漓江流域供水服务时空格局分析  

Spatio-temporal Analysis of Water Supply Services in the Li River Basin

作　　者：刘佳 肖玉[1,2] 黄孟冬 张昌顺 秦克玉 徐洁 刘婧雅 LIU Jia;XIAO Yu;HUANG Mengdong;ZHANG Changshun;QIN Keyu;XU Jie;LIU Jingya(Institute of Geographic Sciences and Natural Resources Research,Chinese Academy of Sciences,Beijing 100101,China;University of Chinese Academy of Sciences,Beijing 100049,China;School of Ecology and Nature Conservation,Beijing Forestry University,Beijing 100083,China)

机构地区：[1]中国科学院地理科学与资源研究所,北京100101 [2]中国科学院大学,北京100049 [3]北京林业大学生态与自然保护学院,北京100083

出　　处：《Journal of Resources and Ecology》2023年第1期195-206,共12页资源与生态学报（英文版）

基　　金：The Guangxi Science and Technology Major Project (AA20161002-3);The National Natural Science Foundation of China (41971272);The Strategic Priority Research Program of Chinese Academy of Sciences (XDA20020402)。

摘　　要：漓江的水供给服务对生态环境和当地社会发展非常重要。基于InVEST模型,本研究从栅格、子流域、区域等多个尺度定量分析了2000–2018年漓江流域的水供给服务的空间分布格局,明确了不同土地覆被类型的产水差异,探究了水供给服务的阶段变化特征。研究结果表明:(1)漓江流域水供给服务呈现北高南低的空间分布格局,产水量从北向南逐步递减。(2)漓江流域各土地覆被类型中,人工地表、裸地、草地、林地、耕地和水域的平均产水能力依次降低。(3)各子流域的平均供水服务量差异较大,有4个子流域属于供水服务高值区,8个子流域属于中值区,6个子流域属于低值区。(4) 2000–2010年,供水服务波动较大的区域有中游地区、荔浦河地区和恭城河北部地区;2010–2018年,波动较大的地区涉及中游地区和恭城河地区。该研究增加了对漓江流域供水服务的了解,可为构建区域生态补偿机制提供科学依据。The water supply services of the Li River are essential for the ecological environment and local social development. Based on the InVEST model, we quantitatively analyzed the spatial and temporal distribution patterns of water supply services in the Li River Basin from 2000 to 2018 at multiple scales, including the raster, sub-basin,and regional scales, clarified the differences in water yield among different land use types, and explored the different stages of changes in the characteristics of water services. The results revealed four key aspects of this system.(1) The water supply service of Li River Basin showed a spatial distribution pattern of high in the north and low in the south, and the water yield gradually decreased from north to south.(2) Among the various land use types in Li River Basin, the average water supply capacity decreased in the following order: artificial surface, unused land,grassland, forest, cropland and wetland.(3) The average amounts of water services in the 18 sub-basins varied widely, with four sub-basins belonging to the high-value area for water supply services, eight in the middle-value area, and six in the low-value area.(4) From 2000 to 2010, the regions with large fluctuations in water supply services include the midstream region, Lipu River region, and the northern region of Gongcheng River;while from 2010 to 2018, the areas with large fluctuations were in the midstream region and Gongcheng River region. The results of this research increase our understanding of the water supply services in the Li River Basin and provide a critical scientific basis for the reverse compensation of a regional ecological compensation mechanism.

关 键 词：生态系统服务 水供给服务 InVEST模型 时空分布格局 漓江流域 

分 类 号：X171.1[环境科学与工程—环境科学]