Warming increases nutrient mobilization and gaseous nitrogen removal from sediments across cascade reservoirs

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• 作者：Xingpeng Zhou^a ; Nengwang Chen^a ; ^{nwchen@xmu.edu.cn} ; Zhihao Yan^a ; Shuiwang Duan^b
• 关键词：Sediment-water interface ; Nutrient pollution ; Climate change ; Cascade reservoir ; Jiulong River
• 刊名：Environmental Pollution
• 出版年：2016
• 出版时间：December 2016
• 年：2016
• 卷：219
• 期：Complete
• 页码：490-500
• 全文大小：1384 K
• 卷排序：219

文摘

Effects of temperature on coupled nutrient biogeochemical cycle in reservoir sediment are examined. Warming considerably increased sediment ammonium, DIN and DOC fluxes to overlying water. Warming increased sediment retention of nitrate while gaseous N (N2 and N2O) removal was limited. DRP turn to release from Fe/Al-P enriched sediment at high temperature and oxygen deficiency. Cascade reservoirs act as multi-filters in regulating nutrients mobilization and export to coast.