兴凯湖灌区工程后产流分析

Analysis on Runoff After Engineering of Xingkai Lake Irrigation Area

兴凯湖灌区位于黑龙江省三江平原,区内缺少水文站,以往工作中灌区内地表径流均以水文图集中年径流深成果采用等值线图法进行估算,考虑区域内径流等值线稀疏,估算径流成果误差较大,采用平原水网地区常用的地面分类法简化计算模型对灌区工程后产流状况进行分析,该方法简单,概念明确,计算成果合理,方便于计算机操作,分析成果可以作为工程规划阶段的计算依据。

Xingkai Lake Irrigation Area is located in Sanjiang Plain in Heilongjiang Province. This area is lack of hydrological stations. In previous work, the surface runoff in this area was estimated by the contour map of annual runoff depth results in hydrologic atlas. Considering the runoff contour is sparse and the error of estimating runoff results is bigger, the ground classification simplified model commoly used in a plain water network area is used to analyze the runoff after the engineering in the irrigation area. The method is simple, its concept is clear and its calculation results are reasonable. It is facilitated to the operation of computer. The analysis results can be used as the basis of the calculation in the planning phase of a project.