Transformation method capable of improving ecological functions of artificial half-mature spruce forests in Minjiang river basin

An ecological function, plantation technology, applied in forestry, afforestation, climate change adaptation, etc., can solve problems such as affecting the growth of trees and stand quality, large afforestation area, and single management methods, and reduce the incidence of bacterial infection. , increase soil moisture, improve the effect of living environment

Inactive Publication Date: 2019-06-14
INST OF FOREST ECOLOGY ENVIRONMENT & PROTECTION CHINESE ACAD OF FORESTRY
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Problems solved by technology

Due to the large area of ​​artificial reforestation in the early stage and the lack of technology, the plantation tree species were single and the tree species were seriously misplaced. Due to the large difference in the initial planting density, the growth was uneven. In terms of quality, although the implementation of the "Natural Forest Resources Protection Project" and the "Converting Farmland to Forest Project" has greatly promoted the management and development of plantation forests, the management technology of large-scale plantation forests in the mountainous areas of western Sichuan is backward and the management methods are single issues have not yet been effectively resolved

Method used

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example 1

[0019] Example 1: A transformation method for improving the ecological function of spruce artificial middle-aged forests in the Minjiang River Basin, including the following steps: Step 1, dividing the artificial middle-aged spruce forests into three types according to the following criteria:

[0020] (1) Canopy-closed artificial forest, canopy density 0.7-1.0, the vegetation coverage on this type of artificial forest is small, shrubs and herbs are sparse, which is conducive to the close contact between seeds and soil, and is beneficial to natural regeneration. Due to the lack of sunlight under the forest, There is also a lack of mother trees, and the number of understory regeneration seedlings and saplings is small;

[0021] (II) Intensive artificial forest, canopy density 0.4-0.6, this type of artificial forest, understory shrub coverage can reach 30%, due to the lack of target tree species mother trees, seedlings and saplings are less, scattered distribution;

[0022] (III)...

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Abstract

The invention discloses a transformation method capable of improving ecological functions of artificial half-mature spruce forests in the Minjiang river basin and relates to the technical field of plant ecological function repair. The method includes the three steps that the artificial half-mature spruce forests are divided according to types, density regulation and forest gap complementary plating are carried out, and complementary planting induction is carried out to promote update. Three to four years later after transformation, the biomass of original forest stand, the biological diversityof an overground part and the water retention and water storage capacity of soil are remarkably improved. The method has the advantages of being high in operability, good in application effect and the like.

Description

technical field [0001] The invention relates to the technical field of ecological restoration, in particular to a transformation method for improving the ecological function of a spruce artificial middle-aged forest in the Minjiang River Basin. Background technique [0002] The mountainous area in western Sichuan is located on the southeastern edge of the Qinghai-Tibet Plateau, and its concentrated distribution area accounts for about 2 / 3 of the forests in Sichuan Province. It is one of the key and hot areas of the Yangtze River in China, and it is the "river source", "climate regulator" and "forest reservoir" in the Yangtze River area of ​​my country. The alpine forest area in western Sichuan is one of the important timber and forest product production bases in my country, and plays a pivotal role in national economic construction and environmental protection. Due to historical reasons, primitive forest felling was serious, resources were depleted day by day, water and soil...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01G17/00A01G23/00
CPCY02A40/22Y02P60/40
Inventor 刘世荣刘兴良缪宁冯秋红
Owner INST OF FOREST ECOLOGY ENVIRONMENT & PROTECTION CHINESE ACAD OF FORESTRY
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