摘要
塔什库尔干河主要由喀喇昆仑山区冰川融雪径流组成,是塔什库尔干县农业发展的命脉。以塔什库尔干河流域为研究对象,基于2006~2015年MOD10A2的8d积雪合成数据,采用多项式拟合和ArcGIS空间分析方法,研究积雪覆盖率随地形因子的变化规律。结果表明,积雪覆盖率与高程呈线性正相关,较高的积雪覆盖率主要集中在海拔高度超过5400m的地区;南坡积雪覆盖率最低,北坡最高;积雪覆盖率随坡度的增加表现为增大趋势,坡度带年内变化的增长趋势均呈"N"型,45°~75°坡度的积雪覆盖率最大。
The Tashkurgan River is the mainly composed of Glacial Snow Melting runoff in the Karakorum Mountains,which is the lifeblood of agricultural development in Tashkurgan County.Taking the Tashkurgan River Basin as the research object,based on the 8-day snow cover synthetic data of MOD10A2 from 2006 to 2015,the variation of snow cover with topographic factors was studied by polynomial fitting and ArcGIS spatial analysis method.The results show that there is a linear positive correlation between snow coverage and elevation,and the higher snow coverage is mainly concentrated in the areas with elevation over 5400 m.The snow cover rate on the south slope is the lowest and that on the north slope is the highest.The snow cover rate increases with the increase of slope.The annual change of the slope zone shows an"N"type,and the snow cover rate of 45°~75°degree slope is the largest.
作者
郑淑文
彭亮
何英
穆振侠
梁川
卫仁娟
ZHENG Shu-wen;PENG Liang;HE Ying;MU Zhen-xia;LIANG Chuan;WEI Ren-juan(College of Water Resources and Civil Engineering,Xinjiang Agricultural University,Urumqi 830052,China;State Key Laboratory of Hydraulics and Mountain River Development and Protection,College of Water Conservancy and Hydropower,Sichuan University,Chengdu 610065,China)
出处
《水电能源科学》
北大核心
2019年第10期25-29,共5页
Water Resources and Power
基金
国家自然科学基金地区基金项目(51569031,51469034)
