Forest vegetation degrading level evaluation method

A technology for grade evaluation and forest land, applied in afforestation, forestry, climate change adaptation, etc., can solve the problems of inconvenient application and large scale range of evaluation methods for forest vegetation degradation, save replanting costs, improve afforestation survival rate, significantly Social and economic benefits

Active Publication Date: 2012-05-02
山西省林业科学研究院
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Problems solved by technology

[0003] The purpose of the present invention is to solve the problem that the existing evaluation method of forest vegetation degradation has a large scale range and many inconveniences in application.

Method used

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  • Forest vegetation degrading level evaluation method
  • Forest vegetation degrading level evaluation method
  • Forest vegetation degrading level evaluation method

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Embodiment Construction

[0027] The specific embodiment of the present invention will be further described in conjunction with the accompanying drawings.

[0028] The present invention selects the Pinus tabulaeformis forest ecosystem in a certain mining area in Taiyuan as the application object, investigates the forest vegetation under three mining intensities, and obtains the degradation levels of the Pinus tabulaeformis forest vegetation under different mining intensities. The specific implementation situation is introduced as follows.

[0029] Before selecting the test site, the mining area was surveyed comprehensively to ensure the representativeness of the selected sample plot. According to the needs of the research, the mining volume per unit area (t / km 2 ) as the standard is divided into three gradients, which are T1 A mine 211,000 t / km 2 , T2 B mine 232,000 t / km 2 , T3 C mine 287,000 t / km 2 , the mining intensity gradually increases from T1 to T3.

[0030] 1. Field investigation metho...

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Abstract

The invention belongs to the technical field of forest vegetation degrading evaluation, and is used for solving the problems of large scale range and inconvenient application of a conventional forest vegetation degrading evaluation method. The forest vegetation degrading level evaluation method comprises the following steps: 1, field investigation: 1.1, stand level degrading, and 1.2, individual plant level degrading investigation; and 2, indoor data processing and degrading level calculation: 2.1, stand level degrading level calculation, 2.2, individual plant level degrading grade calculation, and 2.3, general degrading level evaluation. The evaluation method provided by the invention has the beneficial effects that: by means of application of the evaluation method, the vegetation degrading degree of a construction area is scientifically and quantitatively divided, and different restoring technologies are selected according to the degrading degree, so that the forestation survival rate is comprehensively increased, and seedling after-culture and after-replace cost is saved. By the evaluation method provided by the invention, more remarkable social and economical benefits can be obtained along with comprehensive success of vegetation restoration and forestation construction in various regions.

Description

technical field [0001] The invention belongs to the technical field of forest vegetation degradation evaluation. Background technique [0002] In recent decades, due to the impact of human activities and unfavorable natural factors, vegetation has been destroyed and disappeared on a large scale, resulting in a series of environmental imbalance problems. The global biodiversity is constantly being lost, the ecosystem is gradually degrading, and the local degradation has become quite serious. The natural foundation of human survival and development is under great threat. Since the 1960s, the study of vegetation degradation has received extensive attention. The initial focus was on the succession of shrubland after clearcutting of grassland vegetation under grazing conditions. After the catastrophic flood occurred in my country in 1998, vegetation degradation caused national disasters to forest hydrology. The loss was rare after the founding of the People's Republic of China, ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01G23/00G01N5/04
CPCY02P60/40Y02A40/22
Inventor 李新平赵娟武秀娟常建国梁爱军
Owner 山西省林业科学研究院
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