摘要
采用全国第二次土壤普查数据结合作者的实测数据，利用1：100万土壤数据库对青藏高原土壤有机质层、土壤矿质层及整个剖面的土壤有机碳密度和土壤有机碳储量分别进行了估算。结果表明：青藏高原的平均土壤有机碳密度约为C7.2kg·m^-2，较前人的C8.01-19.05kg·m^-2全国平均土壤有机碳密度偏低。青藏高原总的土壤有机碳储量约为18.37Pg，其中有机质层土壤有机碳储量约占38．14％，矿质层土壤有机碳储量则占61．86％。
Based on the 1：1000000 scale soil database of the Qinghai-Tibet Plateau,the data from the second national soil survey and the data measured by the author, soil organic carbon storages and densities in the organic horizon, mineral horizon, and whole profile of the soil in the Qinghai-Tibet Plateau were estimated. It was shown that the average soil organic carbon density was estimated around C7.2kg·m^-2,a little lower compared with the national average soil organic carbon density, C8.01-19.05kg·m^-2 obtained by the previous researches, and the soil organic carbon storage about 18.37 Pg,of which 38.14% was stored in the organic horizon,and 61.86% in the mineral horizon.
出处
《土壤学报》
CAS
CSCD
北大核心
2008年第5期933-942,共10页
Acta Pedologica Sinica
基金
中国科学院知识创新工程重要方向项目(KZCX3-SW-339-04)
国家重点基础研究发展规划项目(2005CB422005)资助
关键词
青藏高原
土壤有机碳储量
土壤有机碳密度
分布
Qinghai-Tibet Plateau
Soil organic carbon storage
Soil organic carbon density
Distribution
