The impact of climate change on the water quality of Baiyangdian Lake (China) in the past 30 years (1991-2020)
文献类型：期刊论文
| 作者 | Han, Yuli; Bu, Hongmei2 |
| 刊名 | SCIENCE OF THE TOTAL ENVIRONMENT
 |
| 出版日期 | 2023-04-20 |
| 卷号 | 870 |
| ISSN号 | 1879-1026 |
| 关键词 | Climate change Water quality Correlation analysis Regression analysis Baiyangdian Lake |
| DOI | 10.1016/j.scitotenv.2023.161957 |
| 文献子类 | Article |
| 英文摘要 | Climate change significantly influenced the water quality of lakes in recent decades. This study investigated the effects of climate change on the water quality of Baiyangdian Lake (China) in the past 30 years (1991-2020) using correlation analysis, regression analysis, and the generalized additive model (GAM). The results show that water quality grade, chemical oxygen demand (COD), total phosphorus (TP) concentrations, and annual average and minimum air temperatures of the lake showed significant differences (p < 0.05) in the one-way ANOVA during the studied period. The concentration of dissolved oxygen (DO) and TP, annual average and minimum air temperatures, and annual precipitation decreased, while the COD and total nitrogen (TN) concentration, annual maximum temperature, and monthly maximum precipitation increased. The annual average and minimum air temperature affected all water quality variables and explained 12.3 %-54.5 % of variation deviation in correlation and GAM analyses, indicating that the changes of air temperature influenced the water temperature, which then affected the biochemical reaction rates leading to changes in water quality. The precipitation factors explained 10.5 % (TN) to 54.8 % (TP) of variation deviation, implying that the increase in precipitation improved water quality by diluting the COD concentration. However, excessive precipitation also accelerated the endogenous release of phosphorus in sediments by increasing the TP concentration. Additionally, extreme climate factors correlated with some water quality variables and explained 57.7 %-95.9 % of the total variances in correlation and regression analyses, suggesting that the extreme temperatures changed the nitrogen and DO concentration to aggravate lake pollution. However, the extreme precipitation purified the water through dilution. This study will facilitate to understand the impacts of climate change on water quality and find appropriate adaptation measures for ecosystem management of shallow lakes. |
| WOS关键词 | NITROGEN ; PHYTOPLANKTON ; TEMPERATURE ; NUTRIENTS ; ECOSYSTEM ; GROWTH |
| WOS研究方向 | Environmental Sciences & Ecology |
| 出版者 | ELSEVIER |
| WOS记录号 | WOS:000933088900001 |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/190314]  |
| 专题 | 陆地水循环及地表过程院重点实验室_外文论文 |
| 作者单位 | 1.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Datun Rd A 11, Beijing 100101, Peoples R China 2.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Key Lab Water Cycle & Related Land Surface Proc, Beijing 100101, Peoples R China; Univ Chinese Acad Sci, Coll Resources & Environm, Beijing 100049, Peoples R China |
| 推荐引用方式 GB/T 7714 | Han, Yuli,Bu, Hongmei. The impact of climate change on the water quality of Baiyangdian Lake (China) in the past 30 years (1991-2020)[J]. SCIENCE OF THE TOTAL ENVIRONMENT,2023,870. |
| APA | Han, Yuli,&Bu, Hongmei.(2023).The impact of climate change on the water quality of Baiyangdian Lake (China) in the past 30 years (1991-2020).SCIENCE OF THE TOTAL ENVIRONMENT,870. |
| MLA | Han, Yuli,et al."The impact of climate change on the water quality of Baiyangdian Lake (China) in the past 30 years (1991-2020)".SCIENCE OF THE TOTAL ENVIRONMENT 870(2023). |
入库方式： OAI收割
来源：地理科学与资源研究所
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