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您的检索式：作者名="DING WenCi"
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| 1 | Stable carbon isotopes in the shell of Corbicula fluminea (Müller 1774): Implications for understanding environmental changes in drainage basins显示文摘Dissolved inorganic carbon (DIC) is a primary constituent of the aquatic geochemistry of terrestrial ecosystems. Changes in DIC concentration and its isotopic composition are closely associated with environmental changes in the drainage basin. Thus, a better understanding of DIC may lead to improved characterization of environmental changes. Corbicula fluminea (Müller 1774), a bivalve native to southeast Asia and a dominant invasive species in many aquatic environments around the world, has the poten-tial to record DIC information, particularly because of its sequential skeletal deposition. Analysis of the stable carbon isotope composition (δ 13C) of the shell and the aquatic DIC in the Xijiang River drainage basins in southern and western China allowed us to determine that changes in δ 13C in the skeleton significantly correlated with those of DIC (P < 0.01, r = 0.63). These results indicate that the isotopic signature of the shell reflects that δ 13C of the DIC in ambient water. The temporal resolution was at the seasonal scale. Metabolic effect does not change the co-variation, even though it makes the shell δ 13C 1.4‰ lower statistically than that of DIC. δ 13C of DIC in creeks of some watershed areas may experience large temporal changes characterization of these changes requires high sampling resolution of the shell. This problem makes the clams in these areas less preferable for reconstruc-tion of environmental changes. The present findings provide the basis for recovering paleoenvironmental changes and carbon cycles in a watershed through analysis of fossil shells of C. fluminea, which are common in some lacustrine and/or riverine sedi-ment sequences. | ZHOU Hui LIU CongQiang JIANG Qian JIANG Wei ZHAO YanLong DING WenCi YAN Hui | 2010 | Chinese Science Bulletin2010，55，36： | 2 |
| 2 | Characterization of PM2.5 Mass Concentration in the Onshore of Sanya, China显示文摘Numbers of real-time data(E-BAM)of PM2.5 were collected in the period from Jan 8th 2012 to Jan 1st 2013 at the laboratory of Tropical Ocean University(Sanya,China).The average mass concentration was 19.7μg/m³.The highest 40.5μg/m³in October compared to the lowest 14.1μg/m³in July.From a seasonal perspective,the average PM2.5 mass concentration in fall and winter are relatively higher than that in both spring and summer.On the basis of satellite map of fire points and backward trajectories of the air masses,we primarily deduced that the PM2.5 in Sanya may be caused by the biomass burning and industrial pollutants from the area of Pearl River Delta of China and the Indo-China peninsula(e.g.Vietnam,Laos). | Ping Wang Chao Han Youzhi Zhao Wenci Ding Zengzeng Li | 2020 | Journal of Atmospheric Science Research2020，3，2： | 0 |
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