不同种植年限苜蓿地土壤容重及含水量的比较研究  

Comparative Studies on Soil Water Content and Soil Bulk Density of Lucerne with Different Cultivating Ages

作　　者：甄莉娜[1,2] 张英俊[2] 白春生[2,3] 杨俊霞[1] 

机构地区：[1]山西大同大学农学与生命科学学院,辽宁大同037009 [2]中国农业大学草地研究所,北京100193 [3]沈阳农业大学园艺学院,辽宁沈阳110161

出　　处：《现代畜牧兽医》2011年第7期58-59,共2页Modern Journal of Animal Husbandry and Veterinary Medicine

摘　　要：本试验旨在研究两种种植年限紫花苜蓿人工草地对土壤含水量及容重的影响。栽培五年的紫花苜蓿地在0～50cm土层内对土壤容重有较好的降低效果。与一年生苜蓿地相比,五年生苜蓿地可以显著地增加0～30cm土层含水量,并显著地降低0～30cm的土壤容重。This study mainly focused on variation of soil water content and bulk density of Lucerne with two cultivating ages in depth 0～100 cm.Five years old alfalfa had a better effect on reducing soil bulk density in 0～50 cm layers.Compared with the annual alfalfa,five years alfalfa had significantly increased soil moisture content and reduced soil bulk density in 0～30 cm.

关 键 词：紫花苜蓿 土壤含水量 土壤容重 

分 类 号：S152[农业科学—土壤学]