陕北农牧交错带不同人工植被下的土壤质量研究

Study on the Soil Quality in Agriculture and Animal Interlace Zone Under the Different Artificial Vegetations

以陕北农牧交错带为研究对象,通过对不同人工植被下的土壤机械组成、土壤养分、土壤微生物、土壤酶活性的变化进行分析,得到不同植被对土壤质量的影响结果。结果表明:随着人工植被的建立与生长,土壤质量总体趋于好转,但不同样地随着植被盖度和植被种类的不同,土壤质量差异很大;多年生乔木林改良土壤质量的潜力最高,耕作粗放的农地土壤质量有所下降。

Based on the study of soil mechanical composition,soil fertility,soil microorganism and soil enzyme activities'changes in the agriculture and animal interlace zone of Northern Shaanxi.The result shows that:the soil quality grows with the planting and growing of artificial vegetations,but they have great differences as every plot has the different vegetations in coverage and types.Many years living woodland has the best ability to improve the soil quality while the cultivated land in bad technology has a lower soil quality.