Determining Critical Thresholds of Environmental Flow Restoration Based on Planktonic Index of Biotic Integrity (P−IBI)
A Case Study in the Typical Tributaries of Poyang Lake
Bibliographic Data
| ID | 15459117 |
|---|---|
| Authors | Zhuowei Wang (0000-0001-6479-5154, China Institute of Water Resources and Hydropower Research), Wei Huang (0000-0002-5095-3972, China Institute of Water Resources and Hydropower Research, corresponding author), Dayu Zhu (0009-0003-5426-0772, China Institute of Water Resources and Hydropower Research), Qi Huang (0000-0002-4616-5308, Jiangxi Normal University), Leixiang Wu (China Institute of Water Resources and Hydropower Research), Xingchen Liu (0000-0002-8516-2759, China Institute of Water Resources and Hydropower Research) |
| Year | 2022 |
| Volume | 20 |
| Issue | 1 |
| Pages | 169-169 |
| Publication date | 2022-12-22 |
| Open Access | Yes |
| Type | ARTICLE |
| Venue | International Journal of Environmental Research and Public Health (JOURNAL) |
| Journal identifiers | ISSN: 1661-7827 • E-ISSN: 1660-4601 |
| Publisher | Multidisciplinary Digital Publishing Institute (PUBLISHER • CH) |
| DOI | 10.3390/ijerph20010169 |
| PMID | 36612489 |
| OpenAlex | W4313415170 |
| Language | EN |
| References cited | 64 |
Hydropower construction and climate change have aggravated river hydrological changes, which have reduced the water flow regime in the Ruhe River Basin. The reduced flow of the river seriously affected the water supply of nearby residents and the operation of the river ecosystem. Therefore, in order to alleviate the contradiction between water use for hydropower facilities and environmental water use, the urgent need is to explore the ecological flow-threshold of rivers. This study took the Fuhe River Basin as the research object, and summarized the monitoring data of eight hydrological stations from recent decades. Based on this, we explored the response law of P-IBI and flow, a tool to quickly measure the health of the ecosystem. Through the response relationship between alterations in environmental factors of the river and phytoplankton index of biotic integrity (P-IBI), it was determined that environmental flow was the dominant influencing factor of P-IBI. According to P-IBI, the threshold of environmental discharge in the Fuhe River was limited to 273~826.8 m 3 /s. This study established a regulatory framework for the river flow of large rivers by constructing P-IBI and determining the critical thresholds of environmental flow by constraining the constitution. These results provide a theoretical basis for better planning and improvement of river ecosystem restoration and river utilization
Drainage basin · Ecosystem · Geography · Hydrology (agriculture · Hydropower · Index of biological integrity · River ecosystem · Streamflow · Tributary · Water quality · Water resource management · Environmental Science · Fish Ecology and Management Studies · Freshwater macroinvertebrate diversity and ecology · Hydrology and Watershed Management Studies · Ecology · Geology
| Highly cited | No |
|---|