文档介绍：长江流域径流时空分布及变化规律研究戴明龙张明波摘要: 为了向长江流域综合规划修编工作提供基础水文支撑资料,依据长江主要干支流水文站的实测资料,分析了长江流域的降雨径流时空分布规律,长江流域径流深的分布情况、干流主要控制站径流的组成、年际变化及丰枯特征、年内分配特征等。结果表明, 长江流域年径流深地区分布及年内径流分配不均; 支流径流年际变化大、干流变化小,常出现连续丰水年和连续枯水年的情况。长江流域径流时空分布特征应在流域综合规划修编时予以重视。关键词: 径流; 地区分布; 年际变化; 年内分配; 长江流域中图法分类号: TV121 文献标志码:A 文章编号: 1001-4179(2013)10-0088-04 Research on temporal and spatial distribution law of runoff in Yangtze River Basin DAI Minglong , ZHANG Mingbo Abstract: In order to provide basic hydrological support data prehensive planning revision of Yangtze River Basin , based on the measured data of main hydrological stations of main stem and tributaries of Yangtze River , the temporal and spatial distribution laws of precipitation and runoff are analyzed . The main analysis contents contain the distribution condition of runoff depth in the basin , position of main hydrological stations of the main stem , inter-annual variation of runoff and its characteristics in flood season and dry season , and annual distribution of runoff . The analysis results show that the regional distributions of annual runoff depth and the annual runoff are uneven; the inter-annual variation of runoff in tributaries is lager , but smaller in main stem , and consecutive wet years or dry years occur frequently in tributaries . These temporal and spatial distribution characteristics of runoff should be considered in prehensive planning revisio