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The Vertical Arrangement Method of Shelterbelt System

A configuration method and shelterbelt technology, applied in forestry, application, agriculture, etc., can solve problems such as vertical configuration of difficult shelterbelt systems

Inactive Publication Date: 2011-12-21
BEIJING FORESTRY UNIVERSITY
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  • Summary
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  • Description
  • Claims
  • Application Information

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Problems solved by technology

This method is relatively empirical, and it is difficult to rationally carry out the vertical configuration of the shelterbelt system

Method used

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  • The Vertical Arrangement Method of Shelterbelt System
  • The Vertical Arrangement Method of Shelterbelt System
  • The Vertical Arrangement Method of Shelterbelt System

Examples

Experimental program
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Embodiment

[0050] The example of this case takes the arbor layer in the shelterbelt system as an example, and tries to divide the arbor species into 2, 3, 4, 5, and 6 groups. When divided into 2, 3, and 4 groups, the dissimilarity of the clustering results is not large; when divided into 6 groups, it is too scattered; and when divided into 5 groups, the dissimilarity Therefore, the arbor tree species are finally divided into 5 groups on the comprehensive variable (which can be obtained by summing up various environmental factors).

[0051] As shown in Table 1, species were divided into five groups in terms of comprehensive variables. However, for the environmental threshold value of the comprehensive variable classification, it is necessary to list the environmental values ​​of the sample plots of tree species distribution in each group, and find the union of each environmental value. The maximum and minimum values ​​of the final environmental values ​​are the environmental thresholds o...

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Abstract

The invention discloses a vertical configuration method for a protection forest system, relating to the technical field of vertical configuration of forestry. The method comprises the following steps of: S1, carrying out cluster analysis on candidate grouping species according to the distribution situation of vegetation in a region to be configured; and S2, determining the vertical configuration of the protection forest system of the region according to the result of the cluster analysis of the step S1. According to the vertical configuration method for the protection forest system, disclosedby the invention, the k- mean value cluster analysis is carried out on the candidate grouping species according to the distribution situation of the vegetation in the region, the candidate species are divided into 3-5 clusters on any one environmental factor gradient, and optimal distributed species are selected according to the distribution characteristics of each group, thus the vertical configuration of the protection forest system of the region is determined, and the vertical configuration of the protection forest system of the region can be reasonably determined.

Description

technical field [0001] The invention relates to the technical field of vertical arrangement of forestry, in particular to a method for vertical arrangement of a shelterbelt system. Background technique [0002] The vertical configuration of the shelterbelt system is the key to the construction of the shelterbelt system. It is not only related to the formation, productivity and economic benefits of shelterbelts, but also affects the structure, stability and protective benefits of shelterbelt systems. In order to give full play to the role of shelterbelts in conserving water and maintaining water and soil effects, it is necessary to create a multi-species, multi-level heterogeneous mixed forest structure that combines arbors, shrubs, and grasses. In mountainous areas where human activities are frequent and soil erosion is serious, it is necessary to close mountains for forestry, irrigation, and grass cultivation to improve forest stands to form a multi-level structure, thereb...

Claims

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Application Information

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IPC IPC(8): A01G23/00
Inventor 余新晓陈丽华贾国栋李轶涛吴海龙牛健植樊登星信忠保
Owner BEIJING FORESTRY UNIVERSITY