世界泥炭地有机碳储量和有机碳密度

发布时间：2018-10-24 10:38

【摘要】：泥炭地是全球重要的有机碳库,在全球碳循环和气候变化中起着重要作用。在已有的对全球和各大洲泥炭地面积和泥炭储量估算结果的基础上,结合有机碳含量的数据,估算世界、各大洲和主要国家的泥炭地有机碳储量,得到如下结果:世界泥炭地有机碳储量为2 381.34×108t。各大洲泥炭地有机碳储量分布不均,北美洲最为丰富,储量为1 098.64×108t,占总储量的46.14%;其次是欧洲和亚洲,分别占总储量的27.41%和22.89%。由于各国对泥炭地的界定不一致,缺乏泥炭层厚度、泥炭容重等重要指标的基础数据,或者由于这些指标统计核算的口径不同,导致很难对泥炭地有机碳储量进行准确估算。最后分析了影响泥炭地有机碳储量动态变化的主要影响因素,以期为泥炭资源可持续利用和保护泥炭地碳储存功能提供科学依据。
[Abstract]:Peat land is an important organic carbon pool in the world and plays an important role in the global carbon cycle and climate change. On the basis of existing estimates of peat land area and peat reserves on the global and continental scales, combined with data on organic carbon content, to estimate the organic carbon reserves of peat fields in the world, on all continents and in major countries, The results are as follows: the storage of organic carbon in peat land is 2 381.34 脳 10 8 t. The distribution of organic carbon in peat land on different continents is uneven, North America is the most abundant, its reserves are 1 098.64 脳 10 ~ 8 t, accounting for 46.14% of the total reserves, followed by Europe and Asia, accounting for 27.41% and 22.89% of the total reserves, respectively. Because the definition of peat land is not consistent, the basic data of peat layer thickness and peat bulk density are lacking, or because of the different caliber of statistical accounting of these indexes, it is very difficult to estimate accurately the storage of organic carbon in peat land. Finally, the main influencing factors on the dynamic change of organic carbon storage in peat land were analyzed in order to provide scientific basis for sustainable utilization of peat resources and protection of carbon storage function in peat land.
【作者单位】：中国人民大学环境学院;中国科学院湿地生态与环境重点实验室中国科学院东北地理与农业生态研究所;中国科学院大学;
【基金】：中国人民大学科学研究基金(中央高校基本科研业务费专项资金)项目(13XNI004)资助
【分类号】：S153.6;P966

【参考文献】