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对青海省沙珠玉高寒区的流动风沙土、半固定风沙土、固定风沙土和地带性土壤淡粟钙土等8个典型剖面进行研究,结果发现:该区风沙土的基本性状,其砂粒含量和粘粒含量分别在80%以上和14%以下,有质机含量低于3.551g·kg-1,全氮、磷和钾含量分别低于0.225,0.917和18.236g·kg-1,阳离子交换量低于2.63mol·kg-1,全盐量和碳酸钙含量分别在0.507和63.07g·kg-1以下。随着风沙土由流动向固定方向发展,理化特性显著改善,肥力不断提高。
Eight typical sections of flowable sandy soil, semi-fixed aeolian sandy soil, fixed aeolian sandy soil and dwarf soil with calcareous soil were studied in Qingzhu jade alpine region of Qinghai Province. The results showed that the basic characters of aeolian sandy soil in this area were sand content And clay content were more than 80% and less than 14% respectively, the content of organic matter was less than 3.551g · kg-1, the content of total nitrogen, phosphorus and potassium was less than 0.225, 0.917 and 18.236g · kg-1, the cation exchange capacity was less than 2.63mol · kg-1, and the total salt and calcium carbonate contents were below 0.507 and 63.07g · kg-1, respectively. With the development of aeolian sandy soil from flowing to fixed direction, the physical and chemical properties have remarkably improved and the fertility has been continuously improved.