Technology for recovering severe degraded subalpine flat dam meadow

Abstract

The invention discloses a technology for recovering a severe degraded subalpine flat dam meadow. The technology for recovering the severe degraded subalpine flat dam meadow can effectively recover the severe degraded subalpine flat dam meadow to an original state. The technology for recovering the severe degraded subalpine flat dam meadow comprises the following steps that firstly, enclosure is carried out on a degraded meadow, the time for the enclosure is at least five years, and grazing is forbidden in the period of the enclosure; after grass resumes growth, grass seeds are reseeded and fertilizer is applied in the degraded meadow, and the grass seeds seeded in the degraded meadow comprise 1.8-2.2kg/mu of elymus sibiricus, 1.8-2.2kg/mu of elymus, 1.0-1.4kg/mu of bluegrass and 1.0-1.4kg/mu of red fescue. By means of the recovering technology, most parts of the severe degraded meadow can be recovered in five years normally, conservative grazing of livestock can be carried out from the sixth year after soil is frozen in winter, and the severe degraded meadow can be completely recovered after another two years. The technology for recovering the severe degraded subalpine flat dam meadow is suitable for being popularized and applied in the field of pratacultural science.

Description

technical field [0001] The invention relates to the field of herbaceous science, in particular to a restoration technology for severely degraded subalpine flat dam meadows. Background technique [0002] Subalpine meadow is a type of alpine meadow. The alpine meadow is a type of meadow adapted to the alpine habitat. It is a meadow community with cold-tolerant, dense clusters of short-rhizome subterranean Kobresia subterranean plants, sedges, grasses, and forbs. It is most widely distributed in the high mountains in western my country and the eastern Qinghai-Tibet Plateau, and it also exists in the Qinling Mountains, Xiaowutai Mountains and Northwest Yunnan Mountains. Due to the variety of species, the growth is dense and the coverage is large. Among them, the most typical one is the wormwood meadow, with more than 10 species of colonies, distributed at an altitude of 4000-5000m; the alpine meadow dominated by forbs, distributed at a slightly lower altitude, and has a gorgeo...

AI Technical Summary

Problems solved by technology

At present, there is no effective measure for how to restore degraded meadows. Most of them apply some fertilizers in degraded meadows to promote the growth of pastures. For moderately degraded and severely degraded meadows, the effect is not obvious. If meadow degradation is not effectively suppressed and restored, the meadow will degenerate into a desert after a long time, causing great damage to the environment.

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