecosystem, leading degradation of these vital services. Utilizing satellite remote sensing data, InVEST model, energy analysis, this study introduces concept ‘emergy’ an ‘intermediate variable’ investigate spatiotemporal changes service value YRD. Five distinct types are selected for quantitative assessment analysis YRD’s evolution from 1990 2020. Results indicate 63.7% decline total 2010, followed by 16.5% increase 2010 also unveils spatial shifts high- low-value areas attributes rapid urbanization alterations land use cover. values concretizes intangible functions natural resources. This lays foundation establishing mechanism that combines positive incentives reverse pressure achieve economic valuation service.

Language: Английский

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Integrating fuzzy analytic hierarchy process into ecosystem service-based spatial planning: A case study of the Shenyang metropolitan area, China

Ecological Informatics, Journal Year: 2024, Volume and Issue: 81, P. 102625 - 102625

Published: May 1, 2024

Incorporating ecosystem services (ESs) into spatial planning is crucial for effective environmental management and achieving sustainable development goals. While the Analytic Hierarchy Process (AHP) a commonly employed method multicriteria analysis of ESs, it has faced criticism its limited ability to handle inherent imprecision uncertainties. Consequently, we proposed an assessment framework ESs using Fuzzy (FAHP) implemented in Shenyang Metropolitan Area (SMA), key political economic center Northeast China. We quantified eight types (water yield, food supply, water regulation, carbon storage, waste soil retention, habitat quality, outdoor recreation) within SMA. The FAHP was utilized determine weights these ESs. Subsequently, presented normalized index identify priority conservation areas. Our results indicated that primary areas were mainly located southwest east Benxi City, southeast Fushun Anshan whereas primarily northwest City. Through comparing various ES integration methods, our study underscores effectiveness evaluation. research also highlights challenge managing uncertainties ES-based policy-making emphasizes necessity resilient comprehensive approaches.

Language: Английский

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Spatiotemporal Distribution and Fragmentation Driving Mechanism in Paddy Fields and Dryland of Urban Agglomeration in the Middle Reaches of the Yangtze River

Land, Journal Year: 2024, Volume and Issue: 13(1), P. 58 - 58

Published: Jan. 3, 2024

The spatial-temporal distribution pattern of China’s cultivated land has changed dramatically from 1990 to 2020, and the problem fragmentation become more prominent. However, existing research lacks a focus on two specific use types, paddy fields dryland. In this study, spatiotemporal driving mechanism field dryland during years 2020 were identified by using center gravity migration model, standard deviation ellipse, land-use dynamic model for urban agglomeration in middle reaches Yangtze River as an example. results show that there are significant differences characteristics MRYRUA. Among provinces cities, Hubei province its Xiangyang city showed most obvious trend change. loss gain is related economic policy contexts each period. main factor natural condition, whereas relatively important per capita disposable income rural residents. effects not independent; any interactions had stronger effect than single factor. general, study provides guidance references grain-producing areas undergoing rapid urbanization relating conservation, food security, sustainable agricultural utilization.

Language: Английский

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Coupling coordination analysis and spatiotemporal heterogeneity between urban land green use efficiency and ecosystem services in Yangtze River Economic Belt, China

Humanities and Social Sciences Communications, Journal Year: 2024, Volume and Issue: 11(1)

Published: Oct. 3, 2024

Language: Английский

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Multi-Scenario Simulating the Impacts of Land Use Changes on Ecosystem Health in Urban Agglomerations on the Northern Slope of the Tianshan Mountain, China

Land, Journal Year: 2024, Volume and Issue: 13(5), P. 571 - 571

Published: April 25, 2024

It is of great significance for scientific land use planning and ecological security protection to clarify the impacts changes on an ecosystem’s health. Based dynamic evolution ecosystem health Northern Slope Tianshan Mountain (NSTM) from 2000 2020, this study utilized patch-generating simulation (PLUS) model, Vitality–Organization–Resilience–Services (VORS) elasticity approach assess under four different scenarios: Natural Development Scenario (ND), Farmland Conservation Priority (FP), Ecological (EP), Urban (UD). The results indicate that (1) NSTM 2020 was predominantly characterized by barren grassland. (2) overall level poor but showed a gradual improvement trend. (3) Ecosystem levels vary greatly across scenarios. In general, improves FP EP scenarios deteriorates significantly ND UD resilience varies categories. future, optimizing current pattern refining policy are essential enhance services in NSTM.

Language: Английский

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Modelling the impact of ecosystem fragmentation on ecosystem services in the degraded Ethiopian highlands

Ecological Informatics, Journal Year: 2025, Volume and Issue: unknown, P. 103100 - 103100

Published: March 1, 2025

Language: Английский

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