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    题名 作者 年代 出处 被引量
1CarbonisotopiccompositionandfluxofparticulateorganicmatterintheChangjingRiver显示文摘CarbonisotopiccompositionandfluxofparticulateorganicmatterintheChangjingRiverCaiDeling,HanYibing(ReceivedJune5,1996;acceptedJ...Cai Deling Han Yibing(Received June 5, 1996 acceptedJuly 13, 1997) 1998Acta Oceanologica Sinica1998,17,3:5
2Organic carbon and nitrogen isotopes in surface sediments from the western Arctic Ocean and their implications for sedimentary environments显示文摘CHEN Zhihua SHI Xuefa CAI Deling HAN Yibing YANG Zuosheng 2006Acta Oceanologica Sinica2006,25,5:4
3Burial fluxes and sources of organic carbon in sediments of the central Yellow Sea mud area over the past 200 years显示文摘Long-term changes of composition,sources and burial fluxes of TOC(total organic carbon) in sediments of the central Yellow Sea mud area and their possible affecting factors are discussed in this paper.Firstly,similarity analysis is employed to confirm that the carbon burial features resulted from two collected cores are typical in the central Yellow Sea mud area where YSWC(Yellow Sea Warm Current) is prevalent.On this basis,the burial flux of TOC here was considered to be 235.5–488.4 μmol/(cm2?a) since the first industrial revolution,accounting for about 70%–90% among burial fluxes of TC(total carbon) in the sediments.Compared TOC/TC ratio in the two cores with that in other marine sediments worldwide,we suggest that the growth of calcareous/non-calcareous organisms and dissolution of IC(inorganic carbon) are important factors controlling the TOC/TC ratio in sediment.Results of two-end mixed model based on δ13C data indicate that marine-derived organic carbon(OCa)is the main part among total burial organic carbon which accounts for a ratio over 85%.Due to the high TOC/TC ratio in the two cores,TC in the sediments also mainly exists as OCa,and the proportion of OCa is about 60%–80%.Away from the shore and relatively high primary production in upper waters are the main reasons that OCa is predominant among all burial OC in sediments of the central Yellow Sea mud area.Burial of OC in this mud area is probably mainly influenced by the human activities.Although the economic development during the late 19 th century caused by the first industrial revolution in China did not obviously increase the TOC burial fluxes in the sediments,the rise of industry and agriculture after the founding of new China has clearly increased the TOC burial flux since 1950 s.Otherwise,we also realize that among TC burial fluxes,TIC account for about 10%–30% in sediments of the central Yellow Sea mud area,so its burial could not be simply ignored here.Distinct from TOC burial,long-term TIC burial fluxes variations relate with climate changes more closely:the East Asian summer monsoon may influence the strength of the Huanghe River(Yellow River) flood,which could further affect the transport of terrestrial IC from land to the central Yellow Sea as well as the burial of these IC in the sediments.YANG Shu YANG Qian LIU Sai CAI Deling QU Keming SUN Yao 2015Acta Oceanologica Sinica2015,34,10:3
4Sources and transport of particulate organic carbon in the Amazon River and its estuary显示文摘Stable carbon isotope ratios have been used to study the sources of particulate organic carbon(POC) in the Amazon River and its tributaries, and to examine the transport of the riverine POC intothe oceanic environment. POC in the upper reaches of the Amazon River has more positive δ 13C values(--24.5‰ to -- 28.0‰) than that in the middle and lower reaches (--27.9‰ to -- 30.1‰). Theδ 13C of POC from the tributaries is generally more negative than that observed in the Amazon mainchannel. This δ 13C datum shows that the POC in the Amazon main channel is predominantly of terres-trial origin rather than a result of in situ production. A large range of δ 13C values (--17.5‰ to -28.4‰) is observed in the Amazon Estuary and plume. and is considered as the result of theCai Deling F.C.Tan J.M.Edmond 1989Acta Oceanologica Sinica1989,8,4:1
5A preliminary study on benthos food web structure oftidal zone in the Laoshan Bay by using stable carbon isotopes显示文摘By anayses of carbon isotopic composition (δ13C values) of the benthos collected in the Laoshan Bay in August 1993 and February and May 1994, it is found that the main food sources of the benthos can be divided into four groups in terms of carbon isotope composition: Particulate Organic Matter (POM), benthic diatoms, benthic macroalgae and the organic matter in sediments. The results show that the carbon isotopic composition of the benthic animals has a close relation with that of the food they take in. The Carbon isotopic compositions of benthos may be useful in elucidating their food sources. The carbon isotopic data have confirmed that POM is the main food source of the benthic filter feeders such as bivalves; crustaceans have a wide range of δ13C values, showing their food source has diversity; benthic diatoms are an important fraction of the food for most of gastropods. A preliminary investigation of the benthic-pelagic coupling in that region using the stable carban isotopic tracers has confirmed the importance of POM as a food source for benthos in this region, but the organic matter in sediments and benthic diatoms are also relatively important for a lot of benthic animals. The benthic-pelagic coupling in the Laoshan Bay temperate ecosystem is not so tight as that in ecosystems at higher latitudes such as northeastern water polynya.Cai Deling Hong Xuguang Mao Xinghua Zhang Shufang Gao Sulan 2000Acta Oceanologica Sinica2000,19,4:1
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