Tending method for improving water conservation capacity of artificial middle-age spruce forest land

A technology of water conservation and spruce, which is applied in the field of forest land management, can solve the problems of poor water conservation capacity of spruce, and achieve the effects of reducing water evaporation, reducing soil erosion, and slowing down surface runoff velocity

Pending Publication Date: 2021-02-09
SICHUAN ACAD OF FORESTRY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Aiming at the above-mentioned prior art, the present invention provides a tending method for improving the water conservat

Method used

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  • Tending method for improving water conservation capacity of artificial middle-age spruce forest land
  • Tending method for improving water conservation capacity of artificial middle-age spruce forest land
  • Tending method for improving water conservation capacity of artificial middle-age spruce forest land

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Embodiment 1

[0024] A kind of tending method for promoting the water conservation ability of spruce artificial middle-aged forest land, comprising the following steps:

[0025] (1) Determination of site conditions: choose to grow on sunny slopes and semi-sunny slopes with an altitude of about 3000m and a slope of less than 25°, with a forest age of about 30 years and a canopy density of 0.8 (> 3000 plants / hm 2 The spruce artificial middle-aged forest above ) is used as tending forest; the soil-forming parent rock of tending forest land is mainly phyllite, slate, dolomite and other residual slope weathered products; the soil type is mountainous brown forest soil, and the soil thickness is greater than 40cm; forest areas with canopy density over 0.8 have excessive stand density, fierce competition, and serious lack of sunlight in the forest.

[0026] (2) Pre-treatment: carry out sanitary felling on the forest land to remove dead and diseased plants.

[0027] (3) Thinning: after sanitary fel...

Embodiment 2

[0032] A kind of tending method for promoting the water conservation ability of spruce artificial middle-aged forest land, comprising the following steps:

[0033] (1) Determination of site conditions: choose to grow on sunny and semi-sunny slopes with an altitude of about 2500m and a slope of less than 25°, with a forest age of about 40 years and a canopy density of 0.8 (> 3000 plants / hm 2 The spruce artificial middle-aged forest above ) is used as tending forest; the soil-forming parent rock of tending forest land is mainly phyllite, slate, dolomite and other residual slope weathered products; the soil type is mountainous brown forest soil, and the soil thickness is greater than 40cm; forest areas with canopy density over 0.8 have excessive stand density, fierce competition, and serious lack of sunlight in the forest.

[0034] (2) Pre-treatment: carry out sanitary felling on the forest land to remove dead and diseased plants.

[0035] (3) Thinning: after sanitary felling, t...

Embodiment 3

[0040] A kind of tending method for promoting the water conservation ability of spruce artificial middle-aged forest land, comprising the following steps:

[0041] (1) Determination of site conditions: choose to grow on sunny and semi-sunny slopes with an altitude of about 3400m and a slope of less than 25°, with a forest age of about 20 years and a canopy density of 0.8 (> 3000 plants / hm 2 The spruce artificial middle-aged forest above ) is used as tending forest; the soil-forming parent rock of tending forest land is mainly phyllite, slate, dolomite and other residual slope weathered products; the soil type is mountainous brown forest soil, and the soil thickness is greater than 40cm; forest areas with canopy density over 0.8 have excessive stand density, fierce competition, and serious lack of sunlight in the forest.

[0042] (2) Pre-treatment: carry out sanitary felling on the forest land to remove dead and diseased plants.

[0043] (3) Thinning: after sanitary felling, t...

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Abstract

The invention discloses a tending method for improving the water conservation capacity of artificial middle-age spruce forest land. The tending method comprises the steps of site condition determination, pretreatment, thinning, pruning, enclosure and the like. According to the method, pruning, thinning and other measures are adopted for tending an artificial middle-age spruce forest with the canopy density being about 0.8, the interference to an ecological system of the artificial middle-age spruce forest is extremely small, the water conservation capacity of the artificial middle-age spruce forest land in a short time is remarkably improved, and the total water holding capacity is increased by 17.46%.

Description

technical field [0001] The invention belongs to the technical field of forest land management, and in particular relates to a tending method for improving the water conservation ability of spruce artificial middle-aged forest land. Background technique [0002] Spruce (Picea asperata), an evergreen tree belonging to Pinaceae, is a unique species in my country. It is produced in the upper reaches of the Minjiang River Basin in Sichuan, the Da and Xiao Jinchuan Basins, the southwestern part of Shaanxi, the eastern part of Gansu, the Bailong River Basin and the Tao River Basin, at an altitude of 2400 ~3600m area, often mixed with purple fruit spruce, Minjiang fir and purple fruit fir, or form a pure forest. Water conservation is one of the main service functions of forest ecosystems. As an important part of water conservation forests in southwestern my country, the original dark coniferous forests in the upper reaches of the Minjiang River, dominated by firs, suffered from long-...

Claims

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Application Information

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IPC IPC(8): A01G17/00A01G7/06A01G23/00
CPCA01G7/06A01G17/005A01G23/00
Inventor 冯秋红刘世荣刘兴良缪宁李旭华徐峥静茹蔡蕾潘红丽李登峰
Owner SICHUAN ACAD OF FORESTRY
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