兰州新区黄土工程开挖边坡植被重建初期土壤水分初步研究
刘乐, 孙宏义, 蔡忠兰, 张建新, 李东泽

Preliminary study on the soil moisture of slopes of loess in Lanzhou New Area formed by engineering excavation in the early stage of revegetation
Le LIU, Hongyi SUN, Zhonglan CAI, Jianxin ZHANG, Dongze LI
表5 原状坡样地土壤水分垂直分层
Table 5 Vertical stratification of soil moisture in the sample plot on original slope
土层深度/cm第14 d第23 d第32 d第41 ~ 104 d
变异系数活跃等级变异系数活跃等级变异系数活跃等级变异系数活跃等级
0 ~ 20.278活跃层0.408速变层0.437速变层0.628速变层
2 ~ 100.145次活跃0.246活跃层0.356速变层0.327速变层
10 ~ 200.087稳定层0.080稳定层0.141次活跃0.265活跃层
20 ~ 300.058稳定层0.047稳定层0.084稳定层0.175次活跃
30 ~ 400.096稳定层0.080稳定层0.061稳定层0.118次活跃
40 ~ 500.052稳定层0.063稳定层0.046稳定层0.081稳定层