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Dune-fixing vegetative cover restoring material and its production

A technology of vegetation restoration and fine sandy soil, applied in the direction of soil conditioning materials, chemical instruments and methods, organic fertilizers, etc., to achieve the effect of simple production process, good water retention effect, and low investment

Inactive Publication Date: 2006-11-01
LANZHOU INST OF CHEM PHYSICS CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Aiming at the shortcomings of the current chemical sand fixation, the present invention provides a sand fixation and vegetation restoration material, the purpose of which is to solve practical problems such as water and fertilizer required for plant growth in the process of sand fixation, and to achieve the dual effects of sand fixation and vegetation restoration

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] Weigh 1 part of polyvinyl alcohol, 5 parts of polyacrylic acid water retaining agent and 5 parts of urea and dissolve them in water. After 15 parts of attapulgite, 15 parts of wheat straw pulverization and 59 parts of fine sand (parts refer to parts by weight, examples 2 and 3 are also) and an appropriate amount of plant seeds are fully stirred in the mixer, add the dissolved Solution, continue stirring for 30 minutes and discharge for use.

[0019] Spread the prepared material evenly on the sand dunes of the desert road to form a thick layer of about 10 cm, and cover it with plastic film. Remove the plastic film after 15 days, and the plants can grow normally.

Embodiment 2

[0021] Weigh 1 part of polyvinyl alcohol, 1 part of starch, 7 parts of polyacrylic acid water retaining agent, 5 parts of urea, and 2 parts of potassium dihydrogen phosphate and dissolve them in water. Mix 20 parts of attapulgite, 20 parts of crushed wheat straw, 44 parts of fine sand and appropriate amount of plant seeds in a blender, then add the dissolved solution, continue stirring for 30 minutes, and discharge for use.

[0022] Spread the prepared material evenly on the sand dunes of the desert road to form a thick layer of about 10 cm, and cover it with plastic film. Remove the plastic film after 15 days, and the plants can grow normally.

Embodiment 3

[0024] Weigh 1 part of polyacrylamide, 1 part of water glass, 10 parts of polyacrylamide water retaining agent, 2 parts of humic acid, and 1 part of potassium dihydrogen phosphate, and dissolve them in water. Mix 30 parts of attapulgite, 25 parts of crushed wheat straw, 30 parts of fine sand and an appropriate amount of plant seeds in a blender, then add the dissolved solution, continue stirring for 30 minutes, and discharge for use.

[0025] Spread the prepared materials evenly on the sand dunes of the desertified grassland to form a thick layer of about 10 cm. After 10 days the plants germinated and grew normally.

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Abstract

A sort of material used for sand-binding vegetation renewing which consists of plant cellulose, microelements, fertilizer, water-absorbable resin and sand. Rainfall can filter into the sand sufficiently to make sure that seed can germinate and grow while in sunny day sand crusts to prevent water from excess evaporation. It is suitable for migratory dune immobilizing and vegetation renewing. The contradiction between chemical sand-binding and vegetation growth can be settled by this material.

Description

technical field [0001] The invention relates to the fields of ecological restoration and desert control. Specifically, the invention relates to a sand-fixing vegetation restoration material and a preparation method thereof. Background technique [0002] my country is one of the countries with the largest desertified land area, wide distribution and most serious harm in the world. According to statistics, the area of ​​desertified land in China reaches 1.74 million square kilometers, accounting for 18% of the country's land area. Moreover, the expansion rate of land desertification reaches 3436 square kilometers per year, which is equivalent to the loss of land area of ​​a medium-sized county every year. In recent years, my country's land desertification is still showing a general trend of expansion. The increasingly serious land desertification directly affects the implementation of the national sustainable development strategy, and also threatens the living space of the C...

Claims

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Application Information

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IPC IPC(8): C09K17/50
Inventor 王爱勤张琨杨效和
Owner LANZHOU INST OF CHEM PHYSICS CHINESE ACAD OF SCI
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