摘要
赛里木湖集水面积 14 0 8km2 ,湖面面积 4 5 7km2 ,最大水深 86m ,总蓄水量 2 10× 10 8m3 ,是新疆最大的高山湖泊 ,湖面海拔 2 0 73m ,四周高山环绕 .2 0世纪 80年代以后 ,赛里木湖及邻近地区 ,气温逐渐升高 ,降水增多 ,气候趋向暖湿 .2 0世纪 80年代气温比前 2 0a平均升高 0 .4～ 0 .6℃ ,90年代气温比 80年代升高 0 .3～ 0 .4℃ ,比前 2 0a平均升高 0 .7～ 1.0℃ ,比前 30a平均升高 0 .6～ 0 .8℃ .2 0世纪 90年代 ,切德克水文站降水量比多年平均多 5 .4 % ;匹里青水文站降水量比多年平均多7.0 % ;温泉气象站增加最多 ,比多年平均增加 2 0 .3% .赛里木湖相邻地区降水径流增多 ,赛里木湖区的降水径流增大 ,导致湖水位上升 .
Located at the west of the Tianshan Mountains, the southwest of the Junger Basin, Sailimu Lake is the largest alpine lake in Xinjiang with a catchment area of 1 408 km 2 , lake area of 457 km 2 . Its maximum depth reaches to 86 meters, and total water capacity is 210×10 8 m 3 . The altitude of the lake is 2 073 m. Surrounded by high mountains, it is an occluded lake. Since 1980s, there is a warm-wet trend of the climate in Sailimu Lake and its neighboring areas, indicated by increasing of the precipitation and rising of the air temperature. According to the meteorological records, the mean decadal temperature in 1980s is 0.4～0.6 ℃ higher than the mean temperature in former 20 years.The mean decadal temperature in 1990s is 0.3～0.4 ℃ higher than that in 1980s, 0.7～1.0 ℃higher than the mean temperature in former 20 years, and 0.6～0.8 ℃ higher than he mean temperature in former 30 years. In 1990, the precipitation amounts at Qiedeke station and Piliqing station are 5.4% and 7.0% more than the multi-year mean values respectively. At Wenquan station, precipitation in 1990s increases about 20.3% compared with the annual mean value. The correlation coefficient for the precipitation between the Sailimu Lake Meteorological station and the Wenquan Station is 0.948, which means that increasing of the precipitation and runoff in neighboring area will be a indication of increasing of those inSalimu lake. Therefore, the water level of Sailimu Lake will certainly rise because of the influence of the warm-wet climate.
出处
《冰川冻土》
CSCD
北大核心
2003年第2期219-223,共5页
Journal of Glaciology and Geocryology
基金
中国科学院知识创新工程重大项目 (KZCX1 10 0 6
KZCX2 3 0 1)
中国科学院新疆生态与地理研究所 (2 0 0 0 10 14 )资助
