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Rapid method for promoting ecological restoration of damaged ecological system under extreme arid environment

An ecosystem and ecological restoration technology, applied in botany equipment and methods, horticulture, forestry, etc., can solve problems such as limited restoration range, slow vegetation restoration process, single community structure, etc., and achieve the purpose of improving ecological restoration and using low cost. cost, the effect of avoiding reverse succession

Inactive Publication Date: 2012-12-05
XINJIANG INST OF ECOLOGY & GEOGRAPHY CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The ecological water transportation in the lower reaches of the Tarim River adopts the "linear" water transportation method along the natural river, which is a life-saving process. Although it played an important role in raising the groundwater level near the river and saving the declining natural vegetation at the beginning, it was difficult to achieve the goal of Populus euphratica. , Tamarix and other plants, the vegetation recovery process is slow, and the recovery is a line, not a surface, and the recovery range is extremely limited
Although some large trees and shrubs have been rescued and rejuvenated, the herbaceous plants have not improved significantly, and the community structure is still monotonous, especially in the downstream section, and the activation of sandy land in the forest has not been curbed

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] On the bare ground in the arid desert area, artificial or mechanical methods are used to open parallel ditches, the ditch depth is 0.4m, and the distance between the ditch is 2m, and 0.4m deep ditches are opened at the beginning and end of each ditch to keep the flow between the ditches. Pre-opening ditches for flood irrigation and water storage;

[0020] During the period from July to October each year, in the same area to be restored, select a place where the local species diversity is well maintained, and choose Tamarix, Populus euphratica, licorice, bell thorn and Nitraria plants with vigorous growth and luxuriant flowering branches. Collect the fruits and seeds while they are ripe, and put them in the shade after harvesting to dry until the skin cracks, avoid exposure to the sun, and store them in paper bags in a low-temperature and dry environment;

[0021] In September and October (the specific time depends on the amount of water coming in from the Tarim River) t...

Embodiment 2

[0024] On the bare ground in the arid desert area, artificial or mechanical methods are used to open parallel ditches with a depth of 0.5m and a distance of 3m. Plow 0.5m deep ditches at the beginning and end of each ditch to keep the ditches unimpeded. Reclamation of furrows for flood irrigation and water storage;

[0025] During the period from July to October each year, in the same area of ​​the area to be restored, choose a place where the local species diversity is well maintained, and choose Tamarix, Populus euphratica, licorice, bell thorn and Nitraria plants with vigorous growth and luxuriant flowering branches. Harvest fruits and seeds while they are ripe. After harvesting, put them in a wind-shaded place to dry until the skin cracks. Avoid exposure to the sun. Collect them in paper bags and store them in a low-temperature and dry environment;

[0026] In September and October (the specific time depends on the amount of water coming in from the Tarim River) the area t...

Embodiment 3

[0029] On the bare ground in the arid desert area, parallel ditches were dug manually or mechanically. The ditches were 0.5m deep and 4m apart, and 0.5m deep ditches were opened at the beginning and end of each ditch to keep the ditches unimpeded. Reclamation of furrows for flood irrigation and water storage;

[0030] During the period from July to October each year, in the same area of ​​the area to be restored, choose a place where the local species diversity is well maintained, and choose Tamarix, Populus euphratica, licorice, bell thorn and Nitraria plants with vigorous growth and luxuriant flowering branches. Harvest fruits and seeds while they are ripe. After harvesting, put them in a wind-shaded place to dry until the skin cracks. Avoid exposure to the sun. Collect them in paper bags and store them in a low-temperature and dry environment;

[0031] In September and October (the specific time depends on the amount of water coming in from the Tarim River channel), the area ...

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PUM

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Abstract

The invention relates to a rapid method for promoting ecological restoration of a damaged ecological system under an extreme arid environment. The method uses a natural succession process of natural vegetation composition, community dynamics, modes of reproduction and desert vegetational types, quickens restoration of desert plants through a mode combining artificial ecological restoration and spontaneous recovery, simultaneously uses excited effects of a desert region water and salt migration rule and a flooding mode on a seed bank to improve breeding habitats of disappeared species of degeneration communities, thereby achieving a purpose of promoting the ecological restoration of the damaged ecological system under the extreme arid environment so as to improve efficiency of the ecological restoration in a dry desert region with the condition that a precipitation amount is less than 100mm, evaporation capacity is more than 2000mm and surface water is in serious lack, improves community diversity of the desert plants through plant provenance compensation and habitat improvement, improves stability of community structures, and improves self-maintenance capability of restored plant communities.

Description

technical field [0001] The invention relates to a method for improving the breeding environment in arid desert areas and accelerating ecological restoration, in particular to a method for artificial provenance supplementation and habitat improvement. Background technique [0002] Species diversity is the result of the long-term evolution of life on earth, and it is the material basis for human survival. Species diversity is a necessary condition for maintaining the relative balance of the ecosystem. Preventing soil erosion, regulating climate, absorbing and decomposing pollutants, storing nutrients, promoting nutrient cycling and maintaining evolution are all indirectly related to species diversity. The diversity of species means that the ecological system has a complex structure, a high degree of network, and strong heterogeneity. There are many and dense channels for energy, material and information input and output, criss-crossing and unimpeded, so the flow is large, the ...

Claims

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Application Information

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IPC IPC(8): A01G1/00A01G23/00
Inventor 黄湘陈亚宁李卫红马建新
Owner XINJIANG INST OF ECOLOGY & GEOGRAPHY CHINESE ACAD OF SCI
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