Ammonium Nitrogen Streamflow Transport Modelling and Spatial Analysis in Two Chinese Basins
Ammonium nitrogen (NH<sub>4</sub><sup>+</sup>-N), which naturally arises from the decomposition of organic substances through ammonification, has a tremendous influence on local water quality. Therefore, it is vital for water quality protection to assess the amount, sources,...
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MDPI AG
2022-01-01
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| Series: | Water |
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| author | Jingchen Yin Haitao Chen Yuqiu Wang Lifeng Guo Guoguang Li Puzhou Wang |
| author_facet | Jingchen Yin Haitao Chen Yuqiu Wang Lifeng Guo Guoguang Li Puzhou Wang |
| author_sort | Jingchen Yin |
| collection | DOAJ |
| description | Ammonium nitrogen (NH<sub>4</sub><sup>+</sup>-N), which naturally arises from the decomposition of organic substances through ammonification, has a tremendous influence on local water quality. Therefore, it is vital for water quality protection to assess the amount, sources, and streamflow transport of NH<sub>4</sub><sup>+</sup>-N. SPAtially Referenced Regressions on Watershed attributes (SPARROW), which is a hybrid empirical and mechanistic modeling technique based on a regression approach, can be used to conduct studies of different spatial scales on nutrient streamflow transport. In this paper, the load and delivery of NH<sub>4</sub><sup>+</sup>-N in Poyang Lake Basin (PLB) and Haihe River Basin (HRB) were estimated using SPARROW. In PLB, NH<sub>4</sub><sup>+</sup>-N load streamflow transport originating from point sources and farmland accounted for 41.83% and 32.84%, respectively. In HRB, NH<sub>4</sub><sup>+</sup>-N load streamflow transport originating from residential land and farmland accounted for 40.16% and 36.75%, respectively. Hence, the following measures should be taken: In PLB, it is important to enhance the management of the point sources, such as municipal and industrial wastewater. In HRB, feasible measures include controlling the domestic pollution and reducing the usage of chemical fertilizers. In addition, increasing the vegetation coverage of both basins may be beneficial to their nutrient management. The SPARROW models built for PLB and HRB can serve as references for future uses for different basins with various conditions, extending this model’s scope and adaptability. |
| first_indexed | 2024-03-10T00:20:23Z |
| format | Article |
| id | doaj.art-f63835fb5b1a4675aded3b859daa787c |
| institution | Directory Open Access Journal |
| issn | 2073-4441 |
| language | English |
| last_indexed | 2024-03-10T00:20:23Z |
| publishDate | 2022-01-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Water |
| spelling | doaj.art-f63835fb5b1a4675aded3b859daa787c2023-11-23T15:44:38ZengMDPI AGWater2073-44412022-01-0114220910.3390/w14020209Ammonium Nitrogen Streamflow Transport Modelling and Spatial Analysis in Two Chinese BasinsJingchen Yin0Haitao Chen1Yuqiu Wang2Lifeng Guo3Guoguang Li4Puzhou Wang5College of Environmental Science and Engineering, Nankai University, Tianjin 300350, ChinaCollege of Environmental Science and Engineering, Nankai University, Tianjin 300350, ChinaCollege of Environmental Science and Engineering, Nankai University, Tianjin 300350, ChinaEcological Environment Monitoring and Scientific Research Center of Haihe River Basin and Beihai Sea Area, Ministry of Ecological Environment, Tianjin 300061, ChinaShenzhen Qianming Technology Co., Ltd., Shenzhen 518000, ChinaSynthego Corporation, Redwood City, CA 94063, USAAmmonium nitrogen (NH<sub>4</sub><sup>+</sup>-N), which naturally arises from the decomposition of organic substances through ammonification, has a tremendous influence on local water quality. Therefore, it is vital for water quality protection to assess the amount, sources, and streamflow transport of NH<sub>4</sub><sup>+</sup>-N. SPAtially Referenced Regressions on Watershed attributes (SPARROW), which is a hybrid empirical and mechanistic modeling technique based on a regression approach, can be used to conduct studies of different spatial scales on nutrient streamflow transport. In this paper, the load and delivery of NH<sub>4</sub><sup>+</sup>-N in Poyang Lake Basin (PLB) and Haihe River Basin (HRB) were estimated using SPARROW. In PLB, NH<sub>4</sub><sup>+</sup>-N load streamflow transport originating from point sources and farmland accounted for 41.83% and 32.84%, respectively. In HRB, NH<sub>4</sub><sup>+</sup>-N load streamflow transport originating from residential land and farmland accounted for 40.16% and 36.75%, respectively. Hence, the following measures should be taken: In PLB, it is important to enhance the management of the point sources, such as municipal and industrial wastewater. In HRB, feasible measures include controlling the domestic pollution and reducing the usage of chemical fertilizers. In addition, increasing the vegetation coverage of both basins may be beneficial to their nutrient management. The SPARROW models built for PLB and HRB can serve as references for future uses for different basins with various conditions, extending this model’s scope and adaptability.https://www.mdpi.com/2073-4441/14/2/209Poyang Lake BasinHaihe River BasinSPARROWammonium nitrogennutrient transport |
| spellingShingle | Jingchen Yin Haitao Chen Yuqiu Wang Lifeng Guo Guoguang Li Puzhou Wang Ammonium Nitrogen Streamflow Transport Modelling and Spatial Analysis in Two Chinese Basins Water Poyang Lake Basin Haihe River Basin SPARROW ammonium nitrogen nutrient transport |
| title | Ammonium Nitrogen Streamflow Transport Modelling and Spatial Analysis in Two Chinese Basins |
| title_full | Ammonium Nitrogen Streamflow Transport Modelling and Spatial Analysis in Two Chinese Basins |
| title_fullStr | Ammonium Nitrogen Streamflow Transport Modelling and Spatial Analysis in Two Chinese Basins |
| title_full_unstemmed | Ammonium Nitrogen Streamflow Transport Modelling and Spatial Analysis in Two Chinese Basins |
| title_short | Ammonium Nitrogen Streamflow Transport Modelling and Spatial Analysis in Two Chinese Basins |
| title_sort | ammonium nitrogen streamflow transport modelling and spatial analysis in two chinese basins |
| topic | Poyang Lake Basin Haihe River Basin SPARROW ammonium nitrogen nutrient transport |
| url | https://www.mdpi.com/2073-4441/14/2/209 |
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