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Eucalyptus mixed forest transformation method dominated by water conservation function

A technology of water conservation and mixed forests, applied in fertilization methods, cultivation, fertilization devices, etc., can solve the problems of rapid recovery of water conservation functions of eucalyptus plantations, loss of forest ecosystem functions and ecological restoration, and threats to the ecological stability of eucalyptus plantations to speed up the restoration of water conservation functions, protect biodiversity, and increase structural complexity

Active Publication Date: 2021-12-03
GUANGXI FORESTRY RES INST
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0002] At present, there are large areas of eucalyptus plantations in southern my country. Structural simplification, soil fertility decline, stand degeneration, lack of understory vegetation diversity, frequent occurrence of pests and diseases and other negative ecological effects are increasingly apparent, resulting in low value of ecological functions of eucalyptus plantations or loss of water conservation functions of plantations, seriously threatening Ecological Stability of Eucalyptus Plantation
[0003] There are methods for improving eucalyptus plantations in the prior art, such as publication number CN 110169298A which discloses a kind of eucalyptus ecological forestry in which timber production and other ecosystem services are coordinated The method is to carry out mixed planting and afforestation of eucalyptus, red cone, Wangtian tree and other precious tree species. Eucalyptus is a short-period management tree species, and the precious tree species is a long-period management tree species. Although this method can maintain the wood production capacity of eucalyptus plantations, due to the lack of long-term tending of precious tree species, as well as clear cutting of eucalyptus and thinning of precious tree species, the survival rate of precious tree species is not high, and the structure of the stand Simple, low biodiversity, large-scale clear-cutting and thinning have great losses to forest ecosystem functions and ecological restoration, and cannot achieve rapid restoration of water conservation functions of eucalyptus plantations

Method used

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  • Eucalyptus mixed forest transformation method dominated by water conservation function
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Effect test

Embodiment 1

[0034] A kind of eucalyptus mixed forest transformation method dominated by water conservation function, comprising the following steps:

[0035] (1) Forest land selection: the soil site conditions of the transformed eucalyptus pure forest are above average, the age is between 4 and 6 years, the individual diameters of the trees are clearly differentiated, and the dominant trees can be clearly distinguished, and the number of dominant trees is 140 per hectare;

[0036] (2) Selective felling of forest trees: keep the eucalyptus trees with good growth, luxuriant branches and leaves, and strong vitality. 40 eucalyptus trees / mu are reserved;

[0037] (3) Site preparation and digging: urge decay on the eucalyptus tree pockets after selective felling, and adopt the method of non-refining mountain for land preparation, retain the residues after selective felling of the forest land, and manually clear weeds, supplemented by the application of herbicides , and then excavate the planti...

Embodiment 2

[0052] A kind of eucalyptus mixed forest transformation method dominated by water conservation function, comprising the following steps:

[0053] (1) Forest land selection: the soil site conditions of the transformed eucalyptus pure forest are above average, the age is between 4 and 6 years, the individual diameters of the trees are clearly differentiated, and the dominant trees can be clearly distinguished, and the number of dominant trees is 120 per hectare;

[0054] (2) Selective felling of forest trees: keep the eucalyptus trees with good growth, luxuriant branches and leaves, and strong vitality. 30 eucalyptus trees / mu;

[0055] (3) Site preparation and digging: urge decay on the eucalyptus tree pockets after selective felling, and adopt the method of non-refining mountain for land preparation, retain the residues after selective felling of the forest land, and at the same time manually clear weeds, supplemented by the application of herbicides , and then excavate the pl...

Embodiment 3

[0070] A kind of eucalyptus mixed forest transformation method dominated by water conservation function, comprising the following steps:

[0071] (1) Forest land selection: the soil site conditions of the transformed eucalyptus pure forest are above average, the age is between 4 and 6 years, the individual diameters of the trees are clearly differentiated, and the dominant trees can be clearly distinguished, and the number of dominant trees is 150 per hectare;

[0072] (2) Selective felling of forest trees: keep the eucalyptus trees with good growth, luxuriant branches and leaves, and strong vitality. 45 eucalyptus trees / mu;

[0073] (3) Site preparation and digging: urge decay on the eucalyptus tree pockets after selective felling, and adopt the method of non-refining mountain for land preparation, retain the residues after selective felling of the forest land, and at the same time manually clear weeds, supplemented by the application of herbicides , and then excavate the pl...

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Abstract

The invention provides a eucalyptus mixed forest transformation method dominated by a water conservation function, and belongs to the technical field of ecological restoration. The method comprises the following technical steps of forest land selection, forest selective cutting, land preparation and hole digging, nursery stock planting, nursery stock tending and forest management. The method can effectively improve the forest stand structure, improve the forest stand soil, effectively increase the forest stand volume, promote the natural renewal of the forest stand, increase the structural complexity of the forest stand, protect the diversity of vegetation under the forest, promote the diversity composition of the environment under the forest and the soil and the natural recovery of the food network relationship, and accelerate the recovery of the water conservation function of the eucalyptus artificial forest, the cost is low, and the effect is high.

Description

technical field [0001] The invention belongs to the technical field of ecological restoration, and in particular relates to a method for transforming eucalyptus mixed forests mainly based on the water conservation function. Background technique [0002] At present, there are a large area of ​​eucalyptus plantations in southern my country. With the expansion of eucalyptus plantation area, the increase of management intensity and the simplification of stand structure, soil fertility declines, stand degradation and understory vegetation are diverse. Negative ecological effects such as lack of sex, occasional occurrence of diseases and insect pests and other ecological negative effects are increasingly appearing, resulting in low value of ecological function of eucalyptus plantation or loss of water conservation function of plantation, which seriously threatens the ecological stability of eucalyptus plantation. [0003] In the prior art, there are methods for transforming eucalyp...

Claims

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Application Information

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IPC IPC(8): A01G17/00A01C21/00
CPCA01G17/005A01C21/005Y02A40/22Y02P60/40
Inventor 宋贤冲唐健覃祚玉石媛媛赵隽宇曹继钊王会利覃其云邓小军潘波蒋湖波黄凌志甘福丁
Owner GUANGXI FORESTRY RES INST
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