Nutritional regulation method for carbon sequestration and sink enhancement for wetlands

Abstract

The invention aims to provide a nutritional regulation method for carbon sequestration and sink enhancement for wetlands, which includes the steps: selecting a meadow or marsh with no logged water on the surface; determining wetland environmental factors; determining soil water content, taking soil 5-15cm under surface vegetation in early May in the beginning of the year for testing, using a soil box to hold a fresh soil sample under the vegetation, and drying the soil at about 80 DEG C till the soil is in constant weight, wherein the soil water content = (soil dry weight - soil dry weight) / soil dry weightX100%, the soil water content is required to be 60%-95%, and the soil is determined to be in a meadow soil type, Baijiang soil type or marsh soil type; and using nitrogen fertilizer, phosphate fertilizer and potash fertilizer as nutrients, and applying the nutrients according to dosage of the nitrogen fertilizer3.4-4.5kg per mu, the phosphate fertilizer 2.5-3.5kg per mu and the potash fertilizer 2.0-2.5kg per mu. By the method, vegetation coverage of the wetlands can be increased, carbon sequestration of vegetation can be improved, soil carbon storage can be increased, and emission of greenhouse gases can be reduced. The nutritional regulation method is low in investment, low in cost and widely applicable.

Description

(1) Technical field [0001] The invention relates to a wetland carbon fixation and sink increase technology, in particular to a nutritional control method for wetland carbon fixation and sink increase. (2) Background technology [0002] Since the industrial revolution, due to the intensification of large-scale human activities, such as burning a large amount of fossil fuels, deforestation, and land reclamation for agriculture, the natural process of the ecosystem carbon cycle and the inherent carbon balance of the biosphere have been changed, resulting in atmospheric CO 2 、CH 4 and N 2 The continuous increase in the concentration of greenhouse gases such as O has triggered the problem of global change and seriously threatened the survival and sustainable development of human society. As one of the three major ecosystems on the earth, wetlands are one of the most important carbon pools in terrestrial ecosystems, accounting for 12% to 24% of the total carbon storage in terres...

AI Technical Summary

Problems solved by technology

However, human activities dominated by agricultural drainage and reclamation have caused continuous loss of wetlands and serious degradation of wetlands, and the function of carbon sequestration and sinking has been severely reduced

At present, research on carbon sequestration at home and abroad mainly focuses on the breeding of high carbon sequestration plant varieties and artificial planting of trees and grasslands. There are few reports on the applied technology of Hui