新疆伊犁新垦区土壤磁化率特征分析

摘要

It is analyzed the Soil magnetic susceptibility features and the relationship with SOM and soil particle size under several different land uses in Yili, Xinjiang. The results show that the soil profile magnetic susceptibility under the different land - uses have distinct differences. Compared to the farmland （ several oil sunflowers lands） and the ar- id grassland, the soil magnetic susceptibility is obviously low in the poplar forest land, the grassland beside the tree belt of the farmland and the apricot land. The soil magnetic susceptibility has negative correlation with SOM ,soil clay particle content and powder particle content, and the correlation coefficient varies corresponding to the different land - use. The soil magnetic susceptibility has the positive correlation with the soil sand organic matter and grains ＂content. It presents better positive correlation with the soil xfd and SOM ,soil clay fraction with some individual reaches to the significant level. The soil xfd has better negative correlation with sand grains content, and appears no clear positive corre- lation with soil powder particle content.%对新疆伊犁新垦区几种不同土地利用方式下土壤磁化率参数及其与土壤有机质、粒度特征关系进行分析，结果表明：不同土地利用方式下土壤剖面的质量磁化率差异明显，杨树林地、农田林带边荒草地、杏林地与农田（几种油葵地）和干旱草场相比，土壤质量磁化率明显偏低；土壤质量磁化率与土壤有机质、粘粒、粉粒含量成负相关，不同土地利用方式相关系数差别较大，与土壤沙粒含量大多呈较好正相关。土壤频率磁化率与有机质、粘粒含量呈现较好正相关，个别达到极显著水平，与土壤粉粒含量呈不明显正相关；与土壤沙粒含量呈较好负相关。