سهل فيضي
سهل فيضي إنگليزية: Floodplain هو ذلك الجزء من الوادي الذي يغمر بالمياه خلال فيضان النهر. ويعتبر هذا المظهر نتاج العمل البنائي والهدمي للأنهار في نفس الوقت, ويتغلب العمل البنائي على الهدمي في هذه المناطق نتيجة ترسيب الرواسب فيها.
ومن السهول الفيضية الكبيرة في الوطن العربي سهل وادي الرافدين الذي تشكل نتيجة جريان نهري دجلة والفرات.
![]() View of the flood plain following a 1 in 10 year flood on the Isle of Wight ![]() Gravel floodplain of a glacial river near the Snow Mountains in ألاسكا, 1902 ![]() Entrenched river: The Virgin River at the upper end of Zion Canyon, Zion National Park, Utah, has almost no floodplain at all. ![]() Aggradation and plantation: نهر لارامي meanders across its floodplain in Albany County, Wyoming, 1949. ![]() Aggradational floodplain: This floodplain of a small meandering stream in La Plata County, Colorado, is underlain by silt deposited above a dam formed by a terminal moraine left by the Wisconsin Glacier. Riparian vegetation on the floodplain of the Lynches River close to Johnsonville, South Carolina. These tupelo and cypress trees show the high water mark of flooding. |
انظر أيضاً
- Flood-meadow, area of grassland or pasture beside a river, subject to seasonal flooding.
- Water-meadow, area of grassland or pasture beside a river, subject to controlled seasonal flooding.
- Crevasse splay, sedimentary deposit formed when an overloaded stream breaks its levee.
- List of alluvial sites in Switzerland
- Red River Floodway as a good example of a floodway.
- Floodplain restoration
- Flood opening, a technique for mitigating the effects of flooding on structures, mandated in some regions.
الهامش
ببليوجرافيا
- Powell, W. Gabe. 2009. Identifying Land Use/Land Cover (LULC) Using National Agriculture Imagery Program (NAIP) Data as a Hydrologic Model Input for Local Flood Plain Management. Applied Research Project, Texas State University. http://ecommons.txstate.edu/arp/296/
وصلات خارجية
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