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Directional transformation and productivity matching restoration method for desertification grassland

A productivity and grassland technology, applied in the fields of botanical equipment and methods, horticulture, plant cultivation, etc., can solve the problems of low plant community stability and insignificant effect, and achieve improved community stability, fertilization effect, and obvious effect. Effect

Inactive Publication Date: 2019-08-30
HENAN UNIVERSITY
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The current artificial replanting restoration measures are not stable in the plant community, and the effect is not obvious

Method used

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  • Directional transformation and productivity matching restoration method for desertification grassland
  • Directional transformation and productivity matching restoration method for desertification grassland
  • Directional transformation and productivity matching restoration method for desertification grassland

Examples

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Embodiment Construction

[0012] The specific technical solutions of the present invention are described in conjunction with the examples.

[0013] In this example, the desertified and degraded grassland in Ulan Aodu area was taken as the experimental research sample plot, and a semi-artificial grassland was established by raking and mixing high-quality grass. The main method includes using a tractor to pull a five-plow plow to plow 25cm in the contiguous flat sand-accumulated grassland, and mechanically sowing high-quality forage grass in early June after raking. The row spacing is 30cm, and the seeding rate is 1kg / mu. Fertilize the 2-year-old sandawang grassland, and the fertilizer is ammonium sulfate (NH 4 ) 2 SO 4 . 0.5kg / mu~15kg / mu, it should be selected according to the land conditions. Sow 0.25kg of sandgrass and 0.5kg of wheatgrass, and the total seeding rate is 0.75kg per mu on average. Sowing time is before the rainy season in July-August. Sowing method: direct sowing, drilling, and on...

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Abstract

The invention provides a directional transformation and productivity matching restoration method for desertification grassland. The method comprises the steps that the desertification grassland is ploughed by machines and flat raked, and pasture astragalus adsurgens is subjected to mechanical after-culture in early June; fertilization is conducted on biennial astragalus adsurgens grassland; the astragalus adsurgens and wheatgrass are subjected to mixing sowing. The directional transformation and productivity matching restoration method for the desertification grassland is mainly suitable for pasture grassland with sparse vegetation, low grass yield, severe sand accumulation and no mowing value and sandy bush fallow grassland with low plant diversity, absence of perennial biological speciesand a large bare sand area; the coverage degree and biomass of herbaceous plants are increased, perennial plants gradually become dominant species of the herbaceous plant community, and the stabilityof the community is greatly improved; nutrients, such as organic matter, of the soil are increased, and the method has an obvious fertility improvement effect.

Description

technical field [0001] The invention belongs to the technical field of sandy land improvement, and in particular relates to a matching method for directional transformation and productivity restoration of sandy grassland. Background technique [0002] Desertified grassland refers to the grassland with sandy surface environment in different climate zones, which is affected by factors such as wind erosion, water erosion, drought, rodents and insects, and human improper economic activities, so that the natural grassland is damaged to varying degrees, the soil is eroded, the soil is desertified, and the content of soil organic matter is reduced. , the loss of nutrients and the decline of grassland productivity lead to grassland degradation in non-desert areas, which is mainly characterized by wind and sand activities, similar to desert landscapes. Fence enclosure, mechanical sand barrier for sand fixation and artificial planting restoration measures are the main means of restora...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01G22/00
CPCA01G22/00
Inventor 苗仁辉郭美霞武立琦苗原陈安群杨中领高博雯
Owner HENAN UNIVERSITY
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