Reference evapotranspiration concentration and its relationship with precipitation concentration at southern and northern slopes of Tianshan Mountains, China

论文摘要

The investigation of concentration characteristics of reference evapotranspiration（ETref） is important for water resources management. The concentration index（CI）, concentration degree（CD） and concentration period（CP） are used to investigate the concentration characteristics of ETref and the relationship between ETref concentration and precipitation concentration at sub-monthly timescale based on the daily climatic variables from 1966 to 2015 in 27 meteorological stations at the southern and northern slopes of Tianshan Mountains in China. It was found that the CI of ETref is about 0.40 and less concentrated than precipitation in the study area. At the southern slope, the maximum ETref appears in late June and is earlier than the maximum precipitation（early July）, ETref distributes more equally than precipitation, and the CI, CD and CP of these two variables do not show significant change based on the Mann–Kendall test. At the northern slope, both the maximum ETref and precipitation appear in early July, and ETref is more dispersed than precipitation. During the study period, the maximum ETref at the northern slope tends to appear earlier due to the impacts of wind speed, relative humidity, sunshine duration, and air temperature. ETref concentration does not match the precipitation concentration in the study area, particularly at the southern slope. The mismatch between ETref and precipitation concentration within a year reveals the water resources pressure on environmental, social and economic sustainability in the study area.

论文目录

文章来源

类型: 期刊论文

作者: HUANG Fa-rong,YANG Tao,LI Qian,LI Si-si,LI Lan-hai,Suwannee ADSAVAKULCHAI

来源: Journal of Mountain Science 2019年06期

年度: 2019

分类: 基础科学

专业: 气象学

单位: State Key Laboratory of Desert and Oasis Ecology, Xinjiang Institute of Ecology and Geography, Chinese Academy of Sciences,Ili station for Watershed Ecosystem Research, Chinese Academy of Sciences,Research Center for Ecology and Environment of Central Asia, Chinese Academy of Sciences,University of Chinese Academy of Sciences,School of Engineering, University of the Thai Chamber of Commerce

基金: funded by the West Light Foundation of the Chinese Academy of Sciences (2016–QNXZ–B–13),the open project of the Xinjiang Uygur Autonomous Region Key Laboratory (2017D04010),the natural science foundation of Xinjiang Uygur Autonomous Region (2017D01B52),the Pan-Third Pole Environment Study for a Green Silk Road (PanTPE) (No. XDA2004030202)

分类号: P426

页码: 1381-1395

总页数: 15

文件大小: 2819K

下载量: 13

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