摘要
利用多目标区域土壤地球化学调查数据,对河北平原表层土壤中有机碳和无机碳的空间分布进行了研究,计算了无机碳储量并结合有机碳储量的研究结果得到河北平原表层土壤的总碳储量。结果表明:河北平原表层土壤碳在空间分布表现出与土壤类型、地貌,尤其是古河道、湖泊的密切关系,并受到人类活动的影响。表层土壤碳总储量为320.56Mt,碳密度为4.33kg/m2。其中无机碳储量达到145.74Mt,碳密度为1.97kg/m2,以潮土和褐土的碳储量最大,以草甸盐土和潮土的无机碳密度最高。潮土区无机碳主要是发生碳酸盐,而褐土区无机碳主要是岩生无机碳。
Baced on topsoil total and organic carbon data obtained by multi-purpose regional geochemical survey,we studied the spatial distribution of inorganic and organic carbon,the reserve of soil inorganic and total carbon in the surface soil of Hebei Plain. The results showed that the spatial distribution of soil carbon has close relationship with soil type and landform,especially the old channel and lake. In addition,it also is influenced by human activity. Soil total carbon storage is 320. 56Mt and density is 4. 33kg/m2,inorganic carbon storage is145. 74Mt and density is 1. 97kg/m2. The reserve of alluvial soil and cinnamon soil is the maximum,and the two highest density soil types are meadow saline soil and alluvial soil. Inorganic carbon in alluvial soil is secondary carbonate,but that in cinnamon soil is primary carbonate.
出处
《干旱区资源与环境》
CSSCI
CSCD
北大核心
2014年第5期97-102,共6页
Journal of Arid Land Resources and Environment
基金
国土资源部中国地质调查局与河北省人民政府合作项目"河北农业地质调查-河北省区域生态地球化学评价"(编号1212010511212)
石家庄经济学院校内青年基金项目(编号XN201208)资助
关键词
无机碳
碳储量
碳密度
表层土壤
河北平原
inorganic carbon
carbon reserve
carbon density
surface soil
Hebei Plain
