皖江经济带土壤碳储量与有机碳密度空间分布特征研究  

A STUDY ON THE FEATURES OF SPATIAL DISTRIBUTION OF SOIL CARBON STORAGE AND ORGANIC CARBON DENSITY IN THE WANJIANG ECONOMIC ZONE

作　　者：张笑蓉 陈富荣[1] 邢润华[1] 梁红霞[1] ZHANG Xiao-rong;CHEN Fu-rong;XING Run-hua;LIANG Hong-xia(Institute of Geological Survey of Anhui Province,Hefei,Anhui 230001,China)

机构地区：[1]安徽省地质调查院(安徽省地质科学研究所),安徽合肥230001

出　　处：《安徽地质》2021年第4期340-343,384,共5页Geology of Anhui

摘　　要：本文利用1∶250000土地质量地球化学调查数据成果对皖江经济带区域内进行碳储量及碳密度分布研究,研究表明:皖江经济带区域0~0.2m表层土层有机碳储量为262.16Mt,有机碳密度平均值为3.57kg/m^(2);区域内山地、林地固碳能力较高,有机碳含量特征受土地利用等人为活动以及地貌、植被等因素影响最为强烈;土壤有机碳区域上呈现东南部皖南山地区、西部皖西山地区和北部丘陵区呈高密度,中部波状平原和沿江丘陵平原地带呈低密度分布的特征。In this paper,the distribution of carbon storage and carbon density in the Wanjiang Economic Zone has been studied based on 1:250,000 land quality geochemical survey data,indicating that the organic carbon storage of 0-0.2 m topsoil in the Wanjiang Economic Zone is 262.16 Mt,and the average organic carbon density is 3.57 kg/m^(2).The carbon sequestration capacity is high for the mountain and forest lands in the zone,and characteristically,the organic carbon content is most strongly affected by human activities such as land use,as well as landform,vegetation and other factors.Regionally,the soil organic carbon density is high in the southern Anhui mountainous area in the southeast of the zone,in the western Anhui mountainous area in the west,and also in the northern hilly area,while it is low in the central undulating plains and the hilly plains along the Yangtze River.

关 键 词：碳储量 皖江经济带 土地质量调查 

分 类 号：P595[天文地球—地球化学]