Effects of Sunda Shelf exposure and vegetation changes on land-atmosphere carbon exchange during the Last Glacial Maximum

LI Jinlan; TIAN Jun

doi:10.16562/j.cnki.0256-1492.2022021101

Marine Geology & Quaternary Geology > 2022 > 42(2): 110-118. > DOI: 10.16562/j.cnki.0256-1492.2022021101

LI Jinlan，TIAN Jun. Effects of Sunda Shelf exposure and vegetation changes on land-atmosphere carbon exchange during the Last Glacial Maximum[J]. Marine Geology & Quaternary Geology，2022，42(2)：110-118. DOI: 10.16562/j.cnki.0256-1492.2022021101

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Effects of Sunda Shelf exposure and vegetation changes on land-atmosphere carbon exchange during the Last Glacial Maximum

LI Jinlan,
TIAN Jun^,

State Key Laboratory of Marine Geology, Tongji University, Shanghai 200092,China

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Corresponding author:
tianjun@tongji.edu.cn
Received Date: February 10, 2022
Revised Date: March 05, 2022
Accepted Date: March 05, 2022
Available Online: April 13, 2022

Graphical Abstract

Abstract

Abstract

The land exposure area of the Sunda Shelf in the southern South China Sea during the last glacial maximum (LGM) was nearly twice that in modern times. Was the Sunda Shelf a stronger carbon sink at that time? Though the study of the LGM carbon cycle depends on reliable vegetation reconstruction, both GOSAT satellite data and measured carbon density data utilized show that the role of different ecosystems in the carbon cycle could be very different. Whether there were tropical forests or savanna grassland on the Sunda Shelf during the LGM is a controversy. The land-atmosphere carbon exchange of the forest ecosystem is much greater than that of the grassland ecosystem. We used the Community Land Model (CLM4) to carry out two groups of sensitivity cases, aiming at quantifying the impacts of land area increase and vegetation distribution on land-atmosphere carbon exchange. Combining the pollen fossil evidence, our results showed that the exposed Sunda Shelf covered by the forest ecosystem in the LGM absorbed more carbon from the atmosphere at a rate of 0.16 PgC/a than in modern times. It indicated that the Sunda Shelf in LGM was a carbon sink, which was opposite to the role of other terrestrial carbon sources and was worthy of further study.
- vegetation change,
- land-atmosphere carbon exchange,
- carbon sink,
- Last Glacial Maximum,
- Sunda Shelf

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References (26)

References

[1]	Houghton R A. Balancing the global carbon budget [J]. Annual Review of Earth and Planetary Sciences, 2007, 35: 313-347. doi: 10.1146/annurev.earth.35.031306.140057
[2]	Pan Y D, Birdsey R A, Phillips O L, et al. The structure, distribution, and biomass of the world's forests [J]. Annual Review of Ecology, Evolution, and Systematics, 2013, 44: 593-622. doi: 10.1146/annurev-ecolsys-110512-135914
[3]	Melillo J M, McGuire A D, Kicklighter D W, et al. Global climate change and terrestrial net primary production [J]. Nature, 1993, 363(6426): 234-240. doi: 10.1038/363234a0
[4]	Saatchi S S, Harris N L, Brown S, et al. Benchmark map of forest carbon stocks in tropical regions across three continents [J]. Proceedings of the National Academy of Sciences of the United States of America, 2011, 108(24): 9899-9904. doi: 10.1073/pnas.1019576108
[5]	Hooijer A, Page S, Canadell J G, et al. Current and future CO₂ emissions from drained peatlands in Southeast Asia [J]. Biogeosciences, 2010, 7(5): 1505-1514. doi: 10.5194/bg-7-1505-2010
[6]	Malhi Y. The carbon balance of tropical forest regions, 1990–2005 [J]. Current Opinion in Environmental Sustainability, 2010, 2(4): 237-244. doi: 10.1016/j.cosust.2010.08.002
[7]	Tjia H D. The sunda shelf, southeast Asia [J]. Zeitschrift Für Geomorphologie, 1980, 24(4): 405-427.
[8]	De Deckker P, Tapper N J, van der Kaars S. The status of the Indo-Pacific Warm Pool and adjacent land at the Last Glacial Maximum [J]. Global and Planetary Change, 2003, 35(1-2): 25-35. doi: 10.1016/S0921-8181(02)00089-9
[9]	Heaney L R. A synopsis of climatic and vegetational change in Southeast Asia [J]. Climatic Change, 1991, 19(1-2): 53-61. doi: 10.1007/BF00142213
[10]	Taylor D, Yen O H, Sanderson P G, et al. Late Quaternary peat formation and vegetation dynamics in a lowland tropical swamp; Nee Soon, Singapore [J]. Palaeogeography, Palaeoclimatology, Palaeoecology, 2001, 171(3-4): 269-287. doi: 10.1016/S0031-0182(01)00249-8
[11]	Sun X J, Li X, Luo Y L. Vegetation and climate on the sunda shelf of the South China Sea during the last Glactiation-Pollen results from station 17962 [J]. Acta Botanica Sinica, 2002, 44(6): 746-752.
[12]	Bird M I, Taylor D, Hunt C. Palaeoenvironments of insular Southeast Asia during the Last Glacial Period: a savanna corridor in Sundaland? [J]. Quaternary Science Reviews, 2005, 24(20-21): 2228-2242. doi: 10.1016/j.quascirev.2005.04.004
[13]	Wang X M, Sun X J, Wang P X, et al. Vegetation on the sunda shelf, South China Sea, during the last glacial maximum [J]. Palaeogeography, Palaeoclimatology, Palaeoecology, 2009, 278(1-4): 88-97. doi: 10.1016/j.palaeo.2009.04.008
[14]	方精云, 刘国华, 徐嵩龄. 中国陆地生态系统的碳库[M]//王庚辰, 温玉璞. 温室气体浓度和排放监测及相关过程. 北京: 中国环境科学出版社, 1996 FANG Jingyun, LIU Guohua, XU Songling. Carbon pool of terrestrial ecosystem in China[M]//WANG Gengchen, WEN Yupu. Greenhouse Gas Concentration and Emission Monitoring and Related Processes. Beijing: China Environmental Science Press, 1996.
[15]	Xie Z B, Zhu J G, Liu G, et al. Soil organic carbon stocks in China and changes from 1980s to 2000s [J]. Global Change Biology, 2007, 13(9): 1989-2007. doi: 10.1111/j.1365-2486.2007.01409.x
[16]	徐丽, 何念鹏. 中国南北样带典型森林土壤属性数据集[J]. 中国科学数据, 2019, 4(1):73-81 doi: 10.11922/sciencedb.602 XU Li, HE Nianpeng. A dataset of forest soil properties in north-south transect of eastern China [J]. Science Data Bank, 2019, 4(1): 73-81. doi: 10.11922/sciencedb.602
[17]	Bonan G B. Forests and climate change: forcings, feedbacks, and the climate benefits of forests [J]. Science, 2008, 320(5882): 1444-1449. doi: 10.1126/science.1155121
[18]	Molengraaff G A F, Weber M. On the relation between the pleistocene glacial period and the origin of the Sunda sea (Java and South China-sea), and its influence on the distribution of coralreefs and on the land- and freshwater fauna [J]. Koninklijke Nederlandsche Akademie van Wetenschappen Proceedings, 1921, 23(1): 395-439.
[19]	李金澜, 田军. 末次冰期南海南部暴露的巽他陆架是大气碳汇?[J]. 海洋地质与第四纪地质, 2018, 38(4):155-163 LI Jinlan, TIAN Jun. The Sunda Shelf: a carbon sink during the last glacial period? [J]. Marine Geology & Quaternary Geology, 2018, 38(4): 155-163.
[20]	Qian T T, Dai A G, Trenberth K E, et al. Simulation of global land surface conditions from 1948 to 2004. Part I: forcing data and evaluations [J]. Journal of Hydrometeorology, 2006, 7(5): 953-975. doi: 10.1175/JHM540.1
[21]	Thornton P E, Rosenbloom N A. Ecosystem model spin-up: estimating steady state conditions in a coupled terrestrial carbon and nitrogen cycle model [J]. Ecological Modelling, 2005, 189(1-2): 25-48. doi: 10.1016/j.ecolmodel.2005.04.008
[22]	Thomas H, Prowe A E F, Lima D I, et al. Changes in the North Atlantic Oscillation influence CO2 uptake in the North Atlantic over the past 2 decades [J]. Global Biogeochemical Cycles, 2008, 22(4): GB4027.
[23]	Zhao M S, Running S W. Drought-induced reduction in global terrestrial net primary production from 2000 through 2009 [J]. Science, 2010, 329(5994): 940-943. doi: 10.1126/science.1192666
[24]	Zhu L K, Southworth J. Disentangling the relationships between net primary production and precipitation in southern Africa savannas using satellite observations from 1982 to 2010 [J]. Remote Sensing, 2013, 5(8): 3803-3825. doi: 10.3390/rs5083803
[25]	戴璐, Yeok F S. 末次冰期时暴露的巽他大陆架可能被热带稀树草原覆盖吗?[J]. 地球科学进展, 2017, 32(11):1147-1156 doi: 10.11867/j.issn.1001-8166.2017.11.1147 DAI Lu, Yeok F S. Was there savanna corridor on the exposed Sunda shelf during the last glacial period? [J]. Advances in Earth Science, 2017, 32(11): 1147-1156. doi: 10.11867/j.issn.1001-8166.2017.11.1147
[26]	Lehmann C E R, Archibald S A, Hoffmann W A, et al. Deciphering the distribution of the savanna biome [J]. New Phytologist, 2011, 191(1): 197-209. doi: 10.1111/j.1469-8137.2011.03689.x