Lawn protecting method adaptive to climatic change in high frigid grassland regions

Abstract

The invention discloses a lawn protecting method adaptive to climatic change in high frigid grassland regions, and relates to a technology of ecological restoration and high frigid grassland climatic change adaptation. The method comprises the following steps of: dividing a grazing grassland into three parts according to the grassland utilization mode, namely a warm season grazing region, a drop spraying irrigation region and a low shed drop irrigation region; performing fencing and rotational grazing on the three parts respectively; irrigating the grassland by using rive and lake water and warm season rainfall and combining a water-saving irrigation technology; performing reseeding, harvesting and storage or shed opening and rotational grazing on the grass of the drop spraying irrigationregion and the low shed drop irrigation region according to the climatic conditions; and determining the irrigation quantity according to the local climatic change condition, namely the difference between the rainfall precipitation and the grass demand quantity, and determining the climatic change adapting capability of the method. The method can solve the problems that edible grass for livestockin dry seasons is reduced, the meadow area in the dry seasons is small, and the grassland is destroyed by livestock and the like; and the productivity of the grassland in summer and the livestock bearing quantity are improved, recovery and protection of the ecological environment are realized, and the method is an effective measure for making the high frigid grassland regions adaptive to the climatic change.

Description

Technical field [0001] The invention relates to the technical field of ecological restoration and adaptation to climate change, and is a grassland vegetation improvement technology, that is, a grassland protection method adapted to climate change in alpine grasslands. Background technique [0002] Northern Tibet is the main pastoral area of ​​the Tibet Autonomous Region, and it is also an area where livestock resources are concentrated in the Tibet Autonomous Region. The grassland area accounts for more than 80% of the grassland area in northern Tibet, and the amount of livestock raised accounts for about 60% of the entire Tibet. However, northern Tibet is the most ecologically fragile area in Tibet. It is restricted by climatic conditions, mainly water and heat conditions, slow growth of vegetation, high dry monsoon, severe rodent damage, and unreasonable grazing. The grassland degradation in northern Tibet is serious. More than 40% of the grassland has been degraded to varying ...

AI Technical Summary

Problems solved by technology

Previous studies on grassland restoration technology rarely considered the factors of climate change. It is necessary to explore new technologies on how to use local heat and water resources to restore and improve grassland productivity under current and future climate change conditions. The original vegetation cover, but also to meet the needs of livestock for pasture

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