Li Lan
 State Key Laboratory of Water Resources and Hydropower Engineering Science, Wuhan University, 430072

Abstract: LL Fully-distributed hydrologic models were established upon physical basis and have been developed to the forth generation since 1997. 3S techniques and grid cells based LL-III, a fully-distributed hydrologic model in which the effect of natural factors and human activities has been considered was introduced. And the model was employed to study to water cycle, water resources estimation, and flow forecast in the 4 typical catchments which include headwater area (above TangNaihai station), Ningmeng irrigation area, Wudinghe River watershed, and lower reaches of  the Yellow River, and application of flood forecast for Wangyao station of Xingzi watershed, Luhun Reservoir and Taoqupo Reservoir with LL-III model was briefly introduced as well in the paper.

Key words: fully-distributed hydrologic model, effect of human activity, water resources hydrologic cycle