论文部分内容阅读
为研究蒸散互补和蒸散正比两种蒸散发理论对区域水资源评价结果的影响,以南四湖湖东泗河流域为例,验证了泗河流域蒸散互补关系的存在,将蒸发皿蒸发量引入平流—干旱模型,计算了基于蒸散互补假设的流域实际蒸散发,并将月水量平衡模型分别与基于蒸散互补和蒸散正比假设的流域实际蒸散发计算方法相耦合,建立了两种区域水资源量评价模型,对泗河流域水资源量进行了模拟。结果表明,两种评价模型所得结果相差明显,多年平均值差异高达26.3%,基于蒸散正比假设计算得到的区域水资源量可能偏大。
In order to study the influence of evapotranspiration complementation and evapotranspiration on the evaluation results of regional water resources, taking Dongsihe basin of Nansihu Lake as an example, the authors verified the existence of the complementary relationship of evapotranspiration in Sihe River basin and introduced evapotranspiration The stratosphere-arid model is used to calculate the actual evapotranspiration of watershed based on the assumption of complementary evapotranspiration. The monthly water balance model is coupled with the calculation method of actual evapotranspiration based on the assumption of evapotranspiration complementation and evapotranspiration. Two types of regional water resources Evaluation model to simulate the water resources in Sihe River Basin. The results show that the results obtained by the two evaluation models are obviously different, with the difference of many years as high as 26.3%. The regional water resources calculated based on the assumption of evapotranspiration can be large.