Method for measuring forest disturbance degree

A measurement method and technology of interference degree, applied in the field of forest measurement, can solve the problem of lack of evaluation of forest interference degree, and achieve the effect of easy operation and flexible selection of indicators

Inactive Publication Date: 2010-01-13
SHENYANG INST OF APPLIED ECOLOGY - CHINESE ACAD OF SCI
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  • Abstract
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Problems solved by technology

[0005] In order to solve the problem of lacking the evaluation of forest disturbance degree in the prior art, the technical problem to be solved by the present invention is to provide a kind of measurement method for evaluating the existing forest disturbance degree, i.e. forest disturbance degree

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  • Method for measuring forest disturbance degree
  • Method for measuring forest disturbance degree
  • Method for measuring forest disturbance degree

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Embodiment Construction

[0024] (1) Forest disturbance degree

[0025] The forest disturbance degree described in the inventive method refers to: the distance degree of existing forest and target forest (zonal peak forest vegetation or disturbance front forest etc.) after disturbance, by carrying out qualitative and quantitative analysis to multiple indexes, evaluation The degree of impact of disturbance on the forest does not reflect the type, intensity, nature and other factors of the disturbance, but only reflects the gap between the actual forest and the target forest after disturbance.

[0026] The method of the invention comprehensively reflects the degree of influence of interference on the existing forest by evaluating the difference in corresponding indicators between the existing forest after disturbance and the target forest (forest before disturbance, zonal climax forest or virgin forest). The inventive method comprises the following steps:

[0027] 1. Select the appropriate target forest...

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Abstract

The invention relates to a method for measuring forest disturbance degree, which is characterized by comprising the following steps: defining target forest as pre-disturbance forest, potential forest cover or zonality forest; establishing a forest disturbance degree evaluating indicator system, and determining the specific evaluating indicator or a relative value; and applying a forest disturbance degree computing formula to evaluate the disturbance degree of the existing forests. The method achieves the quantitive evaluation of the forest disturbance degree, provides a specific method for researching the forest disturbance degree in the future, is not restricted by areas, forest types and disturbance types, has flexible choice indicators, can evaluate the disturbance degree of the existing forests with treatments in accordance with local conditions, and is easy to operate.

Description

technical field [0001] The invention relates to forest measurement technology in the technical field of forestry and ecology, specifically a method for evaluating the degree of impact of various disturbances on forests, that is, the degree of forest disturbance. Background technique [0002] Forests are an important part of terrestrial ecosystems, and are subject to various forms of disturbances such as over-cutting, fires, pests and rodents, acid rain, and meteorological disasters every year. These disturbances pose a great threat to the health of forest ecosystems . With the intensification of disturbance, the ecological community has paid more attention to the disturbance status of existing forest ecosystems in recent years. [0003] The impact of disturbance on forest ecosystem is mainly reflected in the influence of disturbance on forest regeneration and succession, the impact on forest ecosystem stability, ecosystem diversity and individual level diversity. At presen...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01G23/00
CPCY02A90/40
Inventor 于立忠朱教君
Owner SHENYANG INST OF APPLIED ECOLOGY - CHINESE ACAD OF SCI
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