伊犁河谷不同土地利用方式下土壤质量评价

Soil quality evaluation of different land use in Yili River Valley

以伊犁河谷的土壤作为研究对象,对不同土地利用方式的土壤的物理化学和生物学指标进行测定.结果表明,不同土地利用方式下0~20cm土层的7个指标均有显著差异(P<0.05);酶活性之间存在着显著正相关关系;土壤质量评价分值为耕地>林地>果园地>荒地>草地;土壤质量分级是:一级为林地,二级为耕地,三级为荒地,四级为果园地和草地.由此可知,不同土地利用方式对土壤的质量有明显影响.

Taking the soil of Yili River Valley as the research object, the physical chemistry and biological indicators of different land use patterns were determined. Results show that： there were significant differences in the 7 indexes of 0-20 cm soil layer under different land use patterns（P〈0. 05） ; there was a significant positive correlation between enzyme activities; the value of soil quality assessment is cultivated land〉forest land〉orchard land〉wasteland〉grassland; the quality of the soil is classified as the forest land, the two level is the arable land, the three is the barren land, the four is the orchard land and grassland. It can be known that the different land use patterns have obvious influence on the quality of the soil.