Analysis of Soil Changes and Carbon Sequestration Potential in Saline Areas of Xinjiang
By collecting data and information,using ArcGIS statistical analysis,we explored the changes of saline-alkaline land and the distribution characteristics of soil carbon pools in Xinjiang,analyzed the development direction of saline-alkaline land carbon sequestration,and aimed to provide certain theoretical support for the rational use of saline-alkaline land in Xinjiang.Saline-alkaline land in Xinjiang is mainly distributed in the Tarim Basin,Junggar Basin and the edge of the Turpan Basin and the Hami area,and the salinity of the soil surface layer shows a cumulative trend on the whole;the soil moisture in Xinjiang area except the mountainous areas is low,the spatial distribution of organic matter,total phosphorus and total nitrogen is high in the northwest and mountainous areas,and low in the basin and the southeast,and the total potassium is high in the Junggar Basin and the Tarim Basin,and the saline-alkaline area shows low nutrient composition in general;the saline-alkaline area shows low nutrient composition in general.The total potassium was higher in Junggar Basin and Tarim Basin,and the saline areas were generally lower in nutrients;the soil organic carbon density showed the distribution characteristics of high in the northwest and low in the southeast,and higher in the mountainous areas than in the basin.The content of organic carbon in saline and alkaline soils is low,and the organic carbon density is low,mainly dominated by inorganic carbon pools;the soil carbon sequestration potential of saline and alkaline areas in Xinjiang is huge,and the inorganic carbon stock has an important position in the potential response to the national environmental change and the mitigation process of climate change.
saline-alkaline soildistribution and causesorganic carboninorganic carbon
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