| 基于供需关系的西南喀斯特区生态系统服务空间流动研究 |
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| 引用本文： | 张欣蓉,王晓峰,程昌武,刘世荣,周潮伟.基于供需关系的西南喀斯特区生态系统服务空间流动研究[J].生态学报,2021,41(9):3368-3380. |
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| 作者姓名： | 张欣蓉 王晓峰 程昌武 刘世荣 周潮伟 |
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| 作者单位： | 长安大学地球科学与资源学院, 西安 710054;长安大学土地工程学院, 西安 710054;陕西省土地工程重点实验室, 西安 710054;长安大学地球科学与资源学院, 西安 710054;中国科学院水利部水土保持研究所, 杨凌 712100;中国林业科学研究院森林生态环境与保护研究所, 北京 100091;长安大学地球科学与资源学院, 西安 710054;中国科学院生态环境研究中心, 北京 100085 |
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| 基金项目： | 中国科学院战略性先导科技专项（A类）（XDA20020402）；国家重点研发计划（2018YFC0507300） |
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| 摘 要： | 生态系统服务的持续供给是社会和自然可持续发展的基础，人类通过对生态系统服务的消费来满足需求和提高福祉。科学理解生态系统服务从产生、传递到使用的全过程，明确区域生态系统服务供给与需求的平衡状况，对于实现区域可持续发展与提高人类福祉具有重要意义。基于RUSLE、InVEST、CASA等多种模型和方法，量化西南喀斯特区2000-2015年土壤保持服务、产水和碳固定服务的供给量和需求量，探讨供需空间盈余变化特征，确定服务流传输路径和流量。结果表明：（1）研究区土壤保持、产水和碳固定服务供给量和需求量均呈增加趋势，供给量分别增长679.52 t/hm2、2.2×105 m3/km2、72.91 t/km2，需求量分别增加298.6 t/hm2、0.04×105 m3/km2、168.36 t/km2。（2）整个研究区上三种生态系统服务供给尚能满足需求，土壤保持和碳固定服务供需比均呈减少趋势，而产水服务的供需比呈增加趋势。（3）土壤保持高服务流主要分布在云南的黑水河流域、四川的雅砻江流域、广东的北江和东江流域；广西的红水河流域在2000年为产水服务需求区，而到2015年转变为高服务流；碳高服务流主要分布在云南的西南部，方向由西南至东北。
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| 关 键 词： | 西南喀斯特区 生态系统服务 供需平衡 服务流 |
| 收稿时间： | 2020/5/16 0:00:00 |
Ecosystem service flows in Karst area of China based on the relationship between supply and demand |
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| ZHANG Xinrong,WANG Xiaofeng,CHENG Changwu,LIU Shirong,ZHOU Chaowei.Ecosystem service flows in Karst area of China based on the relationship between supply and demand[J].Acta Ecologica Sinica,2021,41(9):3368-3380. |
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| Authors: | ZHANG Xinrong WANG Xiaofeng CHENG Changwu LIU Shirong ZHOU Chaowei |
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| Institution: | School of Earth Science and Resources, Chang''an University, Xi''an 710054, China;School of Land Engineering, Chang''an University, Xi''an 710054, China;Shaanxi Key Laboratory of Land Engineering, Xi''an 710054, China;School of Earth Science and Resources, Chang''an University, Xi''an 710054, China;Institute of Soil and Water Conservation, Chinese Academy of Sciences and Ministry of Water Resources, Yangling 712100, China;Research Institute of Forest Ecology, Environment and Protection, Chinese Academy of Forestry, Beijing 100091, China; School of Earth Science and Resources, Chang''an University, Xi''an 710054, China;Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China |
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| Abstract: | The continuous supply of ecosystem services is the basis of social and natural sustainable development. Human meet their demand and improve well-being through consuming ecosystem services. Research on ecosystem service flows contributes to our understanding of the completed delivery processes of ecosystem services and the relationship between ecosystem services supply and demand. It has great significance for achieving regionally sustainable development and improving human well-being. A variety of models and methods such as RUSLE, InVEST, CASA were used to calculate the supply and demand of soil conservation, water yield and carbon storage. The supply-demand balance and ecosystem services flow were analyzed and mapped. The results showed that:(1) the supply and demand of soil conservation, water yield and carbon storage showed an increasing trend during 2000-2015, with supply increasing by 679.52 t/hm2, 2.2×105 m3/km2, 72.91 t/km2, while demand increasing by 298.6 t/hm2, 0.04×105 m3/km2, 168.36 t/km2, respectively. (2) In the whole study area, the supply of three ecosystem services is able to meet the demand. The supply-demand ratio of soil conservation and carbon storage was decreasing, while water yield was increasing. (3) Soil conservation high service flows were mainly distributed in Heishui River Basin in Yunnan, Yalong River Basin in Sichuan, and Beijiang and Dongjiang River Basin in Guangdong. The Hongshui River Basin in Guangxi was the demand area of water yield in 2000, and transferred into high service flow in 2015. Carbon storage high service flow was mainly distributed in the southwest of Yunnan, and the direction is from the southwest to the northeast. |
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| Keywords: | Karst area ecosystem service supply-demand balance service flow |
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