嘉陵江梯级水库群溶解无机碳同位素的时空变化特征

doi:10.3969/j.issn.1007-2861.2015.01.009

Abstract

Abstract: The Jialing River and its cascade reservoirs were investigated. Wedensely collected water samples along the Jialing River in August 2008 (rain season) and February 2009 (dry season). We determine the contents and isotopic compositions of dissolved inorganic carbon (DIC), and discuss the sources and spatio-temporal variations of DIC. The results show that the average DIC and 13CDIC were 2 018 μmol/L and −8.6‰ in a rainy season, and 3 150 μmol/L and −6.0‰ in a dry season, showing obvious seasonal variations. The ¹³C_DIC values in winter were heavier than in summer, similar to undammed rivers but different from lakes and reservoirs. This indicates that the hydro-geochemical characteristics of waters in the cascade reservoirs of Jialing River are similar to natural rivers

CLC Number:

X 142

LI Xiao-Dong, LIU Xiao-Long, YANG Zhou, LI Qin-Kai, HUANG Jun. Spatial and seasonal variation of dissolved inorganic carbon isotope compositions in the cascade reservoirs of the Jialing River[J]. Journal of Shanghai University（Natural Science Edition）, 2015, 21(03): 286-293.

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Spatial and seasonal variation of dissolved inorganic carbon isotope compositions in the cascade reservoirs of the Jialing River

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