摘要
通过收集数据资料,利用ArcGIS统计分析,探究新疆盐碱地变化情况及土壤碳库分布特征,分析盐碱地固碳发展方向,旨在为合理利用新疆盐碱地提供一定的理论支持。新疆盐碱地主要分布在塔里木盆地、准噶尔盆地和吐鲁番盆地边缘及哈密地区,土壤表层的含盐量在总体上呈现累加趋势;新疆地区除山区外的土壤水分都较低,有机质、总磷和总氮的空间分布为西北和山区高,盆地和东南低,总钾为准噶尔盆地和塔里木盆地较高,盐碱地区总体上表现为营养成分较低;土壤有机碳密度呈现西北高、东南低,山区高于盆地的分布特征。盐碱地土壤中有机碳的含量较少,有机碳密度较低,主要以无机碳库为主;新疆盐碱地区土壤固碳潜力巨大,无机碳储量在对全国环境变化的潜在响应以及对气候变化的缓解过程中具有重要地位。
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.
作者
王新富
王彦君
周晓芳
赵欣
徐辉
WANG Xinfu;WANG Yanjun;ZHOU Xiaofang;ZHAO Xin;XU Hui(Jiangsu Design Institute of Geology for Mineral Resources(Testing Center of China National Administration of Coal Geology),Xuzhou,Jiangsu 221006;Key Laboratory of Coal Resources and Mineral Resources,CNACG,Xuzhou,Jiangsu 221006;Carbon Neutral Research Institute,CNACG,Beijing 100039)
出处
《中国煤炭地质》
2024年第5期50-55,75,共7页
Coal Geology of China
基金
江苏省科技项目“江苏省温室气体排放核算与监测技术公共服务平台建设”(BM2022037)
中国煤炭地质总局科技创新项目“碳评价、捕集与封存技术研究”(ZMKJ-2021-ZX02)。
关键词
盐碱地
分布及成因
有机碳
无机碳
saline-alkaline soil
distribution and causes
organic carbon
inorganic carbon
作者简介
第一作者:王新富(1994-),男,硕士,工程师,主要从事土壤环境检测、矿区生态环境评价、固废资源化利用研究工作。E-mail:wangxf9408@163.com;通讯作者:王彦君(1971-),女,硕士,教授级高级工程师,主要从事固废资源化利用研究工作。E-mail:1262455520@qq.com。
