System and method for planting pasture grass in desertificated soil of alpine grassland

Abstract

The invention discloses a system and method for planting pasture grass in desertificated soil of alpine grassland. According to the system for planting the pasture grass in the desertificated soil ofthe alpine grassland, a pasture grass seeding row in the desertificated soil contains a first soil layer 1, a thin soil layer 2, a straw particle layer 3 and a second soil layer 4 from top to bottom from the earth's surface; the thin soil layer 2 is internally provided with a seeding layer 5; the pasture grass is planted in the seeding layer 5; the thickness of the first soil layer 1 is 9-11 centimeters; the thickness of the thin soil layer is 3-5 centimeters; the thickness of the straw particle layer is 2-3 centimeters; the straw particle layer is formed by gathering a large number of straw particle modifiers. The provided system and method solve the problems of the alpine grassland in northwestern Sichuan that the desertificated soil has poor fertility, water and fertilizers are leaked,organic materials are difficult to put, and seeds are wasted.

Description

technical field [0001] The invention relates to the technical field of soil cultivation and fertilization, in particular to a pasture planting system and a planting method in desertified alpine grassland soil. Background technique [0002] Soil desertification refers to the process in which good soil or usable land turns into sandy soil or land or even desert under the action of wind erosion and wind accumulation. In recent years, the area of ​​alpine grassland desertification in northwestern Sichuan has increased sharply, seriously restricting the sustainable development of local animal husbandry and regional economy, and directly affecting the economic development of ethnic minority areas and the social and political stability of Tibetan areas. , The ecological environment of the downstream area has a serious impact, endangering the national ecological security and the sustainable economic and social development of ethnic minority areas, which has aroused widespread concer...

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Problems solved by technology

[0004] However, due to the high altitude, low temperature, many windy days, poor soil fertility, and some human and livestock damage in Northwest Sichuan, even though sand barriers were formed during the treatment period, planting shrubs and grasses, fencing and sealing, cattle and sheep manure Several major technologies such as sand fixation and sand retaining wall installation, but the experience and technology are immature, and the vegetation restoration model in the early stage of treatment is relatively simple, mainly grass planting. Survey data such as vegetation survey and productivity measurement show that the vegetation preservation rate in sandy land is generally low. The plant community structure is fragile, and some shifting sands are only covered by grasses, which cannot fix the shifting sand and improve the micro-habitat, and cannot form a stable community structure

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