Method for increasing carbon sequestration amount of severely-degraded chloris virgata meadow vegetation

Abstract

The invention discloses a method for increasing the carbon sequestration amount of severely-degraded chloris virgata meadow vegetation. The method comprises the steps that 1, soil preparation is conducted on the portion, without plant coverage or with low plant coverage rate, in a preset area in shallow ploughing and light raking manners, wherein the soil preparation time is the first ten days ofApril in the same year, soil blocks need to be smashed in the soil preparation process, and the soil turning depth needs to be 5-10 cm; 2, a predetermined ecological preparation is applied to the prepared land in the first ten days or the middle ten days of April in the same year; 3, a predetermined fertilizer is applied to the land to which the predetermined ecological preparation is applied in the first ten days or the middle ten days of April in the same year; 4, predetermined grass seeds are sowed on the land to which the predetermined fertilizer is applied in the middle ten days or the last ten days of April in the same year; 5, later-period management and protection are conducted, wherein watering is mainly conducted in the sowing period. The method can effectively improve the growthenvironment of the vegetation, improve the productivity and carbon sequestration capacity of the vegetation and increase the carbon sequestration amount of the vegetation.

Description

technical field [0001] The invention relates to a method for increasing the carbon sequestration capacity of heavily degraded sansevieria meadow vegetation, and belongs to the technical field of grassland carbon sink emission reduction. Background technique [0002] As the most basic circulating substance in the ecosystem, carbon is mostly migrated and transformed between the biosphere, hydrosphere, lithosphere and atmosphere in the form of CO2, and is kept in a relatively balanced state. However, due to human activities such as agricultural reclamation, overgrazing, and fossil fuel combustion, the content of CO2 in the atmosphere has increased sharply, which has destroyed the balance of the global carbon cycle, increased carbon sources while reducing carbon sinks, and caused global climate change. Change. In the context of global warming, increasing the land's fixation of CO2, reducing its carbon emissions, and striving for more carbon emission rights have become scientifi...

AI Technical Summary

Problems solved by technology

However, due to the transitional needs of economic and social development, human beings represented by land reclamation, reclamation and overgrazing have led to the deterioration of the ecological environment of the Songnen Grassland. The problems of "degeneration, salinization and desertification" of the grassland are particularly serious, and the carbon sequestration capacity of vegetation is serious. decline

At home and abroad, a lot of work has been done on the carbon sequestration of grassland ecosystems, most of which focus on basic theoretical research on carbon cycle, greenhouse gas emissions, soil carbon and nitrogen, etc. Research on grassland vegetation carbon sequestration and increasing sink technology is still in the works. lacking