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Spatiotemporal distribution and national measurement of the global carbonate carbon sink
Huiwen Li;  Shijie Wang;  Xiaoyong Bai;  Weijun Luo;  Hong Tang;  Yue Cao;  Luhua Wu;  Fei Chen;   Qin Li;  Cheng Zeng;  Mingming Wang
2018
发表期刊Science of the Total Environment
卷号643页码:157-170
摘要

Themagnitudes, spatial distributions and contributions to global carbon budget of the global carbonate carbon sink (CCS) still remain uncertain, allowing the problem of national measurement of CCS remain unresolved which will directly influence the fairness of global carbon markets and emission trading. Here, based on high spatiotemporal resolution ecological, meteorological raster data and chemical field monitoring data, combining highly reliable machine learning algorithm with the thermodynamic dissolution equilibrium model, we estimated the new CCS of 0.89 +/- 0.23 petagrams of carbon per year (Pg C yr(-1)), amounting to 74.50% of global net forest sink and accounting for 28.75% of terrestrial sinks or 46.81% of the missing sink. Our measurement for 142 nations of CCS showed that Russia, Canada, China and the USA contribute over half of the global CCS. We also presented the first global fluxes maps of the CCS with spatial resolution of 0.05 degrees, exhibiting two peaks in equatorial regions (10 degrees S to 10 degrees N) and low latitudes (10 degrees N to 35 degrees N) in Northern Hemisphere. By contrast, there are no peaks in Southern Hemisphere. The greatest average carbon sink flux (CCSF), i.e., 2.12 tC ha(-1) yr(-1), for 2000 to 2014 was contributed by tropical rainforest climate near the equator, and the smallest average CCSF was presented in tropical arid zones, showing amagnitude of 0.26 tC ha(-1) yr(-1). This research estimated the magnitudes, spatial distributions, variations and contributions to the global carbon budget of the CCS in a higher spatiotemporal representativeness and expandability way, which, via multiple mechanisms, introduced an important sink in the terrestrial carbon sink system and the global missing sink and that can help us further reveal and support our understanding of global rock weathering carbon sequestration, terrestrial carbon sink system and global carbon cycle dynamicswhich make our understanding of global change more comprehensive.

关键词Carbonate Carbon Sink national Measurement missing sink Carbon Budget spatiotemporal Evolution
收录类别SCI
语种英语
文献类型期刊论文
条目标识符http://ir.gyig.ac.cn/handle/42920512-1/8876
专题环境地球化学国家重点实验室
作者单位1.State Key Laboratory of Environmental Geochemistry, Institute of Geochemistry, Chinese Academy of Sciences, 99 Lincheng West Road, Guiyang 550081, Guizhou Province, China
2.University of Chinese Academy of Sciences, Beijing 100049, China
3.Puding Karst Ecosystem Observation and Research Station, Chinese Academy of Sciences, Puding 562100, China
4.School of Geography and Environmental Sciences, Guizhou Normal University, Guiyang 550081, China
推荐引用方式
GB/T 7714
Huiwen Li;Shijie Wang;Xiaoyong Bai;Weijun Luo;Hong Tang;Yue Cao;Luhua Wu;Fei Chen; Qin Li;Cheng Zeng;Mingming Wang. Spatiotemporal distribution and national measurement of the global carbonate carbon sink[J]. Science of the Total Environment,2018,643:157-170.
APA Huiwen Li;Shijie Wang;Xiaoyong Bai;Weijun Luo;Hong Tang;Yue Cao;Luhua Wu;Fei Chen; Qin Li;Cheng Zeng;Mingming Wang.(2018).Spatiotemporal distribution and national measurement of the global carbonate carbon sink.Science of the Total Environment,643,157-170.
MLA Huiwen Li;Shijie Wang;Xiaoyong Bai;Weijun Luo;Hong Tang;Yue Cao;Luhua Wu;Fei Chen; Qin Li;Cheng Zeng;Mingming Wang."Spatiotemporal distribution and national measurement of the global carbonate carbon sink".Science of the Total Environment 643(2018):157-170.
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