山西农谷土壤养分空间特征分布研究  

Study on Spatial Distribution Characteristics of Soil Nutrients in Shanxi Agricultural Valley

作　　者：刘立文[1] 徐立帅[1] 段永红[1] 周淑琴[1] 秦明星[1] 王帅 LIU Liwen;XU Lishuai;DUAN Yonghong;ZHOU Shuqin;QIN Mingxing;WANG Shuai(College of Resources and Environment,Shanxi Agricultural University,National Experimental Teaching DemonstrationCenter for Agricultural Resources and Environment in Shanxi Agricultural University,Taigu 030801,China)

机构地区：[1]山西农业大学资源环境学院山西农业大学农业资源与环境国家级实验教学示范中心,山西太谷030801

出　　处：《山西农业科学》2018年第11期1882-1886,共5页Journal of Shanxi Agricultural Sciences

基　　金：山西农业大学科技创新基金项目(20142-22);山西省软科学研究计划项目(2016041036-2)

摘　　要：以山西省耕地质量及生产能力调查评价数据为基础,采用Kriging插值方法,以山西省太谷县为研究区域,分析了表层土壤有机质、全氮、全磷以及全钾的空间分布特征及其在不同地形因子下的分布特征。结果表明,从研究区土壤养分含量等级上来看,有机质主要位于中等偏低水平,全氮位于较低水平,全磷位于偏低水平,全钾位于中等水平;从分布位置上来看,有机质和全磷含量在西北部高于东南部,全钾含量高的地区位于东南部和北部;从海拔和坡度因子等地形因子上看,全钾与地形因子呈正相关,有机质、全氮和全磷与地形因子则呈负相关,其中,全氮的变化趋势不明显。Based on the data of investigation and evaluation of cultivated land quality and production capacity in Shanxi provinceand selected Taigu county, Shanxi province as the research area, the paper used Kriging interpolation and topographic method to analyzedistribution of the surface soil organic matter, total nitrogen, total phosphorus and total potassium. The result showed that the organicmatter was mainly located at the middle low level, the total nitrogen and total phosphoruslevel was lower, and the total potassium level wasin the middle level. In terms of distribution, the contents of organic matter and total phosphorus were higher in the northwest than in thesoutheast, and the areas with high total potassium content were mainly located in the southeast and the north. From topographic factorssuch as elevation and slope factors, total potassium was positively correlated with topographic factors, organic matter, total nitrogen andtotal phosphorus were negatively correlated, and the trend of total nitrogen was not obvious.

关 键 词：土壤养分 空间变异 地形因子 山西农谷 

分 类 号：S153[农业科学—土壤学]