Next Article in Journal
Correction of Precipitation Records through Inverse Modeling in Watersheds of South-Central Chile
Previous Article in Journal
Comparison of the Roles of Optimizing Root Distribution and the Water Uptake Function in Simulating Water and Heat Fluxes within a Maize Agroecosystem
Article Menu
Issue 8 (August) cover image

Export Article

Open AccessArticle
Water 2018, 10(8), 1091; https://doi.org/10.3390/w10081091

Characteristics and Practices of Ecological Flow in Rivers with Flow Reductions Due to Water Storage and Hydropower Projects in China

1,2,3
,
1,3,* , 4
and
1,5
1
Department of Hydrology and Water Resources, Hohai University, Nanjing 210098, China
2
Nanjing Hohai Technology Company, Nanjing 210098, China
3
National Engineering Research Center of Water Resources Efficient Utilization and Engineering Safety, Nanjing 210098, China
4
State Key Laboratory of Hydrology-Water Resources and Hydraulic Engineering, Nanjing Hydraulic Research Institute, Nanjing 210029, China
5
Appraisal Center for Environment & Engineering, Ministry of Environmental Protection, Beijing 100012, China
*
Author to whom correspondence should be addressed.
Received: 24 May 2018 / Revised: 3 August 2018 / Accepted: 11 August 2018 / Published: 17 August 2018
(This article belongs to the Section Water Quality and Ecosystems)
Full-Text   |   PDF [1753 KB, uploaded 17 August 2018]   |  

Abstract

Water and flow reductions in the channels downstream of water storage and hydropower projects have significant impacts on aquatic ecosystems. Understanding and analyzing the ecosystem status is of great significance to facilitate the protection of riverine ecosystems. A database was established based on the 2000–2017 environmental impact assessment (EIA) reports on water storage and hydropower projects in China, and corresponding analysis software was built based on an ArcGIS spatial analysis platform. The projects in China are mainly found in the Yangtze and Pearl River basins and in south-western China. The hydropower projects have a larger influence than the water storage projects on the flow of downstream rivers sections, and most of the hydropower projects, especially the water diversion projects, cause flow reductions in the downstream rivers. An ecological flow management mechanism in China implemented in 2006 provided a promising method to alleviate river flow reductions. However, there is still only one kind of ecological flow calculation method and few ecological flow regulation measures in use. Based on the advantages and problems of the existing ecological flow management system, this paper proposes a management scheme based on a regional-engineering calculation method. The results can facilitate decision making in ecological flow management. View Full-Text
Keywords: ecological flow; flow reductions; water storage and hydropower projects; management ecological flow; flow reductions; water storage and hydropower projects; management
Figures

Figure 1

This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).
SciFeed

Share & Cite This Article

MDPI and ACS Style

Ma, L.; Zhang, X.; Wang, H.; Qi, C. Characteristics and Practices of Ecological Flow in Rivers with Flow Reductions Due to Water Storage and Hydropower Projects in China. Water 2018, 10, 1091.

Show more citation formats Show less citations formats

Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Related Articles

Article Metrics

Article Access Statistics

1

Comments

[Return to top]
Water EISSN 2073-4441 Published by MDPI AG, Basel, Switzerland RSS E-Mail Table of Contents Alert
Back to Top