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Post-fire recovery method for cold temperate zone grass type Xing'an larch forest burned area

A technology for burning burned areas and revitalizing fallen leaves, applied in forestry, application, agriculture, etc., can solve problems such as the inability to meet the ecological restoration project construction of large-scale burned areas, the lack of post-fire restoration mode and technology, and achieve rapid restoration of original functions, The effect of promoting positive succession

Inactive Publication Date: 2014-09-24
INST OF FOREST ECOLOGY ENVIRONMENT & PROTECTION CHINESE ACAD OF FORESTRY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there is a lack of detailed and systematic post-fire restoration models and technologies for this type of forest, which cannot meet the needs of ecological restoration projects for large-scale burned areas.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0072] Examples of recovery of seed sources available for light / medium fire sites

[0073] The implementation site of this embodiment is located in Daxinganling Songling Forestry Bureau, and the implementation year is 2011.

[0074] (1) Investigation of the burned area:

[0075] Determine the exact time of the forest fire:

[0076] The exact time of the forest fire was determined by searching the forest fire files as June 2006. Determine the damage level of the burned area:

[0077] 19% of the standing trees were slightly damaged and burned.

[0078] Determine the status of the forest before the fire:

[0079] By searching historical files and the remaining larch in the burned area, it was determined that the forest was divided into

[0080] The mature forest has begun to bear fruit in large quantities; the average diameter at breast height of the female larch trees in the burnt area is 23cm. Determine whether the larch mother trees on the burned site can provide sufficient source for si...

Embodiment 2

[0111] Examples of recovery by manual seeding where seed sources cannot be provided in light / medium fire sites

[0112] The implementation site of this embodiment is located in the Hanjiayuanzi Forestry Bureau of Daxinganling, and the implementation year is 2011.

[0113] (1) Investigation of the burned area:

[0114] Determine the exact time of the forest fire:

[0115] Check the forest fire files to determine the exact time of the forest fire as May 2006; determine the damage level of the fire site:

[0116] 19% of the standing timbers were slightly damaged and burnt;

[0117] Determine the status of the forest before the fire:

[0118] Through searching historical files and the remaining larch in the burned area, it was found that the pre-fire forest was divided into middle and young

[0119] The average diameter at breast height of the mother tree of larch is 11cm, and it is not yet fruitful.

[0120] Determine whether the larch mother trees on the burned site can provide sufficient sou...

Embodiment 3

[0150] Examples of artificial seedling restoration where seed sources cannot be provided in light / medium fire sites

[0151] The implementation site of this embodiment is located in the Hanjiayuanzi Forestry Bureau of Daxinganling, and the implementation year is 2012.

[0152] (1) Investigation of the burned area:

[0153] Determine the exact time of the forest fire:

[0154] Check the forest fire files to determine the exact time of the forest fire as May 2006; determine the damage level of the fire site:

[0155] 19% of the standing trees damaged were slightly damaged and burned; determine the status of the forest before the fire:

[0156] By searching historical archives and the remaining larch in the burned area, it was found that the pre-fire forest was divided into young and middle-aged forests, with an average diameter of 11cm at breast height of the mother larch trees, which had not yet grown in large numbers.

[0157] Determine whether the larch mother trees on the burned site ca...

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Abstract

The invention provides a post-fire recovery method for a cold temperate zone grass type Xing'an larch forest burned area, and aims to put forward a detailed and systematic post-fire recovery method specific to burned areas of the grass type Xing'an larch forests in various damage extents. According to the recovery method for the cold temperate zone grass type Xing'an larch forest burned area in various conditions, through a burned area survey, the exact time of the forest fire, the damaged level of the burned area, the forest stand forest stand before the fire, the condition that whether larch seed trees in the burned area can provide sufficient provenances for area renewal or not, the site condition survey of the burned area and renewed plant investigation of the burned area can be determined, through the judge of seed year, different damage levels can be determined, and whether larch can provide sufficient provenances for area renewal or not can be determined, so that a technical support for large area burned area ecological restoration engineering construction is provided.

Description

Technical field [0001] The present invention relates to the technical field of ecological restoration, in particular to a method for recovering after a fire in a cold-temperate grass-like Larix gmelini forest. Background technique [0002] The cold-temperate coniferous forest in northeastern China is the southernmost part of the Eurasian coniferous forest region that traverses the northern part of Eurasia. It belongs to the southern part of the southern bright coniferous forest of East and West Asia. This area is one of the main timber forest bases in my country, with a forest vegetation coverage rate of over 70%. Larix gmelini is the dominant tree species in this area. [0003] Larix gmelini has a wide range of adaptations. It can grow into forests in arid and barren gravel mountains and wet swamps. Its root system has strong plasticity. It can not only form a developed root system on deep and fertile soil, and grow into a straight and tall forest, but also can form a superficia...

Claims

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Application Information

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IPC IPC(8): A01G23/00
Inventor 赵凤君舒立福王立中周俊亮杨光田晓瑞王明玉高仲亮
Owner INST OF FOREST ECOLOGY ENVIRONMENT & PROTECTION CHINESE ACAD OF FORESTRY
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