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

The Coupling Coordination Relationship Between Urbanization and Ecosystem Health in the Yellow River Basin: A Spatial Heterogeneity Perspective

Land, Journal Year: 2025, Volume and Issue: 14(4), P. 801 - 801

Published: April 8, 2025

Understanding the socioecological nexus between urbanization and ecosystem health (EH) is crucial for formulating sustainable development policies. While prior research has focused on this topic, critical gaps persist in characterizing distributional polarization decomposing inequality drivers within coupled human–environment systems—particularly China’s Yellow River Basin (YRB), a strategic region undergoing concurrent ecological restoration urbanization. The integration of kernel density estimation Theil index establishes robust analytical framework to effectively overcome spatial heterogeneity limitations regional disparity research. Therefore, study combines coupling coordination degree (CCD), nonparametric estimation, decomposition examine complex interactions (EHI) across 538 county-level units from perspective heterogeneity. key findings reveal following: (1) Urbanization exhibited phased enhancement yet maintained elementary developmental stages overall, with distinct gradient descending eastern/central riparian counties western hinterlands. (2) EHI showed marginal upward trend, 80.29% persisted suboptimal categories (EHI-1 EHI-3), gains concentrated high-vegetation mountainous areas (45.72%) versus declines economically developed areas. (3) CCD evolved mild imbalance (II-1) low (III-1) but significant special differences—the midstream downstream improved markedly, while upstream remained weakest. (4) Intragroup disparities, particularly among middle reaches, were primary disequilibrium YRB, contributing 87.9% overall inequality. In contrast, regions improvements levels, accompanied by emergence “multi-polarization” patterns. provide refined differentiated decision-making references narrowing gap coordinated YRB.

Language: Английский

Spatiotemporal Changes and Driving Mechanisms of Ecosystem Service Supply–Demand Contradictions Under Urbanization

Land, Journal Year: 2024, Volume and Issue: 13(11), P. 1884 - 1884

Published: Nov. 11, 2024

Clarifying the driving mechanisms of ecosystem service (ES) supply and demand under urbanization is significant importance for urban ecological planning management. However, how balance ES its vary with degree has been little studied. In this study, we analyzed spatiotemporal changes correlations between in Zhengzhou Metropolitan Area (ZZMA) from 2000 to 2020 further explored behind these changes. The results showed that, (1) 2020, ZZMA experienced a deficit comprehensive demand, regions rapid development were more likely trigger imbalances demand; (2) spatial mismatch low–high was primarily distributed built-up areas various cities, while high–low mostly found forest grassland areas; (3) level spatially negatively correlated ratio demand. Regions lower susceptible disturbances caused by urbanization; (4) population density key factor influencing carbon sequestration, oxygen release, water conservation, food provision services, proportions land construction had greatest influence on air purification leisure services. It important ensure status northwestern, southwestern, central mountainous forested maintain agricultural main grain-producing eastern plains; strengthen restoration green infrastructure formulate differentiated management policies promote sustainable safeguard security region.

Language: Английский