不同植被类型矿区复垦土壤水分变化特征

采用烘干法测定黑岱沟露天矿复垦区不同植被5个层次土壤含水量,计算土壤水分总储量。运用SAS9.0进行ANOVA和Cluster分析。结果表明:在2006年,各种混交种植土壤含水量都较高,15 a的沙棘+杨柳,10a山杏+沙棘,2 a紫穗槐+丁香+油松,分别比裸耕地提高了48.7%、45.6%和32.3%。单植相对混交种植土壤储水量有所降低,2 a红花槐,2 a欧李和5 a苜蓿的土壤储水量分别比裸耕地降低2.6%、2.8%和9.9%。运用最短距离法对土壤储水量进行聚类分析,结论为复合模式种植沙棘、苜蓿和山杏适宜于矿区复垦。

Effects of different vegetations on soil weight moisture of reclaimed land in mining areas

In Heidaigou Mining Area of Inner Mongolia,we adopted drying method to measure soil weight moisture of reclaimed land with different vegetations to calculate soil water storage.Based on the above data,we also used SAS9.0 for ANOVA and CLASSIFY analysis.The results showed that: the soil with mixed vegetations had higher soil weight moisture,15 a Hippophae hymnodies + willow was the highest,and soil water storage capacity of vegetations was followed by 10 a Siberian Apricot + Hippophae hymnodies and 2 a Amorp...