Climate Change Data Portal
| DOI | 10.1016/j.limno.2024.126155 |
| Abrupt diatom assemblage shifts in Lake Baiyangdian driven by distinct hydrological changes and yet more so by gradual eutrophication | |
| 发表日期 | 2024 |
| ISSN | 0075-9511 |
| EISSN | 1873-5851 |
| 起始页码 | 105 |
| 卷号 | 105 |
| 英文摘要 | Lake Baiyangdian, the largest natural freshwater wetland on the North China Plain, has faced multiple stressors from anthropogenic disturbances and climate change, affecting its aquatic ecosystem over the past century. An improved understanding of the relationship between environmental stresses and ecosystem responses and the mechanisms underlying ecological shifts has significant implications for managing the aquatic ecosystem in Lake Baiyangdian. In this paper, we reconstructed the ecological changes in Lake Baiyangdian over the past 70 years based on diatom assemblages in a sediment core and identified ecological shifts by the Sequential t test Analysis of Regime-shifts algorithm (STARS) and a sequential F test. Our results revealed two ecological shifts. The first ecological shift in the diatom community occurred in approximately 1963, which was associated with the rather abrupt changes, i.e., damming in the basin. This hydrological modification prolongs hydraulic residence time and accelerates nutrient retention, consequently leading to an increase in eutrophic species. Subsequently, the second ecological shift occurred in the 1990 s, which was attributed to sustained nutrient loading due to human activity intensification as well as an increase in the regional temperature. Ongoing nutrient loading finally pushed the lake toward a driver threshold, leading to an abrupt shift in the diatom assemblage. Our study details the complex trajectories of aquatic ecosystem shifts driven by hydrological alteration, increasing nutrient loading, and climate change in Lake Baiyangdian and highlights the processes by which ecological shifts occur in response to both abrupt and gradual stressors. |
| 英文关键词 | Ecological shift; Diatoms; Hydrological alteration; Human activity; Climate change; Lake Baiyangdian |
| 语种 | 英语 |
| WOS研究方向 | Marine & Freshwater Biology |
| WOS类目 | Limnology |
| WOS记录号 | WOS:001194475600001 |
| 来源期刊 | LIMNOLOGICA
 |
| 文献类型 | 期刊论文 |
| 条目标识符 | http://gcip.llas.ac.cn/handle/2XKMVOVA/286748 |
| 作者单位 | China Geological Survey; Institute of Hydrogeology & Environmental Geology, Chinese Academy of Geological Sciences; Chinese Academy of Geological Sciences; China Geological Survey; Hebei Normal University; Hebei Normal University |
| 推荐引用方式 GB/T 7714 | . Abrupt diatom assemblage shifts in Lake Baiyangdian driven by distinct hydrological changes and yet more so by gradual eutrophication[J],2024,105. |
| APA | (2024).Abrupt diatom assemblage shifts in Lake Baiyangdian driven by distinct hydrological changes and yet more so by gradual eutrophication.LIMNOLOGICA,105. |
| MLA | "Abrupt diatom assemblage shifts in Lake Baiyangdian driven by distinct hydrological changes and yet more so by gradual eutrophication".LIMNOLOGICA 105(2024). |
| 条目包含的文件 | 条目无相关文件。 | |||||
| 个性服务 |
| 推荐该条目 |
| 保存到收藏夹 |
| 导出为Endnote文件 |
| 谷歌学术 |
| 谷歌学术中相似的文章 |
| 百度学术 |
| 百度学术中相似的文章 |
| 必应学术 |
| 必应学术中相似的文章 |
| 相关权益政策 |
| 暂无数据 |
| 收藏/分享 |
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。
