水土保持学报2023，Vol.37Issue(6)：161-169,9.DOI:10.13870/j.cnki.stbcxb.2023.06.021
祁连山国家公园产水量时空变化及驱动因素分析
Analysis of the Spatial-temporal Variation and Driving Factors of Water Yield in Qilian Mountain National Park
摘要
Abstract
To accurately characterize the spatial and temporal heterogeneity of water yield in Qilian Mountains National Park and explore the influencing factors and driving mechanisms affecting water yield.The InVEST model was used to visualise the spatial and temporal pattern of water yield in the Qilian Mountains National Park from 1990 to 2018 based on the parameters of precipitation,evapotranspiration of reference crops,soil depth,root depth,and land use type,using a geo-detector and combined with a scenario simulation methods to assess and quantify the effects of climate,land use,vegetation,terrain,and other factors on the spatial heterogeneity and changes in water yield in the Qilian Mountains National Park.The results showed that:(1)From 1990 to 2018,the water yield in the study area increased significantly with a trend of 0.56×108 m3/a,with a spatial increasing trend from west to east.(2)Farmland and Forestland had the largest water yield depth,and Unused land and Grassland were the main contributors to water yield in the study area.The high-value water yield depth areas were located at high altitudes between 3 200 m to 4 600 m.(3)Precipitation was the first driver of spatial heterogeneity of water yield,and the interaction with actual evapotranspiration and land use type dominates.(4)From 1990 to 2018,climate change was the main driver of changes in water yield,with a positive effect on total water yield,followed by land use change,which mainly affects the spatial distribution of water yield change but had little effect on total water yield.The research results can further provide the basic theoretical for the water resources management and sustainable development of Qilian Mountain National Park.关键词
产水量/空间异质性/祁连山国家公园/地理探测器Key words
water yield/spatial heterogeneity/Qilian Mountain National Park/geo-detecto分类
环境科学引用本文复制引用
万志纲,丁文广,蒲晓婷,吴岩松,王亦悦..祁连山国家公园产水量时空变化及驱动因素分析[J].水土保持学报,2023,37(6):161-169,9.基金项目
国家重点研发计划项目(2019YFC0507450) （2019YFC0507450）
中国科学院战略性先导科技专项(XDA20100102) （XDA20100102）
