Are wading birds the ideal focal species for broader bird conservation? A cost-effective approach to ecological network planning

Ecological Indicators, Journal Year: 2024, Volume and Issue: 160, P. 111785 - 111785

Published: Feb. 26, 2024

Focal species play a crucial role in planning ecological networks (ENs). Despite the finding that ENs designed for specific focal can yield benefits associated communities, current practices of applying individual have faced criticism oversimplifying intricate ecosystems. Besides, aggregation has been demonstrated as ineffective and costly. To improve cost-effectiveness, with similar habitat preferences are typically conserved using shared strategies. Thus, drawing from preference wading birds blue green spaces, we hypothesized an EN may benefit co-existing water forest prefer or spaces. validate this hypothesis, conducted our study Yangtze River Delta's Ecological Green Integration Demonstration Zone. We simulated six scenarios S1-S6 to compare cost-effectiveness networks, respectively water, forest, S2-S4, aggregate S5-S6. During ENs' construction, employed InVEST Habitat Quality model, MSPA, MCR Linkage Mapper Tools. Furthermore, selected most cost-effective by calculating connectivity-cost ratio (CCr index) ranked conservation priority its sources corridors. The results showed EN4 highest CCr index displayed high efficiency all bird species. 93.41% primary ES4 42.46% secondary overlapped redline permanent basic farmland could be well protected under statutory planning. Our findings confirm ideal broader context Delta. constructed regional contribute establishing linkage supra-regional world's major migration flyway. Moreover, approach provide new insights targeting perspective multi-species

Language: Английский

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Research on the Carbon Sequestration Capacity of Forest Ecological Network Topological Features and Network Optimization Based on Modification Recognition in the Yellow River Basin Mining Area: A Case Study of Jincheng City

Remote Sensing, Journal Year: 2024, Volume and Issue: 16(11), P. 1986 - 1986

Published: May 31, 2024

Forests are vital for terrestrial ecosystems, providing crucial functions like carbon sequestration and water conservation. In the Yellow River Basin, where 70% of forest coverage is concentrated in middle reaches encompassing Sichuan, Shaanxi, Shanxi provinces, there exists significant potential coal production, with nine planned bases. This study centered on Jincheng City, Province, a representative mining area combined MSPA analysis method MCR model to generate five-period ecological network City from 1985 2022 under background calculate degree centrality, closeness betweenness eigenvector centrality; correlation between four centralities ability further explored. Simultaneously, employing RAND-ESU algorithm motif identification within networks, this integrates policies research specific conditions region optimize City. Findings reveal following. (1) Forest spatial networks: networks exhibit robust overall connectivity area, corridors spanning region. However, certain areas high resistance hinder key nodes mining. (2) Correlation topological indices services: From 2022, capacity City’s source increased year by year, positive correlations were observed centrality services, indicating strengthening trend over time. (3) Motif Recognition Ecological Network Optimization: During study, types motifs identified based number their connections using algorithm. These 3a, 4a, 4b, 4d (where represents letter connection type). Among these, 3a 4b play role. Based these practical considerations, optimization was performed existing enhance robustness network.

Language: Английский

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Constructing ecological security pattern based on spatio-temporal evaluation of ecosystem services and ecological health in Chengdu, Southwest China

Frontiers in Environmental Science, Journal Year: 2024, Volume and Issue: 12

Published: June 5, 2024

Introduction With the acceleration of urbanization, human population and built surface in urban areas have increased rapidly, triggering numerous environmental problems. Identification ecological security pattern (ESP) can be helpful to optimize interaction relationship between conservation socioeconomic development a given region. In this study, taking Chengdu City as an example, methodology was used analyze city’s ESP. Methodology Ecological sources were identified based on their values, which derived from spatio-temporal evaluation ecosystem services health. The resistance revised with nighttime light index. Linkage Mapper combined circuit theory extracted corridors key nodes. Results: results showed that mean values presented downward then upward trend 2000 2018. 2018, ESP formed by 140 total area 8,819.78 km 2 , 302 456.91 well 61 pinch-points 17 barrier points. mainly distributed or nearby Longmen Mountain Longquan Mountain, two flanks Plain, connected each other hundreds corridors. Most composited forests mountainous linpan units (wooded lots) rural plain areas. On contrary, points districts metropolitan center. Conclusion Finally, study proposed constructing must adopt dynamic holistic approach considering change restoring ecosystems, shift demands for transformation urban-rural land use/cover. Restoring managing sustainably are important improving connectivity all over city, together, if functioning well, could further support realization sustainable urbanization.

Language: Английский

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Heavy Metal Contamination Assessment and Source Attribution in the Vicinity of an Iron Slag Pile in Hechi, China: Integrating Multi-Medium Analysis

Environmental Research, Journal Year: 2024, Volume and Issue: 263, P. 120206 - 120206

Published: Oct. 21, 2024

Language: Английский

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Integrity-centered framework for determining protected areas boundary: An application in the China's national park

Ecological Informatics, Journal Year: 2024, Volume and Issue: 84, P. 102885 - 102885

Published: Nov. 8, 2024

Language: Английский

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