Han Shifeng,Shi Zhye,Xu Jianrong.The Evaluation on Cropland Water Recovery in Different Topography Southern Ningxia Semi-Arid Area[J].Research of Soil and Water Conservation,1996,3(01):22-26.
宁南半干旱地区不同立地农田水分恢复评价
- Title:
- The Evaluation on Cropland Water Recovery in Different Topography Southern Ningxia Semi-Arid Area
- 摘要:
- 长期测定得到，宁南半干旱地区的农田土壤水分都能得到全面恢复或基本恢复，可恢复到当地田间持水量的80%～100%，以豌豆地恢复最好，马铃薯地较差.为年周期水分恢复类型区；剖面土壤水分，一般都在0～2m土层内得到全面和基本恢复；土壤水分恢复时间在雨季，即7～10月，山地比源地提前一个月，源地比川台地提前半个月，马铃薯、谷糜、胡麻比其它作物地提前近一个月.按照水分恢复情况要作好秋墒保护工作.
- Abstract:
- Through long period experiments in Southern Ningxia,the paper gave the results that cropland soil moisture could be recovered or mainly recovered ate 80%-100% of FC lever.The best recovered is pealand,and the last is potato land.So the area was classed as the yearly water recovery region.Its 0-2m depth soil could be mainly or completely compensated.The recovery begin at july and end at October with the tendency;slop land’s completed a month earlier than table land,tableland’s finished half a month earlier than table land;Soil water of potatoland,proso or flaxland would be recovered a month earlier than other corpland.Then we could do beffer in Soil Water keeping according to the water recovery condition.
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备注/Memo
收稿日期:1995-11-10;改回日期:。