Enhancing Ecological Network Connectivity Through Urban–Rural Gradient Zoning Optimization of Ecological Process Flow

Land, Journal Year: 2025, Volume and Issue: 14(4), P. 668 - 668

Published: March 21, 2025

Urbanization has significantly impacted ecological connectivity, making the optimization of networks (ENs) crucial. However, many existing strategies focus on overall network structure and overlook spatial concentration local processes flow (EPF), limiting effectiveness planning. This study proposes a novel EN framework based urban–rural gradient zoning to enhance connectivity from perspective EPF. The divides areas outside core urban zone (CUZ) into fringe (UFZ), interface (UIZ), natural rural (NRZ), applying tailored in each zone. These include increasing corridor redundancy, reducing resistance, expanding width alleviate EPF concentration. Using Jinan, mega-city China’s Yellow River Basin, as case study, this simulated changes over 20 years validated framework’s effectiveness. Optimization validation showed that land low-flow corridors 65% UIZ NRZ 5 km improved by 6.3%, addressing seven pinch points three barrier points. highlights importance optimizing ENs via support sustainable development protection policies.

Language: Английский

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Landscape structure evolution and ecological risk evaluation of oasis desert cities: A case study of Tiemenguan city

PLoS ONE, Journal Year: 2025, Volume and Issue: 20(5), P. e0321762 - e0321762

Published: May 7, 2025

The rapid development of oasis desert cities adversely affects fragile ecosystems, preventing regional sustainable development. This study investigates the spatiotemporal evolution characteristics and potential quantitative relationship between landscape structure (OLS) ecological risk index (ERI) trend in different scenarios Tiemenguan City, a typical city an arid zone northwestern China, from 1990 to 2020. We calculated ERI thresholds for types, classified levels, examined factors influencing risk. normalized difference vegetation (NDVI) were NDVI ≥ 30% oases, 10% <NDVI < transition zones, ≤ areas. Under government control, transitions cropland, woodland, grassland built-up unused land decreased by 20%, whereas conversions increased 30%. results showed following: (1) area expanded continuously 175.5 km 2 345.3 during 30 years. zones 49.7% 37.9%, respectively. was strongly correlated with OLS. zone-transition zone-desert 0.08–0.085 0.111–0.118, (2) Socioeconomic factors, including infrastructure expansion, population density, GDP, dominant influences, contributing 64% ERI, influence natural such as climate declined. (3) low-ERI areas 3.3% under significantly, slowing growth rate zone. quantitatively evaluated types’ levels analyzed effects dynamic migration on type stability. paper provides systematic research framework assessment various types scientific basis conservation related research.

Language: Английский

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Water beetle networks differences and migration between natural lakes and post-exploitation water bodies

Scientific Reports, Journal Year: 2025, Volume and Issue: 15(1)

Published: May 7, 2025

Language: Английский

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Conservation strategies for the North China leopard: Establishing effective ecological corridors in Shanxi Province

Ecological Indicators, Journal Year: 2024, Volume and Issue: 169, P. 112908 - 112908

Published: Nov. 28, 2024

Language: Английский

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