| Issue |
E3S Web of Conf.
Volume 406, 2023
2023 9th International Conference on Energy Materials and Environment Engineering (ICEMEE 2023)
|
|
|---|---|---|
| Article Number | 03014 | |
| Number of page(s) | 4 | |
| Section | Pollution Control and Ecosystem Management | |
| DOI | https://doi.org/10.1051/e3sconf/202340603014 | |
| Published online | 31 July 2023 | |
Study on Spatial and Temporal Distribution of Nutrient Salts in Typical Seaward Rivers in Hainan Island
Sanya Oceanographic Institute, Ocean University of China, Sanya 572024, China
* e-mail address: sunshineofsansiro@163.com
Hainan Island, China’s second largest island, is located in the tropics and its rivers are significantly affected by precipitation. With the construction of free trade port with Chinese characteristics, Hainan Island’s industry, agriculture, tourism and urbanization have developed in an all-round way. With the rapid development of economy, water environment ecology has been destroyed. Based on the two seasons of drought and rain, this paper took Ningyuan River and Wanquan River as the research object to study the spatial and temporal distribution of nitrogen and phosphorus nutrients in the rivers entering the sea in Hainan, and found that the concentration of nutrients in Ningyuan River was higher than that in Wanquan River. The total nitrogen pollution in dry season was higher than that in rainy season, and that in tributaries was higher than that in main stream. The maximum nitrogen content in Ningyuan River reached 2.99 mg/L and 2.37 mg/L in the dry season and rainy season, and human activities were the main reason for the increase of nutrient concentration.
© The Authors, published by EDP Sciences, 2023
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