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选择和田河流域作为和田地区水资源的典型代表,和田河流域代表站和田市气象站1961～2004年的夏季高空500～300hPa气温、0℃层高度资料、和田河上游(乌鲁瓦提和同古孜洛克站)水文资料,分析了和田河流域夏季高空气温、0℃层平均高度和夏季流量的年际线性趋势变化。结果表明:近44a来和田河流域夏季高空500～300hPa平均气温和0℃层高度呈下降趋势,倾向率分别为-0.322℃/10a、-32.42gpm/10a;夏季流量也呈下降趋势,其倾向率为-7.26m3s-1/10a。和田河流域夏季高空500～300hPa平均气温和0℃层高度的下降等高空气候变化是和田河夏季流量减少的主要原因。
Hetian River Basin as a typical representative of the water resources in the Hetian area, the representative station of the Hetian River Basin Wada meteorological station from 1961 to 2004 summer high altitude 500 ~ 300hPa temperature, 0 ℃ layer height data, and the upper reaches of the Hetian River Guzirok station) hydrological data, analysis of the Hetian River basin in summer high temperature, 0 ℃ average height and summer flow interannual linear trend. The results showed that in the recent 44 years, the average temperature and 0 ℃ layer height of 500 ~ 300hPa in summer at high altitude in Hetianhe River Basin showed a downward trend with the tendency rates of -0.322 ℃ / 10a and -32.42gpm / 10a respectively; the summer flow rate also showed a downward trend, The rate is -7.26m3s-1 / 10a. The Hetian River Basin summer high altitude 500 ~ 300hPa average temperature and 0 ℃ layer height decline and other high altitude climate change is the main reason for the decrease of summer flow in Hotan River.