Shifting of phytoplankton assemblages in a regulated Chinese river basin after streamflow and water quality changes
文献类型：期刊论文
| 作者 | Zhou, Yujian1,2; Zhang, Yongyong1; Liang, Tao2,3; Wang, Lingqing3 |
| 刊名 | SCIENCE OF THE TOTAL ENVIRONMENT
 |
| 出版日期 | 2019-03-01 |
| 卷号 | 654页码:948-959 |
| 关键词 | Phytoplankton community Flow regimes Physiochemical change Regulated river |
| ISSN号 | 0048-9697 |
| DOI | 10.1016/j.scitotenv.2018.10.348 |
| 通讯作者 | Zhang, Yongyong(zhangyy003@igsnrr.ac.cn) |
| 英文摘要 | Phytoplankton is critical to river ecosystems. These organisms are sensitive to streamflow and water quality changes and, therefore, used to determine stability of river ecosystems, especially in regulated rivers. However, exactly how such disturbances alter spatial distribution of phytoplankton remains unclear, particularly during different seasons. A thorough understanding of these mechanisms is required to better analyze impact of environmental factors on regulated rivers. Given this, phytoplankton communities, streamflow, and water quality factors were assessed in areas sampled four times from 2015 to 2016 in upper and middle Huai River Basin. Biodiversity indices, as well as duster and rank analyses, were used to (1) determine phytoplankton composition and distribution and (2) clarify impacts of key streamflow and water quality factors on such communities. It was found phytoplankton composition deteriorated over time, with phyla number decreasing from six to three. Moreover, proportion of Bucilluriophyta increased from 51.83% to 68.13%. Phytoplankton in three regions, upstream region (Shannon-Wiener index 1.39-2.95), midstream region (0.70-4.55), and downstream region (0.22 to 2.97), were spatially clustered. The most impact factors impacting variation in composition and distribution were water quality factors and then hydrological factors. Of these, the most important factors in wet seasons were total nitrogen and maximum runoff, while ammonia nitrogen and low flow discharge were the most important factors during dry seasons. Streamflow and water quality contributed the most in midstream region, which was significantly affected by numbers of high and low flow. Contributions of these factors to downstream region were the strongest during dry seasons, which were significantly affected by numbers of low flow. Collectively, these results reveal significant impact of streamflow and water quality factors on phytoplankton deterioration in upper and middle Huai River Basin. Critically, this study provides scientific and technological support for increased biomonitoring and ecohydrological studies in regulated river basins. (C) 2018 Elsevier B.V. All rights reserved. |
| WOS关键词 | NONPOINT-SOURCE POLLUTION ; MACROINVERTEBRATE COMMUNITIES ; ENVIRONMENTAL-FACTORS ; FUNCTIONAL-GROUPS ; PHOSPHORUS ; DYNAMICS ; IMPACTS ; TEMPERATURE ; NUTRIENT ; CLIMATE |
| 资助项目 | Program for Bingwei Excellent Talents in IGSNRR CAS[2015RC201] ; Natural Science Foundation of China[41671024] ; Natural Science Foundation of China[41271005] ; China Youth Innovation Promotion Association CAS[2014041] |
| WOS研究方向 | Environmental Sciences & Ecology |
| 语种 | 英语 |
| WOS记录号 | WOS:000458630100086 |
| 出版者 | ELSEVIER SCIENCE BV |
| 资助机构 | Program for Bingwei Excellent Talents in IGSNRR CAS ; Natural Science Foundation of China ; China Youth Innovation Promotion Association CAS |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/49363]  |
| 专题 | 中国科学院地理科学与资源研究所 |
| 通讯作者 | Zhang, Yongyong |
| 作者单位 | 1.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Key Lab Water Cycle & Related Land Surface Proc, Beijing 100101, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 3.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Key Lab Land Surface & Simulat, Beijing 100101, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zhou, Yujian,Zhang, Yongyong,Liang, Tao,et al. Shifting of phytoplankton assemblages in a regulated Chinese river basin after streamflow and water quality changes[J]. SCIENCE OF THE TOTAL ENVIRONMENT,2019,654:948-959. |
| APA | Zhou, Yujian,Zhang, Yongyong,Liang, Tao,&Wang, Lingqing.(2019).Shifting of phytoplankton assemblages in a regulated Chinese river basin after streamflow and water quality changes.SCIENCE OF THE TOTAL ENVIRONMENT,654,948-959. |
| MLA | Zhou, Yujian,et al."Shifting of phytoplankton assemblages in a regulated Chinese river basin after streamflow and water quality changes".SCIENCE OF THE TOTAL ENVIRONMENT 654(2019):948-959. |
入库方式： OAI收割
来源：地理科学与资源研究所
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