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Name: Guodong JIA (贾国东)
Position: Research Professor
Department: CAS Key Laboratory of Marginal Sea Geology
Email: jiagd@gig.ac.cn

Research

My research area is the C, H, O, N isotopic and/or organic biogeochemistry. I am particularly interested in problems related to paleo and modern climatic and environmental change, e.g., determination and interpretations of 13C, 14C, 2H, and 15N in sedimentary organic compounds, development of new isotopic and organic proxies for paleoenvironmental reconstructions, and exploration the interaction between climate, environment and ecosystems using biogeochemical tracers.

My current projects include late Cenozoic and Quaternary paleoenvironmental reconstructions using biomarkers and their isotopes in marine and lacustine sediments in the South China (Sea), identification of biogeochemical signals of human-induced environmental changes from sediment cores in the inner shelf in the northern South China Sea, and molecular and nutrient dynamical processes along the path from the Pear River to the South China Sea. 
 

Research:

Recent Publications:
1. Li, Z.Y., Jia G.D., 2011, Separation of total nitrogen into organic and inorganic forms from sediments for isotopic analysis. Organic Geochemistry, 42: 296–299 DOI: 10.1016/j.orggeochem.2011.01.004.
2. Rao, Z.G., Wu, Y., Zhu, Z.Y., Jia, G.D., Henderson, A., 2011. Is the maximum carbon number of long-chain n-alkanes an indicator of grassland or forest? Evidence from surface soils and modern plants. Chinese Science Bulletin, 56: 1714-1720 DOI: 10.1007/s11434-011-4418-y.
3. Sun, Q., Chu, G.Q., Liu, M.M., Xie, M.M., Li, S.Q., Ling, Y., Wang, X.H., Shi, L.M., Jia, G.D., Lü, H.Y., 2011. Distributions and temperature dependence of branched glycerol dialkyl glycerol tetraethers in recent lacustrine sediments from China and Nepal. Journal of Geophysical Research, 116, G01008, doi:10.1029/2010JG001365.
4. Jia, G.D., Chen, F.J., 2010. Monthly variations in nitrogen isotopes of ammonium and nitrate in wet deposition at Guangzhou, south China. Atmospheric Environment, 44: 2309–2315 DOI: 10.1016/j.atmosenv.2010.03.041.
5. Zhang, J., Yu, H., Jia, G.D., Chen, F.J., Liuu, Z.X., 2010. Terrestrial n-alkane signatures in the middle Okinawa Trough during the post-glacial transgression: control by sea level and paleovegetation confounded by offshore transport. Geo-Marine Letters, 30: 143–150 DOI: 10.1007/s00367-009-0173-3.
6. Rao, Z.G., Zhu, Z.Y., Jia, G.D., Chen, F.H., Barton, L., Zhang, J.W., Qiang, M.R., 2010. Relationship between climatic conditions and the relative abundance of modern C3 and C4 plants in three regions around the North Pacific. Chinese Science Bulletin, 55: 1931–1936 DOI: 10.1007/s11434-010-3101-z.
7. Chen, F.J., Jia, G.D., 2009. Spatial and seasonal variations in δ13C and δ15N of particulate organic matter in a dam-controlled subtropical river. River Research and Applications, 25: 1169–1176 DOI: 10.1002/rra.1225.
8. Chen, F.J., Jia, G.D., Chen J.Y., 2009. Nitrate sources and watershed denitrification inferred from nitrate dual isotopes in the Beijiang River, south China. Biogeochemistry, 94: 163–174.
9. Wei, K., Jia, G.D., 2009. Soil n-alkane δ13C along a mountain slope as an integrator of altitude effect on plant species δ13C. Geophysical Research Letters, 36, L11401, DOI: 10.1029/2009GL038294.
10. Rao, Z.G., Zhu, Z.Y., Jia, G.D., Henderson, A.C.G., Xue, Q., Wang, S.P., 2009. Compound specific δD values of long chain n-alkanes derived from terrestrial higher plants are indicative of the δD of meteoric waters: Evidence from surface soils in eastern China. Organic Geochemistry, 40: 922–930 DOI: 10.1016/j.orggeochem.2009.04.011.
11. Peterse, F., van der Meer, M. T. J., Schouten, S., Jia, G., Ossebaar, J., Blokker, J., Sinninghe Damsté, J. S. 2009. Assessment of soil n-alkane δD and branched tetraether membrane lipid distributions as tools for paleoelevation reconstruction. Biogeosciences, 6: 2799–2807 www.biogeosciences.net/6/2799/2009/.
12. Yu, H., Liu, Z.X., Berné, S., Jia, G.D., Xiong, Y.Q., Dickens, G.R., Wei G.J., Shi, X.F., Liu, J.P., Chen F.J., 2009. Variations in temperature and salinity of the surface water above the middle Okinawa Trough during the past 37 kyr. Palaeogeography, Palaeoclimatology, Palaeoecology, 2009, 281: 154–164 DOI: 10.1016/j.palaeo.2009.08.002.
13. Jia, G.D., Wei, K., Chen, F.J., Peng, P.A., 2008. Soil n-alkane δD vs. altitude gradients along Mount Gongga, China. Geochimica et Cosmochimica Acta, 72: 5165–5174 DOI: 10.1016/j.gca.2008.08.004.
14. Jia, G.D., Dungait, J.A.J., Bingham, M.B., Valiranta, M., Korhola, A., Evershed, R.P., 2008. Neutral monosaccharides as biomarker proxies for bog-forming plants for application to palaeovegetation reconstruction in ombrotrophic peat deposits. Organic Geochemistry, 39: 1790–1799 DOI: 10.1016/j.orggeochem.2008.07.002.
15. Jia, G.D., Chen, F.J., Peng, P.A., 2008. Sea surface temperature differences between the western equatorial Pacific and northern South China Sea since the Pliocene and their paleoclimatic implications. Geophysical Research Letters, 35, L18609, DOI: 10.1029/2008GL034792.
16. Rao, Z.G., Jia, G.D., Zhu, Z.Y., Wu, Y., Zhang, J.W., 2008. Comparison of the carbon isotope composition of total organic carbon and long-chain n-alkanes from surface soils in eastern China and their significance. Chinese Science Bulletin, 53: 3921–3927 DOI: 10.1007/s11434-008-0296-3.
17. Yu, H., Xiong, Y.Q., Liu, Z.X., Berné, S., Huang, C.-Y., Jia, G.D., 2008. Evidence for the 8,200 a B.P. cooling event in the middle Okinawa Trough. Geo-Marine Letters, 28: 131–136 DOI: 10.1007/s00367-007-0095-x.
18. Xie, H.Q., Jia, G.D., Peng, P.A., Shao, L., 2007. Sea surface temperature variations in the southern South China Sea over the past 160 kyr. Acta Oceanologica Sinica, 46: 49-55.
19. Zhou, H.Y., Li, T.G., Jia, G.D, Zhu, Z.Y., Chi, B.Q., Cao, Q.Y., Sun, R.T., Peng, P.A., 2007. Sea surface temperature reconstruction for the middle Okinawa Trough during the last glacial–interglacial cycle using C37 unsaturated alkenones. Palaeogeography, Palaeoclimatology, Palaeoecology, 246: 440–453 DOI: 10.1016/j.palaeo.2006.10.011.