摘要
采集了平顶山采煤塌陷地复垦土壤和塌陷地、正常农田土壤的表层混合样，测试分析了土壤的养分状况，建立了综合肥力评价指标体系，采用模糊数学方法计算了各指标的隶属度。结果显示：复垦11年、6年、4年和2年的土壤综合肥力指数为0．69、0．73、0．65和0．62；用SPSS13．0对复垦土壤的肥力演化进行了回归分析，提出了回归函数模型。为评价煤矿塌陷区复垦地土壤肥力质量水平，提供了定量的科学的方法；为土地复垦的验收，以及复垦地土壤的改良提供科学的依据。
The paper takes subsided land in Pingdingshan Coal Mine as an example, surface soil samples of reclaimed land, subsided land and normal cultivated land are collected and determined. The paper sets up indicator system of comprehensive evaluation of soils fertility of reclaimed land. Subordinate functions of e- valuation indexes are calculated by the way of Fuzzy mathematics. The result shows that： the integrated fertility indexes of reclaimed soil are： llyears, 0. 69 ; 6 years, 0. 73; 4 years, 0. 65; 2 years, 0. 62. The curve regression of change tendency of the soil fertility in reclaimed land is made by using SPSS 13. 0. And the regression function is presented. The purpose of the paper is to provide scientific basis for approval and amelioration of soils of reclaimed land, and to take references for studies similar area.
出处
《中国矿业》
北大核心
2011年第4期51-54,共4页
China Mining Magazine
基金
河南省科技厅科技攻关计划项目“煤矿塌陷区复垦地生态农业技术研究”(编号102102310297)
低山丘陵生态环境与生态修复重点实验室资助项目
关键词
复垦土壤
隶属函数
综合肥力评价
回归分析
land reclamation
subordinate function
comprehensive assessment of the soil fertility
regression analysis
