學(xué)術(shù)研究
近年來主要從事與地球表層過程和環(huán)境演變有關(guān)的有機地球化學(xué)和生物地球化學(xué)等方面的工作。通過對中國邊緣海區(qū)有機地球化學(xué)沉積記錄的提取，重建了東亞晚新生代植被變遷和表層海水溫度變化的歷史。通過對現(xiàn)代土壤、泥炭及水體顆粒物和沉積物中的有機質(zhì)、營養(yǎng)鹽及其碳?xì)涞凰氐难芯刻接懥私F(xiàn)代環(huán)境變化、單糖類化合物的植物指示意義、流域和海洋氮循環(huán)、以及生物標(biāo)志物的碳?xì)渫凰氐闹脖�、降水和山脈高程的指示意義等方面的科學(xué)問題。目前感興趣的研究內(nèi)容有：（1）晚新生代，特別是第四紀(jì)以來，地球環(huán)境系統(tǒng)演變的有機生物地球化學(xué)重建。這方面的工作主要集中于海洋和陸相沉積物的研究，從事沉積物中分子有機地球化學(xué)指標(biāo)及相關(guān)的C、H、N同位素的分析提取工作。目的是深入了解海洋生態(tài)系統(tǒng)、營養(yǎng)鹽循環(huán)系統(tǒng)、陸地水汽和生態(tài)系統(tǒng)在古全球變化中的相互作用及其反饋機制；（2）現(xiàn)代環(huán)境中天然有機物和氮化合物的分子及同位素地球化學(xué)特征及其對環(huán)境的響應(yīng)。通過對現(xiàn)代環(huán)境系統(tǒng)中的天然有機質(zhì)和氮循環(huán)的生物地球化學(xué)過程的了解，可以為古環(huán)境指標(biāo)的有效應(yīng)用提供科學(xué)依據(jù)。
研究領(lǐng)域
有機地球化學(xué)，生物地球化學(xué)，地球表層過程與環(huán)境演變
代表論著
1 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
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
3 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
4 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
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
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
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,
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
9 Jia G.D., Xie H.Q., Peng P.A., 2006. Contrast in surface water δ18O distributions between the Last Glacial Maximum and the Holocene in the southern South China Sea. Quaternary Science Reviews
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
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
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
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