现代地质2012，Vol.26Issue(5)：886-895,10.
内蒙古自治区土壤有机碳库储量及分布特征
Storage and Distribution of Soil Organic Carbon in Inner Mongolia
摘要
Abstract
Based on 461 soil profiles from various data sources of Inner Mongolia, the soil organic carbon density (SOCD) and reserves (SOCR) of 0 -20 cm and the whole profile in Inner Mongolia are estimated. The spatial distribution of SOCD was mapped within ArcGIS and the factors affecting SOCR and its distribution were discussed. It was found that the soil organic carbon density in 0 - 20 cm of Inner Mongolia is between 0. 63 and 15. 93 kg-m~ , and the average is 3. 68 kg·m-2. Whereas the carbon density of the whole profile is between 0. 22 -68. 77 kg·m-2 and the average is 10. 35 kg·m-2. There are differences among the soil types for this value. And the SOCR in 0 - 20 cm of Inner Mongolia are 4. 10 Pg. Meanwhile, SOCR of the whole profile are 10. 79 Pg. SOCD is controlled by various geographical factors such as temperature, precipitation, vegetation and land use type etc. Estimation result showed that when mean annual temperatures rise by IX, , the release of soil organic carbon in Inner Mongolia region is about 0. 91 Pg.关键词
内蒙古/土壤有机碳密度(SOCD)/土壤有机碳储量(SOCR)/全球变暖Key words
Inner Mongolia/ soil organic carbon density (SOCD)/ soil organic carbon reserves (SOCR)/global wanning分类
资源环境引用本文复制引用
傅野思,夏学齐,杨忠芳,李娟..内蒙古自治区土壤有机碳库储量及分布特征[J].现代地质,2012,26(5):886-895,10.基金项目
中国地质调查局地质调查项目“中国典型地区土壤碳汇源转化机理研究”(1212011087125) （1212011087125）
国土资源部公益性行业科研专项“中国主要农耕区土壤碳库与固碳潜力研究”(200911020). （200911020）
