Nitrogen and phosphorus losses via surface runoff from tea plantations in the mountainous areas of Southwest China.
Nowadays, there has been a rapid expansion of tea plantations in the mountainous areas of southwest China. However, little research has focused on the pollution problems caused by the losses of nitrogen and phosphorus from tea plantations in this area. Therefore, a field experiment was conducted usi...
| Main Authors: | , , , , , , |
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| Format: | Article |
| Language: | English |
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Public Library of Science (PLoS)
2023-01-01
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| Series: | PLoS ONE |
| Online Access: | https://doi.org/10.1371/journal.pone.0285112 |
| _version_ | 1797394451821232128 |
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| author | Xingcheng Huang Darong Zhen Xiaona Lu Yarong Zhang Yanling Liu Yu Li Taiming Jiang |
| author_facet | Xingcheng Huang Darong Zhen Xiaona Lu Yarong Zhang Yanling Liu Yu Li Taiming Jiang |
| author_sort | Xingcheng Huang |
| collection | DOAJ |
| description | Nowadays, there has been a rapid expansion of tea plantations in the mountainous areas of southwest China. However, little research has focused on the pollution problems caused by the losses of nitrogen and phosphorus from tea plantations in this area. Therefore, a field experiment was conducted using the runoff plots in situ monitoring method following farmers' conventional management from 2018 to 2020 in Guizhou Province, southwest China. The characteristics of nitrogen and phosphorus losses from tea plantation in the mountainous area were clarified, and the effect of rainfall intensity on the nitrogen and phosphorus losses were explored. 298 natural rainfall events with a total rainfall of 2258 mm were observed during the 2-year observation period, and erosive rainfall accounted for 78.1% of the total rainfall. The total surface runoff amount was 72 mm, and the surface runoff coefficient was 3.19%. The total nitrogen (TN) and total phosphorus (TP) concentrations in the surface runoff ranged from 0.68 to 14.86 mg·L-1 and 0.18 to 2.34 mg·L-1, respectively. The TN and TP losses from tea plantations were 1.47 kg N ha-1 yr-1 and 0.210 kg P ha-1 yr-1. Rainfall intensity directly and significantly affected the surface runoff and nitrogen and phosphorus loss. Where 72.6% of the cumulative rainfall, 92.5% of the total surface runoff amounts, 87.4% of total nitrogen loss, and 90.5% of total phosphorus loss were observed in rainfall events above 10 mm. Taken together, the results provide scientific guidance for quantifying the characteristics of nutrient loss in subtropical mountain tea plantations. |
| first_indexed | 2024-03-09T00:18:58Z |
| format | Article |
| id | doaj.art-0249ddc6f37540a380f52de74f3a9a43 |
| institution | Directory Open Access Journal |
| issn | 1932-6203 |
| language | English |
| last_indexed | 2024-03-09T00:18:58Z |
| publishDate | 2023-01-01 |
| publisher | Public Library of Science (PLoS) |
| record_format | Article |
| series | PLoS ONE |
| spelling | doaj.art-0249ddc6f37540a380f52de74f3a9a432023-12-12T05:36:01ZengPublic Library of Science (PLoS)PLoS ONE1932-62032023-01-01186e028511210.1371/journal.pone.0285112Nitrogen and phosphorus losses via surface runoff from tea plantations in the mountainous areas of Southwest China.Xingcheng HuangDarong ZhenXiaona LuYarong ZhangYanling LiuYu LiTaiming JiangNowadays, there has been a rapid expansion of tea plantations in the mountainous areas of southwest China. However, little research has focused on the pollution problems caused by the losses of nitrogen and phosphorus from tea plantations in this area. Therefore, a field experiment was conducted using the runoff plots in situ monitoring method following farmers' conventional management from 2018 to 2020 in Guizhou Province, southwest China. The characteristics of nitrogen and phosphorus losses from tea plantation in the mountainous area were clarified, and the effect of rainfall intensity on the nitrogen and phosphorus losses were explored. 298 natural rainfall events with a total rainfall of 2258 mm were observed during the 2-year observation period, and erosive rainfall accounted for 78.1% of the total rainfall. The total surface runoff amount was 72 mm, and the surface runoff coefficient was 3.19%. The total nitrogen (TN) and total phosphorus (TP) concentrations in the surface runoff ranged from 0.68 to 14.86 mg·L-1 and 0.18 to 2.34 mg·L-1, respectively. The TN and TP losses from tea plantations were 1.47 kg N ha-1 yr-1 and 0.210 kg P ha-1 yr-1. Rainfall intensity directly and significantly affected the surface runoff and nitrogen and phosphorus loss. Where 72.6% of the cumulative rainfall, 92.5% of the total surface runoff amounts, 87.4% of total nitrogen loss, and 90.5% of total phosphorus loss were observed in rainfall events above 10 mm. Taken together, the results provide scientific guidance for quantifying the characteristics of nutrient loss in subtropical mountain tea plantations.https://doi.org/10.1371/journal.pone.0285112 |
| spellingShingle | Xingcheng Huang Darong Zhen Xiaona Lu Yarong Zhang Yanling Liu Yu Li Taiming Jiang Nitrogen and phosphorus losses via surface runoff from tea plantations in the mountainous areas of Southwest China. PLoS ONE |
| title | Nitrogen and phosphorus losses via surface runoff from tea plantations in the mountainous areas of Southwest China. |
| title_full | Nitrogen and phosphorus losses via surface runoff from tea plantations in the mountainous areas of Southwest China. |
| title_fullStr | Nitrogen and phosphorus losses via surface runoff from tea plantations in the mountainous areas of Southwest China. |
| title_full_unstemmed | Nitrogen and phosphorus losses via surface runoff from tea plantations in the mountainous areas of Southwest China. |
| title_short | Nitrogen and phosphorus losses via surface runoff from tea plantations in the mountainous areas of Southwest China. |
| title_sort | nitrogen and phosphorus losses via surface runoff from tea plantations in the mountainous areas of southwest china |
| url | https://doi.org/10.1371/journal.pone.0285112 |
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