中国长江流域生态系统服务供需和流量的定量评估

IF 1.8 4区 地球科学 Q3 GEOSCIENCES, MULTIDISCIPLINARY Frontiers of Earth Science Pub Date : 2024-07-04 DOI:10.1007/s11707-024-1114-1
Dongjie Guan, Xiaofeng Fan, Lilei Zhou, Kangwen Zhu
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引用次数: 0

摘要

生态系统服务流是运输、转化和维持生态系统服务以及连接供需双方的关键。本研究试图定量评估长江流域 2000 年、2010 年和 2020 年的生态系统服务供需流,评估生态系统服务流在省级、流域和城市群尺度上的空间格局演变,并设计生态系统服务流的分区标准。结果如下1) 2000-2020 年间,长江淡水供应、水利服务和碳汇服务流量逐步下降。这些服务流量的下降率分别为 10.90%、11.11% 和 5.17%。气候调节服务流量呈现先降后升的模式,下降率为 35.53%。2)长江下游和长三角城市群的生态系统服务流量最低。长江上游和成渝城市群的淡水供应服务流量和水利服务流量最高。碳汇服务流量和气候调节服务流量在长江流域中游和长江中游城市群最高。3)2000-2020 年,长江流域汇入区、流入区、流出区面积比例变化率分别为 1.06、3.17 和 0.86。本研究成果可为调节长江流域生态系统服务功能、促进区域可持续发展、实现流域资源合理利用提供决策支持。
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Quantitative assessment of the supply, demand and flows of ecosystem services in the Yangtze River Basin, China

Ecosystem service flow is essential for transporting, transforming, and maintaining ecosystem services and connecting supply and demand. This study attempted to quantitatively assess the supply and demand flows of ecosystem services in the Yangtze River Basin in 2000, 2010, and 2020; assess the evolution of the spatial patterns of ecosystem service flow at the provincial, watershed and urban agglomeration scales; and design a zoning standard for ecosystem service flow. The results showed as follows. 1) Between 2000 and 2020, the Yangtze River had a progressive drop in its freshwater supply, water conservation service and carbon sequestration service flows. The decline rates for these services were measured at 10.90%, 11.11%, and 5.17%, respectively. The climate regulation service flow exhibited a pattern of initial fall followed by a subsequent increase, characterized by a decline rate of 35.53%. 2) The lowest was the ecosystem service flow in the lower reaches of the Yangtze River and the Yangtze River Delta urban agglomeration. Freshwater supply service flow and water conservation service flow were the highest in the upper reaches of the Yangtze River and the Chengdu-Chongqing urban agglomeration. Carbon sequestration service flow and climate regulation service flow were the highest in the middle reaches of the Yangtze River Basin and the urban agglomeration in the middle reaches of the Yangtze River. 3) From 2000 to 2020, the change ratios of the area proportion of the confluence, flow, and outflow areas in the Yangtze River Basin were 1.06, 3.17, and 0.86, respectively. The results of this research could offer decision support for regulating ecosystem services in the Yangtze River Basin, promoting sustainable regional development and achieving rational use of the basin resources.

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来源期刊
Frontiers of Earth Science
Frontiers of Earth Science GEOSCIENCES, MULTIDISCIPLINARY-
CiteScore
3.50
自引率
5.00%
发文量
627
期刊介绍: Frontiers of Earth Science publishes original, peer-reviewed, theoretical and experimental frontier research papers as well as significant review articles of more general interest to earth scientists. The journal features articles dealing with observations, patterns, processes, and modeling of both innerspheres (including deep crust, mantle, and core) and outerspheres (including atmosphere, hydrosphere, and biosphere) of the earth. Its aim is to promote communication and share knowledge among the international earth science communities
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