生态与农村环境学报2018，Vol.34Issue(1)：74-80,7.DOI:10.11934/j.issn.1673-4831.2018.01.009
大柳塔矿区农田砂壤土含水率对土壤紧实度的影响及模型研究
Effect of Moisture Content on Compactness of Sandy Loam Soil of Farmland in Daliuta Mine and Modelling
摘要
Abstract
Farmlands of sandy loam soil in the Daliuta mining in Shaanxi Province was chosen as object of the study. Soil compactness and moisture content was measured in situ for statistical analysis and linear fitting, and furthermore, for com-parative analysis in combination with four semi-empirical models in simulation and prediction. Results show that soil at the early harvesting stage was the lowest in compactness, and the highest in soil moisture content;Planting of mung bean re-duced soil compactness fairly;soil moisture content in the range of 8. 30％-16. 14％ was linearly and negatively related to soil compactness;The linear model and the four semi-empirical models all fitted well in Area B ( corn) , with correlation coefficients being all higher than 0. 7;Among the models, the Ayers model performed the best in prediction, which means that the model can be used to predict soil conditions of the semi-arid mining areas.关键词
土壤紧实度/土壤含水率/相关关系/模型预测Key words
soil compaction/moisture content/correlation/model prediction分类
农业科技引用本文复制引用
陈秀琴,杜国强,杨德军..大柳塔矿区农田砂壤土含水率对土壤紧实度的影响及模型研究[J].生态与农村环境学报,2018,34(1):74-80,7.基金项目
江苏省普通高校专业学位研究生创新计划( SJZZ16-0281) （ SJZZ16-0281）
西部重点矿区土地退化因素调查项目(2014FY110800) （2014FY110800）
国家自然科学基金重点项目( U1361214) （ U1361214）
国家重点基础研究发展计划(2013CB227904) （2013CB227904）
