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| Content Provider | Royal Society of Chemistry (RSC) |
|---|---|
| Author | Huo, Shouliang Xi, Beidou Yeager, Kevin M. Zhu, Chaowei Zan, Fengyu Liao, Haiqing Zhang, Jingtian |
| Copyright Year | 2012 |
| Abstract | In this study, the sediment profiles of total organic carbon, total nitrogen, C/N ratios, total phosphorus, N/P ratios, C/P ratios, particle sizes, and stable carbon and nitrogen isotopes (δ13C and δ15N) were used to investigate natural and anthropogenic impacts on Lake Chaohu over the past 100 years. Before 1960, Lake Chaohu experienced low productivity and a relatively steady and low nutrient input. The increasing concentration and fluxes of total organic carbon, total nitrogen, total phosphorus, together with changes in the δ13C and δ15N of organic material in the sediment cores, suggested that the anthropogenic effects on trophic status first started because of an increase in nutrient input caused by a population increase in the drainage area. With the construction of the Chaohu Dam, an increase in the utilization of fertilizer and the population growth which occurred since 1960, stable depositional conditions and increasing nutrient input resulted in a dominantly algae-derived organic matter source and high productivity. Nutrient input increased most significantly around 1980 following the rapidly growing population, with concomitant urbanization, industrial and agricultural development. This study also revealed that the concentration and distribution of nutrients varied between different areas of sediment within Lake Chaohu because of the influence of different drainage basins and pollution sources. |
| Starting Page | 804 |
| Ending Page | 816 |
| Page Count | 13 |
| File Format | HTM / HTML PDF |
| ISSN | 14640325 |
| Volume Number | 14 |
| Issue Number | 3 |
| Journal | Journal of Environmental Monitoring |
| DOI | 10.1039/c1em10760g |
| Language | English |
| Publisher | Royal Society of Chemistry |
| Access Restriction | Open |
| Subject Keyword | Lake Chaohu Chaohu Dam Sediment Carbon Nitrogen Phosphorus Δ13C Δ15N Chao Lake Human impact on the environment Chaohu Fertilizer |
| Content Type | Text |
| Resource Type | Article |
| Subject | Public Health, Environmental and Occupational Health Management, Monitoring, Policy and Law |
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