Estimation of soil carbon storage change from land use and management at a high spatial resolution in China during 2000-2020

被引：0
|
作者：
Tong R. [1 ,2 ]
Liang X. [1 ,2 ,3 ]
Guan Q. [1 ,2 ,3 ]
Song Y. [1 ]
Chen Y. [3 ]
Wang Q. [2 ,3 ]
Zheng L. [4 ]
Jin Q. [4 ]
Yu Y. [4 ]
He J. [5 ]
Xiong X. [6 ]
Liao W. [7 ]
机构：
[1] National Engineering Research Center for Geographic Information System, China University of Geosciences, Wuhan
[2] Technology Innovation Center for Intelligent Monitoring and Spatial Regulation of Land Carbon Sink, MR of China, China University of Geosciences, Wuhan
[3] School of Geography and Information Engineering, China University of Geosciences, Wuhan
[4] Information Center of Department of Natural Resources of Hubei Province, Wuhan
[5] Geological Environmental Center of Hubei Province, Wuhan
[6] Guangdong Province Academy of Environmental Science, Guangzhou
[7] School of Geography and Planning, Sun Yat-sen University, Guangzhou
来源：
Dili Xuebao/Acta Geographica Sinica | 2023年 / 78卷 / 09期
基金：
中国国家自然科学基金;
关键词：
carbon sinks; carbon sinks from management; high resolution; land use change; soil carbon storage;
D O I：
10.11821/dlxb202309006
中图分类号：
学科分类号：
摘要：
Soil organic carbon (SOC) storage and soil carbon sinks play a crucial role in the global carbon cycle of terrestrial ecosystem. However, many previous studies of soil carbon storage and sinks utilized low- resolution land use dataset, with limited focus on soil carbon sinks from farmland and grassland management. To address this issue, this study employed a series of accounting models to estimate the carbon sink from farmland and grassland management, the carbon sink from forest management, changes in soil carbon storage, changes in carbon storage due to land use conversion from 2000 to 2020, as well as the soil carbon storage in China in 2000 and 2020 using a 30 m-resolution land use dataset. The results showed that the national carbon sink from farmland management in China was approximately 17.918 Tg C a- 1 and the carbon sink from grassland management was approximately 20.171 Tg C a- 1 during 2000- 2020. The carbon sink from forest management in China was approximately 81.622 Tg C a- 1 during 2000- 2020. The soil carbon storage (0- 100 cm) in China increased from 86.074 Pg C in 2000 to 86.771 Pg C in 2020. The soil carbon storage increased by approximately 34.850 Tg C a- 1 from 2000 to 2020. The land use transformation during the study period resulted in a decrease of approximately 17.621 Tg C a-1 in soil carbon storage. The findings of this study can help researchers understand China's carbon storage and provide scientific data to China's 2060 Carbon Neutrality Target. © 2023 Science Press. All rights reserved.
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页码：2209 / 2222
页数：13
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