摘要
通过对研究区域11个受不同侵蚀程度的采样点进行剖面采样,采样的深度根据土壤侵蚀程度而定,对土壤样本进行土壤基本理化性质与磁化率测量分析。结果表明:坡顶和坡中土壤基本理化性质随侵蚀强度演变特征存在一定差异,坡中土壤理化性质的变化要较坡顶更为复杂,相比坡顶,坡中受侵蚀程度较严重。不同侵蚀强度土壤与未侵蚀土壤相比较,随着土壤侵蚀强度的增加,只有坡顶土壤中SOM的含量和坡中土壤中TK的含量达到了统计意义上的显著性差异;而土壤中其他的养分含量均未达到显著性差异。另外,只有坡顶草丛植被土壤磁化率含量较高,侵蚀程度较小;坡中,不同植被土壤磁化率含量变化较复杂,因此本研究区不能借助MS来反演紫色土的植被分布与侵蚀强度关系。
Based on the sampling points of 11 different erosion degree in the study area, the depth of the sample was determined by the degree of soil erosion, and the basic physical and chemical properties and magnetic susceptibility of soil samples were analyzed. The results show that the top of the hill and slope in the physical and chemical properties of the soil erosion intensity with different e- volution characteristics, the slope changes in the physicochemical properties of the soil slope is more complex than the top of the hill, the erosion degree is more serious In the slope. Comparison of different soil erosion intensity and soil erosion With the increase of soil erosion intensity, Only the content of SOM in soil slope and the slope of the soil TK content reached a significant difference statis- tically; and other nutrients in the soil did not reach significant differences. In addition, only the top of the hill grass vegetation soil magnetic susceptibility content is higher, the degree of erosion is small. The change of soil magnetic susceptibility in different vegeta- tion is more complicated in the slope, So we can not use the MS to retrieve the vegetation distribution and soil erosion intensity of pur- ple soil.
出处
《内蒙古农业大学学报（自然科学版）》
CAS
2016年第4期66-72,共7页
Journal of Inner Mongolia Agricultural University(Natural Science Edition)
基金
国家级大学生创新实验项目(X201306)
国家自然科学基金项目(41401235)资助
关键词
紫色土
土壤侵蚀
理化性质
差异性
Purple soil
soil erosion
basic soil property
otherness
