1. Analysis and prediction of the spatiotemporal characteristics of land-use ecological risk and carbon storage in Wuhan metropolitan area.
- Author
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Peng, Yuling, Cheng, Weiying, Xu, Xuexian, and Song, Huifang
- Subjects
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METROPOLITAN areas , *BODIES of water , *ECOLOGICAL risk assessment , *ENVIRONMENTAL risk , *SUSTAINABLE development , *CARBON , *ARABLE land , *GLOBAL warming - Abstract
• Carbon storage declined and ecological risk level increased during 2000–2030. • The growth of built-up land and the loss of carbon stock slowed in EP scenario. • The spatial autocorrelation of carbon storage and ecological risk was analyzed. • The spatial clustering of ecological risk and carbon storage are mainly LL and HL. In the context of global warming, understanding the spatiotemporal dynamic of carbon storage, land-use related ecological risks, and how ecological risks are correlated with carbon storage, is vitally significant for enhancing regional carbon-sequestration capacity, promoting the rational exploitation of land and green and low-carbon development. Using land-use data, this study employed the InVEST and PLUS models to analyze and forecast spatiotemporal variation in land-use, land-use ecological risks, and terrestrial ecosystem carbon storage in the Wuhan metropolitan area under multiple-scenarios. Spearman's correlation and spatial autocorrelation analyses were used to explore spatial correlations between carbon storage and land-use ecological risk. The following was found: (1) From 2000 to2020, the area of arable land, grassland, water body, and unused land reduced. In contrast, the area of forestland and built-up land increased. Similar land-use changes were observed in 2030 under the natural development scenario. The area of forestland, grassland, and water body increased, and the expansion of built-up land is effectively controlled under the ecological protection scenario. (2) Land-use ecological risks in the study area first declined and then increased over the research period, with an overall increase. (3) From 2000 to 2030, the carbon storage within the Wuhan metropolitan area declined. In the 2030 ecological protection scenario, the reduction in carbon storage is lower than under the natural development scenario. Through the lens of land-use categories, the entire carbon storage was, in descending order, arable land, forestland, built-up land, grassland, unused land, and water body. (4) Land-use ecological risk and carbon storage were negatively correlated and dominated by Low-High and High-Low aggregation zones. This study can serve as a reference for the future optimal layout of land-use and sustainable development of ecosystems in metropolitan areas. [ABSTRACT FROM AUTHOR]
- Published
- 2024
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