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A method for planting sand-fixing plants in arid sandy areas

A technology for sand-fixing plants and arid sandy areas, applied in the field of sand-fixing plants in arid sandy areas, can solve the problems affecting the ecological effect of artificial sand-fixing vegetation, the sustainability of ecological restoration, the decline of groundwater level, and the decrease of soil moisture, so as to avoid the damage caused by wind and sand flow , maintain water balance, increase the effect of roughness

Active Publication Date: 2017-04-26
NORTHWEST INST OF ECO ENVIRONMENT & RESOURCES CAS
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Problems solved by technology

However, blind and large-scale reconstruction of a single type of vegetation, whether in the eastern sandy area with high precipitation or in the sandy area west of Helan Mountain with low precipitation, will lead to groundwater table decline, soil moisture reduction, vegetation degradation, and even New desertification seriously affects the ecological effect of artificial sand-fixing vegetation and the sustainability of ecological restoration

Method used

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  • A method for planting sand-fixing plants in arid sandy areas
  • A method for planting sand-fixing plants in arid sandy areas

Examples

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example 1

[0026] 1) Fixed sand surface: In March 2010, a mobile sand dune (area 2.5 hm 2 ), first use 1m×1m grass grid to fix the sand surface;

[0027] 2) Selection of plant species: Select 8 kinds of psammophyte seedlings, including shrub flower stick, Polygonum syringae, Caragana, Azalea, Haloxylon, semi-shrub Artemisia oleifera, and Artemisia oleifera. Seedlings of shrubs and semi-shrubs with a height of 20cm, a diameter of 0.5cm, and a relatively complete root system, the top branches and leaves were removed before the shrubs were planted; the planting time was April 2010, and additional planting was carried out in August 2010 and April 2011 ;

[0028] 3) Planting density: the present invention divides the planting density of psammophyte seedlings into low density: 20 shrubs / 100m 2 And half shrub 40 plants / 100m 2 , medium density: 35 shrubs / 100m 2 And half shrub 70 plants / 100m 2 And high density: 50 shrubs / 100m 2 And half shrubs 100 plants / 100m 2 Three types, the planting de...

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Abstract

The invention relates to a dry desert zone sand binder planting method. The survival rate of all kinds of sand binders is 70 percent or more in the dry desert regions with the annular precipitation ranging from 100 mm to 250 mm through sand face fixing, plant species selecting, planting density determining, planting mode selecting and seedling managing. The planted sand binders are planted along with deposition of falling dust on the surface of sand dunes, settlement of therophytes and growing of biological soil crusts are promoted, and long-term effective fixing of the sand dunes is guaranteed. By means of the sand binder planting method, the survival rate of the sand binders is guaranteed, the labor and seedling cost is reduced, and the purposes of preventing wind and fixing sand are achieved on the premise of maintaining the water balance.

Description

technical field [0001] The invention belongs to the technical field of ecology, and specifically refers to a method for planting sand-fixing plants in an arid sandy area. It is suitable for the construction of sand-fixing vegetation in Inner Mongolia, Ningxia, Gansu, Qinghai, Xinjiang and other provinces (autonomous regions) with an annual precipitation of 100-250 mm in arid desert areas. The purpose is to ensure the survival rate of sand-fixing plants, reduce labor and seedling costs, and maintain water balance. To achieve the best effect of windbreak and sand fixation under certain conditions. Background technique [0002] The wind-sand hazard areas in my country are distributed at 75°-125°E, 35°-50°N, forming a road stretching from the western part of the Tarim Basin in the west to the west of the Songnen Plain in the east, traversing the northwest, north and northeast regions, with a length of 4500 km from east to west. The intermittent arc-shaped desert belt (including ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A01G1/00
CPCA01G22/00Y02A40/22
Inventor 李新荣张志山
Owner NORTHWEST INST OF ECO ENVIRONMENT & RESOURCES CAS
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