近期新疆湖泊变化所示的气候趋势

The Climate Trend Demonstrated by Changes of the Lakes in XinJiang Since Recent Yesar

由绿洲及其所在荒漠盆地平原与周边山地系统共同组成的新疆地域系统、是我国西北干旱区的主要部分之一。由于荒漠盆地平原系统不产生径流 ,因此 ,地表水、浅层地下水和泉水、湖泊都必然地以相邻的山地系统为供给水源地。从山地进入荒漠盆地平原的河流就成为主要供给渠道。博期腾湖、艾丁湖、艾比湖 1 995年以来 ,湖水水位明显升高 ,湖水面积的不断扩大 ,从湖泊水面面积的演变过程 ,主要水源变化 ,气温略微上升 ,降水显著增多诸因素综合系统分析 ,说明在全球气候背景下 ,区域气候和水文变化朝着有利新疆社会经济发展的方向演变 ,这种趋势将持续到 2 1世纪前 1

Consisted of the oases,desert basins,plains,and surrounding mountains,the Xinjiang territory system is one of the main arid areas in northwest China.The adjacent mountain systems are the water source areas of all the streams,shallow groundwater,springs,and lakes because runoff formation does not occur in the desert basin and plain systems.The rivers from the mountains to the desert basins and plains are the main water feeding channels.Since 1995, the water level of Bosten Lake,Ayding Lake raises obviously,and their water area is continuously enlarge.Under the effect of global climate changes,it is considered that the regional climate and the hydrologic phenomena in Xinjiang change towards a direction which is advantageous to the social and economic development and these trends will maintain during the first 10 years of the 21st century according to many factors,such as the obvious rise of water level and enlargemet of surface area of the lakes,slight rise of temperature,and obvious increase of precipitation.