Summer Greenhouse Gases Exchange Flux Across Water-air Interface in Three Water Reservoirs Located in Different Geologic Setting in Guangxi, China

Due to special hydrogeochemical characteristics of calcium-rich, alkaline and DIC-rich ( dissolved inorganic carbon) environment controlled by the weathering products from carbonate rock, the exchange characteristics, processes and controlling factors of greenhouse gas (CO2 and CH4) across water-air...

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Bibliographic Details
Published inHuanjing kexue Vol. 36; no. 11; p. 4032
Main Authors Li, Jian-hong, Pu, Jun-bing, Sun, Ping-an, Yuan, Dao-xian, Liu, Wen, Zhang, Tao, Mo, Xue
Format Journal Article
LanguageChinese
Published China 01.11.2015
Subjects
Air Pollutants - analysis
Carbon
Carbon Dioxide - analysis
Carbonates
China
Gases - analysis
Geology
Groundwater
Methane - analysis
Seasons
Water
Water Supply
China
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Summary:Due to special hydrogeochemical characteristics of calcium-rich, alkaline and DIC-rich ( dissolved inorganic carbon) environment controlled by the weathering products from carbonate rock, the exchange characteristics, processes and controlling factors of greenhouse gas (CO2 and CH4) across water-air interface in karst water reservoir show obvious differences from those of non-karst water reservoir. Three water reservoirs (Dalongdong reservoir-karst reservoir, Wulixia reservoir--semi karst reservoir, Si'anjiang reservoir-non-karst reservoir) located in different geologic setting in Guangxi Zhuang Autonomous Region, China were chosen to reveal characteristics and controlling factors of greenhouse gas exchange flux across water-air interface. Two common approaches, floating chamber (FC) and thin boundary layer models (TBL), were employed to research and contrast greenhouse gas exchange flux across water-air interface from three reservoirs. The results showed that: (1) surface-layer water in reservoir area and di
ISSN:0250-3301
DOI:10.13227/j.hjkx.2015.11.012