中国地质调查2025，Vol.12Issue(2)：60-68,9.DOI:10.19388/j.zgdzdc.2023.293
低山丘陵区土壤厚度空间分布特征与驱动因子分析
Spatial distribution characteristics and driving factors of soil thickness in low-hilly areas:A case study of Oroqen Autonomous Banner
摘要
Abstract
Soil thickness is a fundamental soil characteristic that directly reflects soil development,and it is close-ly related to soil fertility.It is also an important indicator to identify soil fertility.Taking Oroqen Autonomous Ban-ner of Inner Mongolia as the study case,the authors in this paper selected 10 indicators closely related to soil thickness.The principal component analysis of these data were conducted by SPSS 22.0 software,and soil thick-ness digital mapping.method with the characteristic of low cost,rapid acquirability and high precision was probed by ArcGIS 10.7 and GeoDetector.Besides,driving factors of the spatial variation of soil thickness was analyzed.The study reveals that soil thickness in Oroqen Autonomous Banner is distributed thinly in the northwest and thick-ly in the southeast,and the accuracy verification results of the confusion matrix indicates a total accuracy of 74.32%and the kappa coefficient of 0.744,indicating a high level of agreement with the actual situation.The single-factor detection results show that the soil type and the driving factor of soil-forming matrix significantly influence the spatial distribution variability of local soil thickness.The results of the interacting factor detection show that the q-value(0.58)of the terrain humidity index ∩ runoff intensity coefficient is larger than the q-value(0.47)of the terrain humidity index+runoff intensity coefficient,indicating a non-linearly enhance-ment.And the other factors show two-factor enhancement.This suggests that the effect of multifactor interaction on the local spatial distribution of soil thickness is greater than that of a single factor.This study could provide sci-entific basis for the sustainable development of local agriculture,returning ploughland to forests,planting suitabil-ity,and spatial planning of the national territory.关键词
主成分分析/土壤厚度/鄂伦春自治旗/地理探测器/低山丘陵区Key words
principal component analysis/soil thickness/Oroqen Autonomous Banner/geodetector/low-hilly area分类
地理科学引用本文复制引用
邰苏日嘎拉,王永亮,陈国栋,李永春,杜雨春子,苟鹏飞..低山丘陵区土壤厚度空间分布特征与驱动因子分析[J].中国地质调查,2025,12(2):60-68,9.基金项目
中国地质调查局"松嫩平原北缘鄂伦春地区黑土地地表基质调查(编号:DD20220860)"项目资助. （编号:DD20220860）
