腾格里沙漠沙坡头地区的风沙土及其改良利用

Studies on Wind Sand Soil and Its Amelioration in Shapoton Area at Southern Edge of Tengger Desert

腾格里沙漠东南缘的沙坡头地区，由于气候干旱，风蚀频繁，因而形成的各类土壤均具有质地轻粗，有机质贫乏，保肥能力弱和富钾缺磷等特点，所以，在改良利用上应该积极营造防护林，创造细土层，改造粗骨性，并以广开肥源，种植绿肥，培养和提高土壤肥力为重点。

ecause of drought climate and frequent wind erosion, resulted soils has been possessing the charcteristics of coarse texture,poor organic matter, low capability of man taining fertility,rich potassium and poor phosphorus in Shapoton area at southern edge of Tengger desert.Therefore,in consideration of the amelioration and utilization of the desert,it is key to establish positively shelter belt,form fine earth horizon,ameliorate coarse texture,expand fertilizer source, plant green manure crop and increase soil fertility.