Semiarid sand land vegetation ecology and grass production system rebuilding and keeping technique

Abstract

A method for rebuilding and maintaining vegetation ecosystem and pasture production system in semiarid wind sand area relates to the technical fields, such as agricultural water and soil conversation, prevention and control of desertification, pasture cultivation and ecological environment etc, wherein perennial pasture with properties of drought resistance, nitrogen fixing, cold resistance and saline alkali resistance is adopted to combine with a multifunctional ecological film compound fertilizer functioned to bond and fix sand, absorb dampness and infiltrate water, conserve water and soil, fertilize sand and nourish sprout, preserve heat and promote growth. The technical scheme is that: selecting in April or May in spring, on the basis of flat sandy land, after seed soaking, planting the perennial pasture plants, such as varied lobular clover, Astragalus adsurgens pall, sainfoin, vetch, Agropyron desertorum etc; then adopting a method of a spraying can or an agricultural tractor mating with a high pressure water pump; or burying a plastic pipe in the ground, one end of the plastic pipe being connected with a water pump of a large-scaled fertilizer film mixing tank and the other end thereof being connected with a spraying nozzle; spraying the multifunctional ecological film compound fertilizer by adding water in 50 to 60 times such that an ecological ground film with thickness about 2 mm is naturally formed on the surface of the earth; three processes of spraying water, applying fertilizer and laying film can be completed at the same time so as to synchronously build up an ecological vegetation and pasture production system.

Description

technical field [0001] The invention discloses a technique for rebuilding and maintaining vegetation ecology and forage production system in a semi-arid desertified area, and relates to the technical fields of agricultural water and soil conservation and desertification control, forage cultivation and production and ecological environment engineering, and sand prevention and control engineering. Background technique [0002] 68% of my country's reserve land resources are distributed in arid and semi-arid areas, of which desertified land reaches 370,000 square kilometers, accounting for nearly 1 / 4 of the country's cultivated land area, involving 212 counties (banners). Among these desertified lands, the semi-arid zone on both sides of the Greater Khingan Mountains accounts for about 41%; the semi-arid desert steppe zone accounts for about 32%; and the western arid desert zone accounts for about 27%. The annual economic losses caused by desertification in the country amount to...

AI Technical Summary

Problems solved by technology

[0003] In recent years, although sand-fixing materials and sand control technologies have been developed at home and abroad, most of them are single-function technologies or products, and the cost is high, the effect is not ideal, and it is difficult to promote and apply them on a large scale

Due to the lack of good integration of various technologies, it is difficult to give full play to the comprehensive advantages. The situation of partial improvement of desertification desert and overall deterioration has not been reversed, including the effect of windbreak and sand-fixation forest construction during the "Tenth Five-Year Plan" period. So severe that in 2006, dust hit the capital Beijing 13 times