宁南半干旱地区不同立地农田水分恢复评价  

The Evaluation on Cropland Water Recovery in Different Topography in Southern Ningxia Semi-Arid Area

作　　者：韩仕峰[1] 史竹叶[1] 徐建荣[1] 

机构地区：[1]中国科学院水土保持研究所,水利部水土保持研究所

出　　处：《水土保持研究》1996年第1期22-26,共5页Research of Soil and Water Conservation

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。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.

关 键 词：农田水分恢复 评价 宁南 当地条件 半干旱地区 

分 类 号：S342.1[农业科学—作物栽培与耕作技术] S152.7[农业科学—农艺学]