干旱区地理2024，Vol.47Issue(8)：1292-1303,12.DOI:10.12118/j.issn.1000-6060.2024.094
昆仑山北坡陆地水储量变化及其驱动因素分析
Changes in terrestrial water storage and its drivers on the north slope of Kunlun Mountains
摘要
Abstract
Terrestrial water storage are crucial in the hydrological cycle.Analyzing the dynamics of these re-serves and their main driving mechanisms provides a scientific basis for the macro-control,management,and pro-tection of water resources.This study examines the dynamic changes in terrestrial water storage on the north slope of the Kunlun Mountains from 1990 to 2020,utilizing multi-source data including GRACE data,meteoro-logical data,actual evapotranspiration,and human activities.It quantitatively evaluates the influence of various factors on the long-term changes in water storage in this region.The results indicate significant variation and dif-ferentiation in water reserves across the area.Notably,79.63%of the area showed an increasing trend.Water re-serves in the Yarkant River Basin exhibited deficits,while those in the Kumukuli Basin displayed significant sur-pluses.The overall increase in water reserves on the north slope was 0.123 cm·a-1,with the peak rate occurring in 2005-2006,marking a change of 2.253 cm.The Kumukuli Basin,along with the Keriya River Basin,Qarqan River Basin,and Hotan River Basin,all demonstrated increasing trends,especially notable in the Kumukuli Ba-sin.Both temperature,precipitation and evapotranspiration showed fluctuating upward trends from 1990 to 2020,with average annual precipitation varying significantly and exhibiting spatial heterogeneity.The correlation be-tween terrestrial water storage and average annual temperature,precipitation,and actual evapotranspiration over the 30-year period showed varying degrees of correlation,with positive correlation areas accounting for 40.78%,54.19%,and 44.74%,respectively.Among meteorological factors,temperature and precipitation were the primary drivers of changes in terrestrial water storage.The strongest explanatory power was observed in the interaction be-tween temperature and population density(0.823),and between temperature and precipitation(0.713)among me-teorological factors,indicating that their combined impact significantly exceeds that of any single factor.关键词
陆地水储量/GRACE/气候变化/人类活动/昆仑山北坡Key words
terrestrial water storage/GRACE/climate change/human activities/north slope of Kunlun Moun-tains引用本文复制引用
夏婷婷,薛璇,王灏伟,徐文哲,盛紫怡,汪洋..昆仑山北坡陆地水储量变化及其驱动因素分析[J].干旱区地理,2024,47(8):1292-1303,12.基金项目
第三次新疆综合科学考察项目(2021xjkk010202)资助 （2021xjkk010202）
