研究队伍- 姓名： 贾国东
- 性别： 男
- 职务：
- 职称： 研究员
- 学历：
- 电话： 020-85290157
- 传真：
- 电子邮件： jiagd@gig.ac.cn
- 通讯地址： 广州市天河区科华街511号中国科学院广州地球化学研究所
1969年生，河北人。中国矿物岩石地球化学学会和第四纪科学研究会会员。近年来主要从事与地球表层过程和环境演变有关的有机地球化学和生物地球化学等方面的工作。通过对中国边缘海区有机地球化学沉积记录的提取，重建了东亚晚新生代植被变迁和表层海水温度变化的历史。通过对现代土壤、泥炭及水体颗粒物和沉积物中的有机质、营养盐及其碳氢氮同位素的研究探讨了近现代环境变化、单糖类化合物的植物指示意义、流域和海洋氮循环、以及生物标志物的碳氢同位素的植被、降水和山脉高程的指示意义等方面的科学问题。目前感兴趣的研究内容有：（1）晚新生代，特别是第四纪以来，地球环境系统演变的有机生物地球化学重建。这方面的工作主要集中于海洋和陆相沉积物的研究，从事沉积物中分子有机地球化学指标及相关的C、H、N同位素的分析提取工作。目的是深入了解海洋生态系统、营养盐循环系统、陆地水汽和生态系统在古全球变化中的相互作用及其反馈机制；（2）现代环境中天然有机物和氮化合物的分子及同位素地球化学特征及其对环境的响应。通过对现代环境系统中的天然有机质和氮循环的生物地球化学过程的了解，可以为古环境指标的有效应用提供科学依据。
简 历：
社会任职：
- 有机地球化学，生物地球化学，地球表层过程与环境演变
研究方向：
获奖及荣誉：
1 Chen F.J., Jia G.D.*, 2009. Spatial and seasonal variations in 13C and 15N of particulate organic matter in a dam-controlled subtropical river. River Research and Applications, doi: 10.1002/rra.1225. in press.
2 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, doi: 10.1007/s10533-009-9316-x. in press.
3 Wei K., Jia G.D.*, 2009. Soil n-alkane 13C along a mountain slope as an integrator of altitude effect on plant species 13C. Geophysical Research Letters, 36, doi:10.1029/2009GL038294.
4 Jia G.D., Wei K., Chen F.J., Peng P.A., 2008. Soil n-alkane D vs. altitude gradients along Mount Gongga, China. Geochimica et Cosmochimica Acta, 72: 5165-5174.
5 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.
6 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.
7 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(24): 3921-3927.
8 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.
9 Jia G.D., Xie H.Q., Peng P.A., 2006. Contrast in surface water 18O distributions between the Last Glacial Maximum and the Holocene in the southern South China Sea. Quaternary Science Reviews, 25: 1053-1064.
10 Jia G.D., Peng P.A., Zhao Q.H., Jian Z.M., 2003. Changes in terrestrial ecosystem since 30 Ma in East Asia: stable isotope evidence from black carbon in the South China Sea. Geology, 31: 1093-1096.
11 Jia G.D., and Peng P.A., 2003. Spatial and temporal signatures of sedimented organic matter in the Lingding Bay (Pearl estuary), Southern China. Marine Chemistry, 82: 47-54.
12 Jia G.D., Peng P.A., Fang D.Y., 2002. Burial of different types of organic carbon in core 17962 from South China Sea since the last glacial period. Quaternary Research, 58: 93-100.
13 Jia G.D., Peng P.A., Jian Z.M., Wang P.X., Fu J.M., 2000. The sedimentary records of black carbon in Nansha sea area since the last glaciation. Chinese Science Bulletin, 45: 1594-1597.
