基于SWAP模型的毛乌素沙地地下水埋深与天然植被关系研究

进行了基于SWAP模型模拟的毛乌素沙地不同水文年地下水埋深的预测研究。根据预测出的不同水文年的地下水埋深的动态变化,预测出试验区在该水文年的天然植被生长状况与地下水埋深的关系,即芦苇出现频率峰值所对应的地下水埋深为1.45 m;赖草出现频率峰值所对应的地下水埋深为1.90 m。并用2006年的实测资料进行了检验,得出SWAP模型可以用于推求该地区不同水文年条件下的天然植被生长状况。

Relationship between Groundwater Level and Natural Vegetation in Maowusu Sandy Land Based on the SWAP Model

Predicted the groundwater table based on the model of SWAP under different hydrological years in Maowusu Sand and then according to the predicted result to predict the relationship of groundwater table and the growth of natural vegetations under this hydrological year in this test area,that peak frequency of the reed corresponding to the groundwater level is 1.45 m and that peak frequency of the leymus corresponding to the groundwater level is 1.90 m.And the result have been tested by the measured data in 2006,thus SWAP model can be used to inquire of the natural vegetation under the conditions of different hydrological years.