پیوندهای مفید
اخبار و اعلانات
آمار
| تعداد نشریات | 161 |
| تعداد شماره‌ها | 6,532 |
| تعداد مقالات | 70,501 |
| تعداد مشاهده مقاله | 124,104,480 |
| تعداد دریافت فایل اصل مقاله | 97,210,364 |
بررسی اثرات برداشت مصالح ( شن و ماسه ) بر شکل بستر شکل ورژیم رودخانه میناب | ||
| پژوهش های جغرافیایی (منتشر نمیشود) | ||
| مقاله 7، دوره 35، شماره 2 - شماره پیاپی 472، تیر 1382 اصل مقاله (501.51 K) | ||
| نویسندگان | ||
| دکتر احمد نوحه گر؛ دکتر فرج اله محمودی* | ||
| کلیدواژه‌ها | ||
| ئوموفولوژی؛ دانه بندی؛ دبی؛ رژیم جریان؛ رسوب؛ سازه؛ شن و ماسه؛ فرسایش؛ کناره؛ مثاندر | ||
| عنوان مقاله [English] | ||
| - | ||
| چکیده [English] | ||
| Exploitation of river sand and gravel is a source of mane natural organizational financial and environmental problems. Recent years have seen mane efforts to improve the river material exploitation system .as Minab river is one of the richest sources of sand and gravel in Iran numerous factories have been established on is bed to exploit its material. Minab dam has caused total hinderance of base debit downstream flow and consequently downstream transmission of sediments especially coarse grains and erosion of this alluvial system bed and sides it has also led to river course change riverbed and side erosion meander expansion increasing riverbed widening endangering river constructions e.g. Minab bridge Minab dam and dikes and threatening population centers farma and gardens adjacent to the river arelated problem is alluvial material exploitation in recent years so many measures have been taken to improve this exploitation system it should be remembered however that within the current system technical issues water and sediment direction and its contribution to the river geomorphology as well as considering natural effects and condeguences of the river material exploitation are among the long-range objectives in relation to those alluvial system. | ||
| کلیدواژه‌ها [English] | ||
| Discharge Regim, erosion, geomorphology, meander, Minab, Minab River, Sand and Peble | ||
|
آمار تعداد مشاهده مقاله: 1,613 تعداد دریافت فایل اصل مقاله: 1,127 |
||