近十年中国陆地水储量变化及其时空分布规律

被引:13
作者
严家宝 [1 ,2 ,3 ]
贾绍凤 [1 ,2 ]
吕爱锋 [1 ,2 ]
朱文彬 [1 ,2 ]
机构
[1] 中国科学院地理科学与资源研究所
[2] 中国科学院陆地水循环与地表过程重点实验室
[3] 中国科学院大学
关键词
近十年; 中国; 十大流域; 水储量; 时空分布;
D O I
暂无
中图分类号
P333 [水文分析与计算];
学科分类号
081501 ;
摘要
利用GRACE重力卫星数据分析了我国及十大流域近十年水储量变化趋势、年变化特征、年内分布特征以及时空分布规律,结合TRMM降水数据分析了水储量与降水的关系。研究结果表明:近十年,中国水储量变化趋势具有空间差异性,西南大部、华北平原及黄河中下游、西北准噶尔盆地一带水储量呈减少趋势,东南部、长江大部分区域、长江黄河源头以及塔里木盆地区域水储量呈增加趋势;中国水储量年变化幅度较小,淮河、海河、珠江、松花江流域振幅较大,西北诸河流域振幅最小,全国除黄河、海河和西北诸河流域外,流域水储量年变化与降水年变化均呈显著正相关,东南诸河、珠江、长江流域相关系数均达0.7以上;年内分布上,我国冬春季水储量亏缺,夏秋季水储量盈余,3月-4月西南诸河及长江流域水储量亏缺严重,7月-9月则盈余较大,华北平原5月-7月水储量有亏缺,其他月份则水储量略为盈余。此外,黄河、长江、东南诸河、西南诸河以及珠江流域水储量与降水量年内分布一致性较好,西北诸河流域2月-4月份水储量与降水一致性较差,其他月份一致性较好,而其它流域则一致性较差。
引用
收藏
页码:21 / 28
页数:8
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