| Title | Agricultural water consumption decreasing nutrient burden at Bohai Sea, China |
| Authors | Tong, Yindong Wang, Xuejun Zhen, Gengchong Li, Ying Zhang, Wei He, Wei |
| Affiliation | Tianjin Univ, Sch Environm Sci & Engn, Tianjin 300072, Peoples R China. Peking Univ, Minist Educ, Lab Earth Surface Proc, Beijing 100871, Peoples R China. China Australia Ctr Sustainable Urban Dev, Tianjin 300072, Peoples R China. Peking Univ, Coll Urban & Environm Sci, Beijing 100871, Peoples R China. Renmin Univ China, Sch Environm & Nat Resources, Beijing 100872, Peoples R China. E Tennessee State Univ, Coll Publ Hlth, Dept Environm Hlth, Johnson City, TN 37614 USA. Tianjin Univ, Sch Environm Sci & Engn, Tianjin 300072, Peoples R China. Tong, YD (reprint author), Peking Univ, Minist Educ, Lab Earth Surface Proc, Beijing 100871, Peoples R China. Tong, YD (reprint author), China Australia Ctr Sustainable Urban Dev, Tianjin 300072, Peoples R China. Zhang, W (reprint author), Renmin Univ China, Sch Environm & Nat Resources, Beijing 100872, Peoples R China. |
| Keywords | Agricultural water consumption Huanghe river Nutrient balance Nutrient burden Bohai sea CHANGJIANG YANGTZE-RIVER YELLOW-RIVER ORGANIC-CARBON FLUXES ESTUARIES NITROGEN IMPACTS CLIMATE LOADS |
| Issue Date | 2016 |
| Publisher | ESTUARINE COASTAL AND SHELF SCIENCE |
| Citation | ESTUARINE COASTAL AND SHELF SCIENCE.2016,169,85-94. |
| Abstract | In this study, we discussed the impacts of human water consumption to the nutrient burden in a river estuary, and used Huanghe River as a case study. The agricultural water consumption from the Huanghe River has significantly decreased the natural water flows, and the amount of water consumption could be almost twice as high as the water entering into the estuary. According to our calculation, agricultural water usage decreased TN outflows by 6.5 x 10(4) Mg/year and TP outflows by 2.0 x 10(3) Mg/year. These account for 74% and 77% of the total output loads. It has been widely reported that the majority of the rivers in northern China were severely polluted by nutrients. Its implication on the budget of nutrient in the estuary ecosystem is not well characterized. Our study showed that the discharge of nutrients in the coast waters from polluted rivers was over concerned. Nutrients in the polluted rivers were transported back to the terrestrial systems when water was drawn for human water consumption. The magnitudes of changes in riverine nutrient discharges even exceed the water-sediment regulation trails in the Huanghe River. It has non-negligible impact on estimating the nutrient burden in costal water ecosystem. (C) 2015 Elsevier Ltd. All rights reserved. |
| URI | http://hdl.handle.net/20.500.11897/438660 |
| ISSN | 0272-7714 |
| DOI | 10.1016/j.ecss.2015.12.006 |
| Indexed | SCI(E) |
| Appears in Collections: | 地表过程分析与模拟教育部重点实验室 城市与环境学院 |
