玉米形态指标对黄河泥沙充填复垦覆土厚度的响应  

Response of Maize Morphological Indicators to Different Thickness of Covered Soil on Yellow River Sediment

作　　者：邵芳[1] 胡振琪[1] 樊廷立 李星宇[1] 

机构地区：[1]中国矿业大学(北京)土地复垦与生态重建研究所,北京100083

出　　处：《煤炭技术》2016年第12期10-11,共2页Coal Technology

基　　金：国家"十二五"科技支撑计划课题(2012BAC04B03)

摘　　要：本研究选择当地的表土、心土和黄河泥沙为研究对象,设置不同厚度覆土处理持续监测玉米的形态指标(株高、基径、叶面积)。试验结果表明:覆土不小于70 cm的处理(表土至少30cm)生长前期以径粗生长为主,后期株高、叶面积逐渐发育,玉米径粗较粗,株高叶面积发育良好,有利于植株的生长。同时考虑引黄河泥沙充填复垦技术施工土方量较少的原则,70 cm(表土至少30 cm)厚度是能保证玉米正常生长的最薄覆土厚度。In order to research the optimal thickness, the simples of topsoil, subsoil and Yellow River sediment of the research area were collected to analysis. Plant height, stem diameter and leaves areas of different thickness of soil cover on sediment were monitored during the growth of crops. The study result shown that stem diameter was the mainly growth part in early period of maize growth in 70 cm soil cover sediment, and then the plant height, leaf areas were growth. Therefore, the corn plants have a thick stem diameter, high plant height and large leaves areas. Considering the cost of different thickness of covered soil, 70 cm was the best thickness.

关 键 词：采煤沉陷 充填复垦 覆土厚度 黄河泥沙 

分 类 号：TD88[矿业工程—矿山开采] S156[农业科学—土壤学]