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根据在甘肃子午岭 ,安塞墩滩和延安燕儿沟的试验观测资料 ,研究了梢林区植被对降水的拦蓄和消耗情况 ;分析了农区基本农田上和退耕还林 (草 )坡地上作物和植物对降水的拦蓄和土壤水分季节动态 ;计算了本区主要农作物和几种有代表性的乔、灌、草植物的全生育期内需水量和降水资源补给的盈亏状况 ;并提出了几种利用降水资源和河川径流的模式
Based on the experimental observation data of Ziwuling, Ans’ertan and Yan’ergou in Gansu, the interception and consumption of precipitation in the forest area of Tsaolin were studied. The effects of precipitation on the basic farmland and the land of conversion of cropland to forest (grassland) were analyzed Crops and plants to interception of precipitation and seasonal changes of soil moisture; calculated the main crops in this area and several representative Joe, irrigation, grass plant water demand during the whole growth period and the supply and demand of precipitation resources surplus and loss; The use of precipitation resources and runoff patterns