基于粉煤灰基质充填覆土复垦的最佳覆土厚度  

Optimum soil coverage thickness of reclamation land filled with fly ash

作　　者：徐良骥[1] 许善文[1] 严家平[1] MEUSER Helmut MAKOWSKY Lutz WEISS Eltje MAX Bjorn 

机构地区：[1]安徽理工大学测绘学院,安徽淮南232001 [2]Osnabriick University of Applied Sciences,Osnabriick 24D-49090

出　　处：《煤炭学报》2012年第A02期485-488,共4页Journal of China Coal Society

基　　金：安徽省自然科学基金资助项目(1208085QE91);安徽省国际合作计划资助项目(10080703026)

摘　　要：为研究粉煤灰充填复垦地种植农作物的经济产量达到最优时的最佳覆土厚度,选择淮南上窑粉煤灰场复垦地为研究对象,选取不同厚度覆土(A:<40 cm;B:40～55 cm;C:55～70 cm;D:>70 cm)的地块采样监测冬小麦的经济产量、根长密度、土壤含水量、土壤pH、土壤N,P,K营养元素含量等指标。实验结果表明:有利于冬小麦生长并得到最佳产量的适宜覆土厚度为55～70 cm,其土壤pH为8.15,N,P,K含量分别为6.272,26.253,143.76 mg/kg。综合评价结果表明该地块的表土具有较好的营养能力,土壤质量较好。For research the optimum coversoil thickness of reclamation land,four small lands in Shangyao reclamation field of Huainan mining area were selected to sample and analysis,the coversoil thickness are 40 cm（A）,40-55 cm（B）,55~70 cm（C）,70 cm（D） respectively.The indexes of winter wheat yield,root length density,soil water content,pH value,soil nutrient content of N,P,K were monitored.Results show that the thickness of 55-70 cm is the optimum coversoil thickness,and the pH value is 8.15,soil nutrient content of N,P,K are 6.272,26.253,143.76 mg/kg respectively.Soil quality comprehensive evaluation results show that the coversoil quality of land C is better.

关 键 词：土地复垦 最佳覆土厚度 粉煤灰基质 冬小麦 经济产量 

分 类 号：X171[环境科学与工程—环境科学] S512.11[农业科学—作物学]