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Vegetation ecological restoration method for Sichuan-west dry-warm valley barren slope land

A technology for ecological restoration and vegetation, applied in the fields of soil preparation, climate change adaptation, agricultural machinery and implements, etc., can solve the problems that are difficult to adapt to the restoration of vegetation in the dry and warm valley of Dadu River, and achieve the improvement of soil environment quality, shrub The effect of enhancing ecological functions such as water and soil conservation and increasing the content of soil organic matter

Inactive Publication Date: 2020-04-10
INST OF MOUNTAIN HAZARDS & ENVIRONMENT CHINESE ACADEMY OF SCI
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  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the differences in climate, vegetation, and soil in dry and warm valleys in different watersheds, the seed formula is difficult to adapt to the vegetation restoration in the dry and warm valleys of the Dadu River. Further research and development of ecological restoration technology for the vegetation in the dry and warm valleys of the Dadu River

Method used

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  • Vegetation ecological restoration method for Sichuan-west dry-warm valley barren slope land
  • Vegetation ecological restoration method for Sichuan-west dry-warm valley barren slope land
  • Vegetation ecological restoration method for Sichuan-west dry-warm valley barren slope land

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Embodiment 1

[0039] Example 1: In the dry and warm valley area of ​​the Dadu River in the section from Shimian to Hanyuan, implement the ecological restoration method of vegetation in the dry and warm valley in western Sichuan

[0040] 1. Overview of the natural environment in the implementation area

[0041] The implementation area is located in the dry and warm valley area of ​​the middle reaches of the Dadu River between Luding County and Hanyuan County, Ganzi Prefecture, Sichuan Province. The geographical location is 102°16′–102°55′E, 29°14′–29°82′N 800~1500m. With a length of 152.4km, it belongs to the northern subtropical monsoon climate, with distinct dry and wet seasons, an average annual temperature of 16.9°C, and an annual precipitation of 801.3mm. The rainfall is mostly concentrated from June to September, accounting for about 82.2% of the annual precipitation. The soil texture is light loam to heavy loam, and the soil types are mainly red soil and yellow brown soil. The valle...

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Abstract

The invention discloses a vegetation ecological restoration method for Sichuan-west dry-warm valley barren slope land. The vegetation ecological restoration method comprises the steps of site type division, vegetation ecological restoration tree species selection and configuration and application of a vegetation ecological restoration technology. According to the steps of the method performed on the dry-warm valley barren slope land, after vegetation ecological restoration is carried out through local tree species, vegetation and plant regionals of the dry and warm valley barren slope land areeffectively restored, vegetation stability maintaining and soil environment quality improving are facilitated, and in 10 years after two kinds of moderately-degraded site vegetation a barren mountaingentle slope and a barren mountain abrupt slope are restored, the vegetation is restored. The forest stand canopy density reaches 0.70, an arbor tree, shrub and grass multi-layer different-age forestecological system is preliminarily formed, the Shannon-wiener index is increased by 10%-20%, and the Simpson index is increased by 10%-15%; physical and chemical properties of soil are obviously improved, and ecological functions such as shrub water and soil conservation are obviously enhanced.

Description

technical field [0001] The invention relates to the technical field of ecological restoration, in particular to a method for ecological restoration of vegetation on barren slopes in dry and warm valleys in western Sichuan. Background technique [0002] Dry valleys are a special type of mountainous areas in Southwest my country, mainly distributed in the middle and lower reaches of the Jinsha River, Nujiang River, Lancang River and Yalong River, the middle reaches of the Dadu River and Yuanjiang River, and the upper reaches of the Minjiang River. The arid valley is a severely degraded ecosystem in the Hengduan Mountains. The arid valley belt is a relatively fragile ecological zone in the vertical zone of the mountain in the same area, and it is difficult to restore vegetation. According to different natural geographical regions and thermal conditions, the arid valleys in Southwest China are divided into three types: dry-hot valleys, dry-warm valleys and dry-warm valleys. The...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01B79/02
CPCA01B79/02Y02P60/20Y02P60/40Y02A40/22
Inventor 朱万泽李霞舒树淼盛哲良
Owner INST OF MOUNTAIN HAZARDS & ENVIRONMENT CHINESE ACADEMY OF SCI
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