| مشخصات مقاله پاورپوینت انگلیسی | |
| عنوان فارسی مقاله | استفاده و تغییر از پوشش زمین مسائل مربوط به سد |
| عنوان انگلیسی مقاله | Land-use and Land-cover Change Issues Related to Dams |
| فرمت مقاله | پاورپوینت (PPT یا PPTX) |
| تعداد اسلایدها | 17 اسلاید |
| قابلیت ویرایش | دارد |
| قابلیت پرینت | دارد |
| رشته های مرتبط با این مقاله | مهندسی عمران |
| گرایش های مرتبط با این مقاله | مدیریت ساخت |
| کد محصول | EP679 |
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| تصویری از مقاله |
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| فهرست مطالب |
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Land-use and Land-cover Change Issues Related to Dams |
| بخشی از مقاله |
| What Happens to Land when a Dam Is Built? People who live in area that will be covered by the reservoir must move – resettlement. Owners in good land-tenure countries are compensated and move elsewhere, usually to nearby cities. Inhabitants in rural areas or informal settlements in most countries are either evicted or resettled. Resettlement programs have been conducted for decades, some successfully Future dams will probably spur more rural-urban migration, already underway for several generations Land cover in reservoir area cleared (seldom) Construction sites and housing built for workers and support populations When reservoir is filled, people are attracted to water Transportation Agriculture – irrigation, access to markets (large corporations)] Subsistence – Haiti – upstream settlement -> deforestation -> reservoir sedimentation Recreation – infrastructure and access Full reservoir inundates former floodplains and riparian areas Inundates fertile bottomland soils Removes riparian corridor for organism movement, sediment/biogeochemical function Formerly terrestrial land is inundated, either permanently or intermittently Afforestation – some nations have programs in upstream parts of the basin to reduce erosion Downstream: flow moderated, people plant or build in previous floodplains Fertile soils in former floodplain Subject to catastrophic flooding – dam failure happens! Flow moderated, earlier livelihood methods based on flooding can be lost (Egypt, Cambodia) Drought mitigation (Egypt, Thailand) Flood mitigation (Vietnam Mekong Delta) MORE |
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