The Relationship Between Genetic Layers With Active Organic Carbon And Its Ecological Significance Of Paddy Soil In Jiangxi Province

Global climate change has become an important topic of common concern around the world,In recent years,The development of low carbon agriculture has become one of the long-term development strategies in the development of country,because of global warming and greenhouse gas emissions in agricultural production process.This paper is based on the development of low-carbon agriculture and take the paddy soil of Jiangxi Province as an object,The study area consists of 24 soil profiles and each profile include 4 to 5 layers,That have 113 soil samples in total.That the main purpose is to analyze the relationship of Jiangxi Province paddy soil diagnostic characteristics and soil active organic carbon points in order to provide the conditions for increasing soil organic carbon content;The second is to further explore the transformation relation between the active organic carbon fractions,and be conducive to study soil carbon source and carbon sink sequestration in Jiangxi Province,and to lay the foundation for come ture green-carbon.The conclusions of this study are as follows:(1)Based on the study of active organic carbon fractions in paddy soils of Jiangxi Province,we can find that with the increase of tillage years,the soil organic carbon content increases accordingly,so it can be used to extend the paddy soil to reduce the greenhouse effect.In addition,the activity of soil in Quaternary red clay and pond accumulation is higher,and the stability of organic carbon can be increased under the development of river sediments.(2)Through the analysis of influence of diagnostic characteristic to active organic carbon found that the correlations between pH value,free iron oxide and clay content and active organic carbon fractions showed extremely significant negative correlation,while the correlations between medium and coarse powder with active organic carbon fractions showed extremely significant positive correlation,however the correlations between coarse powder and readily oxidized organic carbon showed positive correlation.(3)In order to improve the ecological environment of Jiangxi Province,it can be realized by improving the industrial structure and realizing the sustainable utilization of paddy soil resources or increasing the carbon sequestration capacity of paddy soils.