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Preliminary estimation of the organic carbon pool in China＇s wetlands

ISSN号：1002-0063
期刊名称：《中国地理科学：英文版》
时间：0
分类：S153.61[农业科学—土壤学;农业科学—农业基础科学] P931.7[天文地球—自然地理学]
作者机构：[1]State Key Laboratory of Remote Sensing Science, Jointly Sponsored by Institute of Remote Sensing Applications, Chinese Academy Sciences andBeijing Normal University, Beijing 100101, China, [2]Ministry of Education Key Laboratory for Earth System Modeling, Center for Earth System Science, Institute for Global Change Studies,Tsinghua University, Beijing 100084, China, [3]Department of Environmental Science, Policy and Management, University of California, Berkeley, California 94720-3114, USA, [4]College of Global Change and Earth System Science, Beijing Normal University, Beijing 100875, China
相关基金：This work was supported by the National Science and Technology Sup- porting Program （2012BAJ24B01）, the National High Technology Research and Development Program of China （2009AA12200307）, the Program of the State Key Laboratory of Remote Sensing Science （YIYOO247KZ and Y1YOO232KZ）, and the National Natural Science Foundation of China （41201445）.

作者： ZHENG YaoMin[1], NIU ZhenGuo[1], GONG Peng[1,2,3], DAI YongJiu[4], SHANGGUAN Wei[4]

关键词：土壤有机碳库, 湿地资源, 中国, 估算, 不确定性分析, 模估计, 交流计数, 湿地土壤, wetland carbon pool, inventory approach, remote sensing, soil carbon density, wetland vegetation

中文摘要：

Accurate estimation of wetland carbon pools is a prerequisite for wetland resource conservation and implementation of carbon sink enhancement plans.The inventory approach is a realistic method for estimating the organic carbon pool in China’s wetlands at the national scale.An updated data and inventory approach were used to estimate the amount of organic carbon stored in China’s wetlands.Primary results are as follows:(1) the organic carbon pool of China’s wetlands is between 5.39 and 7.25 Pg,accounting for 1.3%-3.5% of the global level;(2) the estimated values and percentages of the organic carbon contained in the soil,water and vegetation pools in China’s wetlands are 5.04-6.19 Pg and 85.4%-93.5%,0.22-0.56 Pg and 4.1%-7.7%,0.13-0.50 Pg and 2.4%-6.9%,respectively.The soil organic carbon pool of China’s wetlands is greater than our previous estimate of 3.67 Pg,but is lower than other previous estimates of 12.20 and 8-10 Pg.Based on the discussion and uncertainty analysis,some research areas worthy of future attention are presented.

英文摘要：

Accurate estimation of wetland carbon pools is a prerequisite for wetland resource conservation and implementation of carbon sink enhancement plans. The inventory approach is a realistic method for estimating the organic carbon pool in China＇s wetlands at the national scale. An updated data and inventory approach were used to estimate the amount of organic carbon stored in Chi- na＇s wetlands. Primary results are as follows：（1） the organic carbon pool of China＇s wetlands is between 5.39 and 7.25 Pg, ac- counting for 1.3%-3.5% of the global level; （2） the estimated values and percentages of the organic carbon contained in the soil, water and vegetation pools in China＇s wetlands are 5.04-45.19 Pg and 85.4%-93.5%, 0.22-0.56 Pg and 4.1%-7.7%, 0.13-0.50 Pg and 2.4%-6.9%, respectively. The soil organic carbon pool of China＇s wetlands is greater than our previous estimate of 3.67 Pg, but is lower than other previous estimates of 12.20 and 8-10 Pg. Based on the discussion and uncertainty analysis, some research areas worthy of future attention are presented.

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