祁连山森林草原带土壤属性和植被生物量对坡向和坡位的响应 |
张梦旭, 刘蔚, 朱猛, 秦燕燕, 李若麟 |
Responses of soil properties and vegetation biomass to slope aspect and position in forest-steppe zone of the Qilian Mountains |
Mengxu ZHANG, Wei LIU, Meng ZHU, Yanyan QIN, Ruolin LI |
图3 坡面0~60 cm土壤属性分布:不同小写字母表示同一坡向,不同坡位均值差异显著;不同大写字母表示同一坡位,不同坡向均值差异显著(P<0.05) |
Fig.3 Patterns of soil properties at the depth of 0~60 cm on the south slope, southwest slope, west slope, north slope, top and valley for bulk density (first 0~10 cm) (a), soil water content (b), clay, silt and sand content (c), organic carbon (d), total nitrogen content (e) and total phosphorus content (f), on the top (white bar), the middle (gray bar) and the bottom (black bar) of the slope (Statistically different mean values between slope positions on the same aspect are indicated with different lowercase letters, and between aspect at the same slope position are indicated with different uppercase letters (P<0.05)) |
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