[1]HUANG Rong,WANG Hui,WANG Hui,et al.Effect of Low-Efficient Shelterbelt Improvement on Forest Soil Water Storage Capacity in Huajialing[J].Research of Soil and Water Conservation,2014,21(02):53-57.
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Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume:
21
Number of periods:
2014 02
Page number:
53-57
Column:
Public date:
2014-04-28
- Title:
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Effect of Low-Efficient Shelterbelt Improvement on Forest Soil Water Storage Capacity in Huajialing
- Author(s):
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HUANG Rong1, WANG Hui' target="_blank" rel="external"> WANG Hui1, WANG Hui' target="_blank" rel="external"> WANG Hui1, DONG Jian-gang2, ZHAO He-ran1, DUAN Ya-nan1
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1. College of Forestry, Gansu Agricultural University, Lanzhou 730070, China;
2. Huajialing Forestry Station of Dingxi, Dingxi, Gansu 743000, China
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- Keywords:
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Huajialing; shelterbelt; soil water storage capacity
- CLC:
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S714.7
- DOI:
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- Abstract:
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In order to discuss the effect of low-efficient shelterbelt improvement on forest soil water storage capacity, the soil physical properties and water storage capacity were studied by choosing low-efficient P. hopeiensis pure forest which grew poorly and P. asperata pure forest, P. asperata×P. hopeiensis, P. asperata×P. tabulaeformis and P. asperata×L. prncipis-rupprechtii which were improved forests in Huajialing. The results showed that: (1) soil water content sof 5 forest types all decreased gradually with the increase of soil depth in 0—100 cm layer, the soil average water contents followed the order of P. asperata pure forest (25.10%) > P. asperata×Populus(24.13%) > P.asperata×P.tabulaeformis(21.80%) > P. asperata×L. prncipis-rupprechtii (21.42%) > P. hopeiensis pure forest(18.20%); (2) non-capillary water, capillary water and total water of soil in P. asperata pure forest and its mixed forests in 0~40cm layer were all higher than Populus pure forest. Compared with Populus pure forest, the capillary impoundage of P. asperata pure forest, P.asperata×P.hopeiensis forest, P.asperata×P. tabulaeformis forest and P. asperata×L.prncipis-rupprechtii forest increased by 15.96%, 6.65%, 17.89% and 10.83% in subsoil(20—40 cm), repectively, and their total water storage increased by 14.33%, 13.78%, 19.57%, 16.28%, repectively; (3) the correlations between soil water content, total water storage and soil bulk density of soil in P. asperata pure forest and its mixed forests were better than those in P. hopeiensis pure forest. Low-efficient P. hopeiensis forest improvement has positive effect on promoting forest soil water-holding capacity in loess hilly-gully region.