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[1]LIU Xian-zhao,ZHANG Jing-wei.The Present Management Situation and Analysis of Soil and Water Conservation Forest in Weibei Region[J].Research of Soil and Water Conservation,2013,20(03):257-262.

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The Present Management Situation and Analysis of Soil and Water Conservation Forest in Weibei Region

Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume: 20 Number of periods: 2013 03 Page number: 257-262 Column: Public date: 2013-06-28

Title:: The Present Management Situation and Analysis of Soil and Water Conservation Forest in Weibei Region

Author(s):: LIU Xian-zhao^1,2, ZHANG Jing-wei³; 1. College of Forestry, Beijing Forestry University, Beijing 100083, China;
2. Research Institute of Forest Resource Information Techniques, Chinese Academy of Forestry, Beijing 100091, China;
3. Administration of National Nature Reserve of Hualongshan, Ankang, Shaanxi 725600, China

Keywords:: soil and water conservation forest; soil loss; two-stage sampling; sustainable management

CLC:: S727.22

DOI:: -

Abstract:: The two-stage sampling method was used, the indices of tree growth, diversity, soil relief and expansion index were set up following the ecological benefit assessment scheme and surveyed to study the situation of soil and conservation forest in Weibei region. The results show that the distribution of soil and water conservation forest in this region is imbalanced there are more forests in the west and north than the eastern and southern part of this region. The shelter forest has not yet entered a regeneration period, yet many near-mature forests have the decline appearance on the growth of tree DBH and height. Simple forest structure and shrub layer caused the lower forest diversity. The lack of regeneration blocks the renewable and duplicate of the forest. Moreover, the result of partial correlation shows that the crown density, number of tree, litter and so on have the synthetic action on the soil water holding capacity. All the results show that there are many problems (structure, growth and regeneration) in the soil and water conservation forest. In order to change this situation and realize the target of sustainability, a reasonable forest management design should be carried out.

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