单 位：
内蒙古农业大学生态环境学院;包头市园林局;内蒙古农业大学生态环境学院内蒙古水利勘测设计院
摘 要：
本文以黑岱沟露天矿排土场为研究区,对比分析了不同植被类型土壤有机碳含量、土壤有机碳密度的垂直分布及其与土壤化学性质的关系。结果表明:已复垦样地的土壤有机碳含量均在土壤表层0~10cm最高,随着土层深度的增加,有机碳含量呈波动下降趋势;不同植被类型下土壤有机碳含量从高到低依次为柠条林地(2.62g/kg)>沙棘林地(1.94g/kg)>胡枝子林地(1.87g/kg)。已复垦样地的土壤有机碳含量及碳密度都远大于对照。总体而言,各样地的土壤有机碳密度的变化规律和有机碳含量的变化规律基本一致。各样地的土壤有机碳含量与全氮含量、速效钾含量呈显著正相关关系;与有效磷呈极显著负相关性;而与碱解氮含量、全磷含量无显著相关性。回归分析表明:各样地所选的化学因子与土壤有机碳之间所建立的线性回归方程精度较好,R2均在83%以上。对与土壤有机碳呈显著相关的化学因子进行拟合,得到最佳拟合方程并进行方差分析,F检测结果达到极显著水平,说明方程模型有显著的统计意义。
译 名：
RELATIONSHIP BETWEEN SOIL ORGANIC CARBON DISTRIBUTION AND SOIL CHEMICAL PROPERTIES IN MINING AREA
作 者：
GAO Yining;XU Li;LIN Fengyou;WU Qiang;College of Ecology and Environmental Science,Inner Mongolia Agriculture University;Inner Mongolia survey and design institute of water conservancy;
关键词：
Mine reclamation land;;soil organic carbon;;soil chemical properties
摘 要：
The Heidaigou opencast mine dump as the study area,the vertical distribution of soil organic carbon and soil organic carbon density of different vegetation types was researched,and the correlation of soil organic carbon and soil characteristics was analyzed. Results showed that the soil organic carbon content of the soil was the highest in the soil surface 0- 10 cm,Along with the increase of soil depth,the organic carbon content decreases and the fluctuation of organic carbon content is fluctuating. The contents of organic carbon in soil profiles of different vegetation types were the following Caragana korshinskii forest( 2. 62 g / kg) > Hippophae rhamnoides forest( 1. 94 g / kg) > Lespedeza bicolor forest( 1. 87 g / kg). Soil organic carbon content and carbon density of soil samples were much higher than those of CK. Overall,the change regulation of organic carbon density and organic carbon content was basically the same. The contents of total nitrogen,available potassium and organic carbon content of the soil were significantly correlated,there was no significant correlation between the contents of nitrogen and total phosphorus and the contents of organic carbon in soil. Regression analysis showed that the linear regression equation between the chemical factors and the soil organic carbon was well,R2 of the sample was more than 83%. fitting the chemical factors which was significantly correlated with the soil organic carbon,and Get the best fitting equation and analyze the variance,the results of F test reached a very significant level,which showed significant statistical significance.
