Attributing the spatial-temporal contributions of inflow nitrogen and phosphorus loads to lake water quality and insights for effective mitigation strategies
文献类型：期刊论文
| 作者 | Zhao, Zhilong3,4; Yao B(姚波)2; Li, Yu3; Ni, Zhaokui3; Wang, Shengrui1,3,4 |
| 刊名 | JOURNAL OF HYDROLOGY-REGIONAL STUDIES
 |
| 出版日期 | 2025-08-01 |
| 卷号 | 60页码:16 |
| 关键词 | Water quality Spatial-temporal contribution Load reduction Hydrodynamic model Erhai Lake |
| DOI | 10.1016/j.ejrh.2025.102584 |
| 通讯作者 | Wang, Shengrui(wangsr@bnu.edu.cn) |
| 英文摘要 | Study region: Erhai Lake, a typical plateau lake in China. Study focus: Inflow nitrogen and phosphorus loads (INPL) impair lake water quality, while an indepth understanding of their contributions to lake water quality represents a major obstacle to formulating effective INPL mitigation strategies. This study leveraged a three-dimensional hydrodynamic model to examine the spatial-temporal influence of INPL on the water quality of Erhai Lake and to determine reduction priorities. New hydrological insights for the region: The INPL contributions showed strong spatial-temporal heterogeneity, with spatial contributions primarily from the Xiaguan Area (24.06 %-35.47 %), Miju Area (16.90 %-22.96 %), and Yinqiao-Wanqiao Area (11.16 %-20.28 %) and temporal contributions primarily from June to September (68.25 %-75.59 % of the total). Key factors affecting INPL contributions were inflow volume, built-up land area, cropland area, slope, precipitation and air temperature. A 70 % reduction in INPL reduced total nitrogen, total phosphorus, and chlorophyll a by 14.56-42.39 %, indicating that merely reducing INPL was insufficient to achieve immediate improvements in water quality. The effect of reducing inflow total phosphorus load (IPL) on chlorophyll a was 1.82 times greater than that of reducing inflow total nitrogen load (INL), suggesting that IPL reduction is more effective in controlling algal blooms. To achieve mild and moderate algal bloom targets, IPL should be reduced by 48.69 % (38.37 tons) and 38.91 % (30.67 tons). The Xiaguan Area and June were the most critical for IPL reduction. |
| 分类号 | 二类/Q1 |
| WOS关键词 | RIVER ; TOPOGRAPHY ; PLATEAU ; BAY |
| 资助项目 | Science and Technology Plan Project of Yunnan Provincial Department of Science and Technology[202202AE090034] ; Shandong Province Key Research and Development Program[2021CXGC011202] ; Science and Technology Program of Guangdong[2024B1212040001] |
| WOS研究方向 | Water Resources |
| 语种 | 英语 |
| WOS记录号 | WOS:001537494100001 |
| 资助机构 | Science and Technology Plan Project of Yunnan Provincial Department of Science and Technology ; Shandong Province Key Research and Development Program ; Science and Technology Program of Guangdong |
| 其他责任者 | Wang, Shengrui |
| 源URL | [http://dspace.imech.ac.cn/handle/311007/102355]  |
| 专题 | 力学研究所_流固耦合系统力学重点实验室(2012-) |
| 作者单位 | 1.Yunnan Agr Univ, Coll Resources & Environm, Kunming 650201, Peoples R China 2.Chinese Acad Sci, Key Lab Mech Fluid Solid Coupling Syst, Inst Mech, Beijing 100190, Peoples R China; 3.Beijing Normal Univ, Adv Inst Nat Sci, Ctr Water Res, Guangdong Hong Kong Joint Lab Water Secur, Zhuhai 519087, Peoples R China; 4.Beijing Normal Univ, Coll Water Sci, Beijing 100875, Peoples R China; |
| 推荐引用方式 GB/T 7714 | Zhao, Zhilong,Yao B,Li, Yu,et al. Attributing the spatial-temporal contributions of inflow nitrogen and phosphorus loads to lake water quality and insights for effective mitigation strategies[J]. JOURNAL OF HYDROLOGY-REGIONAL STUDIES,2025,60:16. |
| APA | Zhao, Zhilong,姚波,Li, Yu,Ni, Zhaokui,&Wang, Shengrui.(2025).Attributing the spatial-temporal contributions of inflow nitrogen and phosphorus loads to lake water quality and insights for effective mitigation strategies.JOURNAL OF HYDROLOGY-REGIONAL STUDIES,60,16. |
| MLA | Zhao, Zhilong,et al."Attributing the spatial-temporal contributions of inflow nitrogen and phosphorus loads to lake water quality and insights for effective mitigation strategies".JOURNAL OF HYDROLOGY-REGIONAL STUDIES 60(2025):16. |
入库方式： OAI收割
来源：力学研究所
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