内蒙古达拉特旗土地利用方式对土壤养分的影响

Effects of land use on soil nutrient in Dalad Banner Inner Mongolia

以达拉特旗中部树林召镇、展旦召苏木4种利用类型区的36个土壤剖面,108个样品的分析化验结果为依据,采用逐项对比法研究了土地利用类型对土壤养分含量的影响。结果表明:内蒙古达拉特旗土地利用方式对土壤养分含量影响显著;在垂直方向上,除土壤全量钾及水分含量外(p>0.05),其它元素在每种土地利用方式下土壤剖面土层之间存在显著差异。研究表明该研究区内传统农业区土壤养分保持能力最好,是比较适宜的土地利用方式。

The study area called Shu Lin Zhao town and Zhan Dan Zhao Su Mu were located in the center of Dal- ad Banner. Soil samples in four different forms of land uses were analyzed. The vertical distribution regularities of soil organic matter, total N, P, K and soil water under different land uses were analyzed. The results showed that the different land use patterns had significant effect on soil nutrient in Dalad Qi Plain, Inner Mongolia. In the vertical direction of soil layers, in addition to the total K and water content in soil （ p 〉 0.05 ）, under the same land use, there were significant differences of the elements among different layers. The results showed that traditional agricultural area had the highest soil nutrient - holding capacity and was relatively suitable for Land use best way.