کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
313176 534377 2008 10 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Impact of hydroelectric projects on river environment: Analysis of water quality changes in Ningxia Reach of Yellow River
موضوعات مرتبط
مهندسی و علوم پایه سایر رشته های مهندسی مهندسی عمران و سازه
پیش نمایش صفحه اول مقاله
Impact of hydroelectric projects on river environment: Analysis of water quality changes in Ningxia Reach of Yellow River
چکیده انگلیسی

In this paper, the relationship between hydroelectric projects and the river environment is analyzed. Recently, the large-scale regulation of runoff by large hydroelectric projects in the Ningxia Reach of the Yellow River has altered natural runoff processes, causing an increase in the probability of low discharge and an overall adjustment of riverbed evolution and river characteristics. During low-flow years, the combined effects of these two changes can weaken the self-purification capacity and reduce the water environmental capacity of the river. This is one of the main reasons for the recent decrease of water quality in the Ningxia Reach. This research shows that it is necessary to implement river training projects to maintain stable flow paths, not only for adjusting river regimes and for flood control, but also for increasing the self-purification capacity and the water environmental capacity of the river. Methods and proposals for coordinating the operation of hydroelectric projects with the protection of the river environment are presented in the interest of promoting sustainable development.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Water Science and Engineering - Volume 1, Issue 2, June 2008, Pages 66-75