| Slope soil moisture environment of acacia-forestland of the Loess Plateau |
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| DOI：10.7606/j.issn.1000-7601.2008.04.06 |
| Key Words: acacia-forest loess plateau soil moisture |
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| Abstract: |
| Based on the measurement of soil moisture in different depths for slope acacia-forestland and slope farmland of Chunhua County Yan’an Prefecture and Mizhi County of Shaanxi Province in China’a Loess Plateau the soil moisture environment characters for slope acacia-forestland is analyzed subsequently．The results show that the soil moisture content of slope forestland is less than slope-farmland from 8．5％， 31．2％ to 34．2％ separately in Chunhua Yan’an and Mizhi．The results indicate that the soil moisture content of Chunhua is little higher than Yan’an and Mizhi．With the increase of stand density and age slope soil moisture content gets lower．Also the soil moisture of shadow side is obviously higher than that of the sunny side．Only the soil moisture in 0～40 cm depth from the soil surface should be influenced and fluctuated by the precipitation in the satiation of a continual drought season while the 100～200 cm depth soil moisture under soil surface takes on a successive depletion and the depth can not be influenced. |