长江科学院院报2016，Vol.33Issue(8)：28-33,47,7.DOI:10.11988/ckyyb.20150289
某富营养化池塘夏季温室气体通量的昼夜变化
Diel Greenhouse Emissions from an Eutrophic Pond in Summer
摘要
Abstract
Methane (CH4) and Carbon dioxide (CO2) emission pathways in summer were quantified during a 48 hours online survey of a subtropical shallow pond in Yichang , China .We separated the diel bubble and diffusion gas fluxes measured by the DLT-100 Analyzer (Los Gatos Research, USA) thanks to its high sampling frequency . The total emission fluxes of CH4 and CO2were 595.2 mg/(m2· d) and 1450.8 mg/(m2· d) respectively.Bubble emissions of CH4 and CO2 accounted for 99.7%of the total CH4emission and only 3.0%of the total CO2 from the pond.Bubble emissions are highly time-variable in the observation period , with the biggest CH 4 bubbling rate of 424.28 mg/(m2· h), accounting for 35.75%of the two days’ total bubbling CH4 emissions, but ebullition CH4 flux was mainly located at <20 mg/(m2· h).The maximums of the diel diffusion CH 4 and CO2 flux were 6.0 and 6. 5 times of the responding minimums respectively .关键词
温室气体/气体扩散通量/冒泡通量/野猪林池塘/富营养化Key words
greenhouse gases/diffusion flux/bubbling flux/Yezhulin pond/eutrophic pond分类
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张成,龙丽,吕新彪,李迎晨,彭峰..某富营养化池塘夏季温室气体通量的昼夜变化[J].长江科学院院报,2016,33(8):28-33,47,7.基金项目
国家自然科学基金项目（41273110）；湖北省自然科学基金项目（2014CFB672）；湖北省教育厅科研计划项目（Q20151209）；湖北省自然科学基金指导性计划项目 （）
