【摘要】 在测定分析９６个土壤样品的基础上，结合西藏“一江两河”土壤资源数据集的有关资料，对西藏“一江两河”地区耕种土壤肥力状况进行了研究。结果表明：该地区耕种土壤质地以砂壤土、壤土为主，土壤有机质和土壤阳离子交换量偏低，土壤全氮、全磷、全钾含量绝大部分面积处于较丰或中等水平，而碱解氮、速效磷大部分面积处于缺或较缺水平，４３．１％的耕地面积速效钾含量处于缺或较缺水平。更多还原

【Abstract】 The soil fertility in “One River and Two Streams Areas” in Tibet is determined based on the 96 soil samples and the data of soil resources.The results show that the farming land soil texture is mainly composed of sandy loam soil and loamy soil in this region.The soil organic matter and CEC are lower.The soil total nitrogen,total phosphorus and total potassium are fairly abundant or medium level in most farm land in the region.The soil alkaline nitrogen and quick acting phosphorus are short or relatively short in most farm land in the region.The farm land area that lack or relatively lack quick acting potassium is 43.1% in the region.更多还原