Free-grazing method for natural alpine grassland in reviving period

Abstract

The invention provides a natural alpine grassland reviving period pasturing method which comprises the steps that reviving period pasturing measures are suitable for winter and spring grassland and are generally implemented on medium-light degenerated natural alpine grassland which is good in site condition and does not degenerate or is slightly degenerated, and in order to facilitate livestock management, fence facilities are generally required in reviving period pasturing land parcels; the plants are relatively fragile in a green returning period of pasture in the alpine grassland, so that normal growth of the plants is interfered by grazing, ingestion and trampling in the period, tillering, sprouting and other numbers of elymus nutans are reduced, nutrient substances in the plants are forced to be redistributed, and the yield of the plants is increased. And nutrient substances stored at the roots of the pasture cannot meet the normal growth and development of the pasture and even cannot form normal seeds, so that the coverage of the alpine grassland, the plant height of the pasture and the productivity of the grassland are reduced after pasturing in the reviving period, and the phenomenon can be avoided after pasturing in the reviving period.

Description

technical field [0001] The invention relates to the field of animal husbandry and breeding, in particular to a method for resting grazing in the greening period of natural alpine grassland. Background technique [0002] The main utilization method of alpine grassland is grazing. Alpine grassland refers to the general term for alpine meadows, alpine grasslands, alpine desert grasslands and other grasslands distributed on the Qinghai-Tibet Plateau. However, grazing disturbance will affect the cover and plant height of plants. Vegetation cover and plant height are important indicators for evaluating the growth status of grassland plants. Grazing usually reduces the cover and plant height of plants, especially in alpine grasslands during the sensitive period of forage growth. Grazing during the period will significantly reduce the coverage of grassland vegetation, which refers to the period when plants begin to grow after the winter rest period, that is, the spring overwintering ...

AI Technical Summary

Problems solved by technology

Studies have shown that overgrazing significantly reduces the photosynthetic rate, transpiration rate and water use efficiency of pastures