A method for repairing bald spots in alpine lakeside saline-alkali wetland

A repair method and technology for bald spots, which can be applied in the fields of soil preparation, botany equipment and methods, horticulture, etc., and can solve problems such as high cold and low temperature that hinder the germination of supplementary forage seeds

Inactive Publication Date: 2011-12-28
青海省气象科学研究所
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The invention solves the problems of high salinity and high salinity in the bald spots of grasslands in the alpine lakeside area, hindering the germination of forage grass seeds, and the high cold and low temperature in the initial stage of forage growth, and increases the temperature of the bald spot restoration area by 1-3°C; the number of seedlings can reach 7,000 plants/m2 or above, si

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0004] Embodiment 1: A method for repairing bald spots in alpine lakeside saline-alkali wetlands. First, artificial ridges are borrowed from foreign soil on the boundary surface of the bald spot treatment area, so that the ridges can effectively prevent surface saline water from eroding the bald spot treatment area, and reduce surrounding salinity. Water erosion provides a basic guarantee for the bald spot control area; the second is to add 5 cm foreign soil in the bald spot control area, the purpose is to improve the soil environment for the growth and development of pasture in the bald spot control area, and at the same time effectively play the role of washing salt and reduce The damage of salinity to forage grass is beneficial to the growth of forage grass, especially for the germination of forage seeds and the growth stage of seedlings, which plays a decisive role in achieving the purpose of restoration; The forage seeds grown in this area; the fourth is to cover the heat ...

Embodiment 2

[0005] Embodiment 2: A method for repairing bald spots in alpine lakeside saline-alkali wetlands. First, artificial ridges are borrowed from foreign soil on the boundary surface of the bald spot treatment area, so that the ridges can effectively prevent surface saline water from eroding the bald spot treatment area, and reduce surrounding salinity. Water erosion provides a basic guarantee for the bald spot control area; the second is to add 10 cm foreign soil in the bald spot control area, the purpose is to improve the soil environment for the growth and development of pasture in the bald spot control area, and at the same time effectively play the role of washing salt and reduce The damage of salinity to forage grass is beneficial to the growth of forage grass, especially for the germination of forage seeds and the growth stage of seedlings, which plays a decisive role in achieving the purpose of restoration; The forage seeds grown in this area; the fourth is to cover the heat...

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PUM

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Abstract

The invention belongs to the field of vegetation restoration, in particular to a method for restoring bald spots in alpine lakeside saline-alkali wetlands. It consists of the following steps: 1. Ridges on the surface of the bald spot treatment area; 2. Add 5-10 cm foreign soil to the bald spot treatment area; 3. Supplement grass in the bald spot treatment area; 4. Bald spot treatment The area is covered with film for insulation. The invention solves the problem that the high salinity and alkalinity of the bald spots in the grasslands in the alpine lakeside area hinders the germination of forage seeds and the high cold and low temperature in the early stage of forage growth, so that the temperature of the bald spot repair area is increased by 1-3°C; the number of seedlings can reach more than 7,000 plants/m2 , which is similar to the germination rate of pasture planted in farmland soil, the coverage is increased by 3 to 5 times, reaching 50%; the salinity is reduced by 20%, the water conservation rate is increased by 10%; the biomass on the ground is increased by 10 times, and the annual pasture output reaches 38.5kg / mu, and finally achieve the purpose of restoring bald spots in alpine lakeside wetlands.

Description

1. Technical field [0001] The invention belongs to the field of vegetation restoration, in particular to a method for restoring bald spots in alpine lakeside saline-alkali wetlands. 2. Background technology [0002] At present, the vegetation restoration technology of alpine lakeside wetland degraded grassland is limited to restoring vegetation status through mechanical or artificial reseeding. This technology is more effective for non-saline-alkali grasslands with 20-60% of the original grassland vegetation, while For the treatment of bald spot areas with high salinization degree and less than 10% of the original vegetation, the technology of supplementary seeding treatment is almost ineffective. The main reasons for this result are as follows: 1. The saline-alkali bald spot area Salinity and alkalinity hinder the seedling growth of re-sowing forage seeds; 2. Saline-alkali water and high cold and low temperature jointly inhibit the growth of re-sowing. 3. Contents of the...

Claims

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Application Information

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IPC IPC(8): A01B79/02A01G1/00
Inventor 李凤霞周秉荣马宗泰刘吉宏
Owner 青海省气象科学研究所
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