地理研究 ›› 1999, Vol. 18 ›› Issue (4): 349-356.doi: 10.11821/yj1999040003

• 论文 • 上一篇    下一篇

中国陆地土壤有机碳库的估算

王绍强, 周成虎   

  1. 中国科学院地理研究所资源与环境信息系统国家重点实验室, 北京 100101
  • 收稿日期:1999-01-20 修回日期:1999-04-26 发布日期:2013-01-18
  • 通讯作者: 王绍强(1972- ),男,湖北襄樊人,1994年毕业于华中师范大学地理系,1997年在北京师范大学资源与环境科学系获得硕士学位,现为中国科学院地理研究所资源与环境信息系统国家重点实验室97博士研究生。
  • 基金资助:

    中国科学院“九五”重大A类项目(KZ95T-03-02-04);国家重点科技攻关专题资助(96-911-01-01)

Estimating soil carbon reservior of terrestrial ecosystem in China

WANG Shao-qiang, ZHOU Cheng-hu   

  1. The State Key Laboratory of Resources and Environment Information System, Institute of Geography, Chinese Academy of Sciences, Beijing 100101, China
  • Received:1999-01-20 Revised:1999-04-26 Published:2013-01-18

摘要: 土壤是陆地生态系统的核心之一,土壤有机碳库是陆地碳库的主要组成部分,在陆地碳循环研究中有着重要的作用。因而了解土壤碳循环是研究中国陆地生态系统碳循环的基础,确定土壤有机碳的储量、空间分布,对土壤碳循环的研究具有重要意义。根据中国第一次土壤普查得到的土壤各类型分布面积、采样数据、土壤有机质含量,运用GIS技术,来估算土壤碳库。经过计算,中国陆地生态系统土壤有机碳总量为1001.8×108t,平均碳密度为10.83kgC/m2,这表明中国土壤是一个巨大的碳库。

关键词: 陆地生态系统, 全球变化, 土壤碳库, 碳循环

Abstract: Soil is a core of terrestrial ecosystem, and soil organic carbon is the main part of terrestrial carbon reservior. At present, terrestrial carbon cycle is one of the important components in the research of global change, so it is important to study soil carbon cycle. One precondition of terrestrial ecosystem carbon cycle research is to understand soil carbon dynamics in China. The composition and dynamic change of soil organic carbon is more significant in soil carbon cycle research in China. However, soil organic carbon is not accurately defined in China, so people did not fully recognize its importance to global climate change. This paper adopted the soil distribution area, sampling data and soil organic content from the first soil general survey and applied the technique of GIS to estimate soil carbon reservior in China. Through calculating, the total amount of soil organic carbon is about 1001.8×108t and carbon density is about 10.83 kgC/m2 in China. This paper provided basic data and analysis method for global change research and scientific support for policy determination of CO2 emission in China.

Key words: terrestrial ecosystem, global change, soil carbon reservior, carbon cycle

PACS: 

  • X144