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| Influence of different vegetation types on soil and water conservation function and nutrients loss in the Hilly-gully region of Loess Plateau |
| Zhao Hubing1,Liu Guobin1,2,Cao Qingyu1,2 |
| 1.College of Resources and Environment,Northwest A & F University;2.Institute of Soil and Water Conservation,CAS: 712100,Yangling,Shaanxi,China |
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Abstract The plot experiment of 10 vegetation types including 3 grass,3 shrub,3 arbor,and 1 farmland was carried out at Ansai Soil and Water Conservation Research Station in Hilly-gully region of Loess Plateau.Runoff and soil erosion data were observed.Runoff and nutrients content of sediment were analyzed in order to know the influence of different vegetation types on soil and water conservation function and nutrients loss.The obtained results show that the grass,shrub,and arbor vegetation types have much better soil and water conservation function comparing with farmland.The grass,shrub,and arbor have much less runoff and nutrient loss comparing with farmland.So the grass,and arbor vegetation should be rehabilitated and developed quickly in order to decrease soil erosion in Hilly-gully region of Loess Plateau,and then decrease soil nutrients loss.
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Received: 29 June 2007
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