کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
6348184 | 1621659 | 2014 | 11 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Development of a new index to assess river regime impacts after dam construction
ترجمه فارسی عنوان
توسعه یک شاخص جدید برای ارزیابی اثرات رژیم رودخانه پس از ساخت سد
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کلمات کلیدی
ارزیابی اثرات، آبی و سدها، مقررات رودخانه، رژیم رودخانه، شاخص تغییرات هیدرولوژیکی،
موضوعات مرتبط
مهندسی و علوم پایه
علوم زمین و سیارات
فرآیندهای سطح زمین
چکیده انگلیسی
Construction of dams affects river flow regimes and changes downstream ecosystems in many ways. The impacts of dams depend on local climate, dam purpose and operation policy. This study analysed the impacts of dam construction on river flow regimes and developed a new method to evaluate the effects on river flow. By using three main flow characteristics of river regime (magnitude, timing and intra-annual alteration), a new combined river impact (RI) index to assess construction impacts based on monthly flow data was developed. A preliminary evaluation of the method was made using the river Ebro as a case. A classification was developed where the impact was assessed using a scale from low to drastic. The method was further tested to quantify the effect of dams in 15 rivers located in different regions. The method showed good potential to classify different dam types of variable sizes constructed for different purposes. The RI index method also proved suitable for assessing the environmental impacts of dam construction and could be extended by adding other characteristics of flow regime to evaluate the effects of climate change or changes in land use on river flow regimes.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Global and Planetary Change - Volume 122, November 2014, Pages 186-196
Journal: Global and Planetary Change - Volume 122, November 2014, Pages 186-196
نویسندگان
Ali Torabi Haghighi, Hannu Marttila, Bjørn Kløve,