Seasonal variations in the inorganic carbon system in the Pearl River (Zhujiang) estuary
- 作者：Xianghui Guo ; Wei-Jun Cai ; Weidong Zhai ; Minhan Dai ; Yongchen Wang ; Baoshan Chen
- 关键词：Pearl River estuary ; Estuarine mixing ; Dissolved inorganic carbon
- 刊名：Continental Shelf Research
- 出版年：2008
- 期刊代码：18_02784343
- 类别：ear
- 出版时间：15 July 2008
- 卷：28
- 期：12
- 页码：1424-1434
- 文件大小：901 K
摘要
Seasonal variations in the inorganic carbon system in the Pearl River estuary are examined based on data from five surveys during the spring, summer, fall, and winter seasons. Both total dissolved inorganic carbon (DIC) and total alkalinity (TAlk) values in the freshwater end-members are high in the dry season (>2700 μmol kg−1 for DIC and >2400 μmol kg−1 for TAlk) and substantially lower in the wet season (DIC and TAlk were 
1000 and 700 μmol kg−1, respectively). Riverine DIC flux and drainage basin weathering rates, however, are significantly higher in the wet season (611×109 mol yr−1 and 13.6×105 mol km−2 yr−1) than in the dry season (237×109 mol yr−1 and 5.3×105 mol km−2 yr−1).
1000 and 700 μmol kg−1, respectively). Riverine DIC flux and drainage basin weathering rates, however, are significantly higher in the wet season (611×109 mol yr−1 and 13.6×105 mol km−2 yr−1) than in the dry season (237×109 mol yr−1 and 5.3×105 mol km−2 yr−1).