干旱区研究2024，Vol.41Issue(11)：1808-1818,11.DOI:10.13866/j.azr.2024.11.02
近60a新疆开都-孔雀河流域大气饱和水汽压差变化特征及影响因子
Changes in atmospheric vapor pressure deficit in the Kaidu-Kongque River Basin and its influencing factors
摘要
Abstract
In this study,we analyzed meteorological observation data from the Kaidu-Kongque River basin in Xinjiang between 1961 and 2021 to investigate trends of vapor pressure deficit(VPD),as well as saturated(es)and actual(ea)water vapor pressure.We explored VPD changes across mountainous,oasis,and desert environ-ments along with the factors influencing these changes.The results revealed the following:(1)Annual and season-al VPD showed an upward trend from 1961 to 2021,characterized by distinct phases in which a sudden change occurred in 1997,shifting from a downward trend from 1961 to 1996 to an upward trend from 1997 to 2021,high-lighting an intensification of atmospheric drought post 1997,particularly in spring.(2)VPD trends align with those of temperature and ea,showing the most significant increase in desert environments,followed by oasis and mountainous environments.(3)VPD changes are primarily affected by ea and es,positively correlated with tem-perature changes and negatively correlated with Relative Humidity changes.The rapid rise in temperature and de-cline in RH since 1997 are the primary causes of accelerated VPD,with the growth rate of ea being lower than that ofes.These findings enhance our understanding of atmospheric drought and its response to climate change.关键词
饱和水汽压差(VPD)/实际水汽压/变化特征/影响因子/开都-孔雀河Key words
VPD/actual water vapor pressure/variation characteristics/influencing factors/Kaidu-Kongque River引用本文复制引用
李晓琦,李漠岩,李佳卉,姚俊强,许兴斌..近60a新疆开都-孔雀河流域大气饱和水汽压差变化特征及影响因子[J].干旱区研究,2024,41(11):1808-1818,11.基金项目
新疆人才发展基金"天池英才"引进计划青年博士项目 （）
上海合作组织科技伙伴计划及国际科技合作计划项目(2023E01022,2023E01005) （2023E01022,2023E01005）
中国沙漠气象科学研究基金(Sqj2023017) （Sqj2023017）
