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本文选择开垦年限约为10年的耕地及自然状态下的荒地作为研究对象,对比分析了开垦对荒漠土壤养分含量以及pH、阳离子交换量的影响。结果表明:荒地开垦为农田后,土壤剖面有机碳、氮、磷、钾含量、CEC、C/N均有不同程度的升高,pH值有所下降;表层土壤受耕作的影响程度大于下层土壤。开垦后土壤0-15cm有机碳增加了359%;全氮增加了367%、全磷增加了47.5%;速效养分也有一定程度的增加,且增加的幅度大于全量。总体来说,耕作活动增加了荒漠土壤养分,在一定程度上改善了土壤质量。
In this paper, cultivated land and natural wasteland of about 10 years of reclamation years were chosen as the research object. The effects of reclamation on soil nutrient content, pH and cation exchange capacity were analyzed comparatively. The results showed that the content of organic carbon, nitrogen, phosphorus, potassium, CEC and C / N in the soil profile increased to some extent after the reclamation of the wasteland into farmland, and the pH value decreased. The influence of topsoil under the tillage was greater than that of the lower soil . Soil reclamation 0-15cm soil organic carbon increased by 359%; total nitrogen increased by 367%, total phosphorus increased by 47.5%; available nutrients also increased to a certain extent, and increased more than the full amount. In general, farming activities increased the soil nutrients in the desert and improved the soil quality to a certain extent.