File:Botswana wetlands ESA372738.jpg
Original file (4,868 × 4,103 pixels, file size: 10.53 MB, MIME type: image/jpeg)
Captions
Captions
Summary[edit]
| Description |
Afrikaans: Rivierdeltas mond meestal in die see uit, maar die delta wat deur die Okawangorivier gevorm word, is anders. Nadat die rivier in Angola verrys en deur Namibië gevloei het, kronkel dit deur Botswana waar dit vertak om 'n binnelandse delta te vorm wat boonop een van die wêreld se belangrikste vleilande onderhou.
Vleilande, hetsy aan kuslyne of binnelands, is belangrik vir mense en die omgewing. Onder hul uiteenlopende voordele tel hul natuurlike beskerming teen rampe en die beskerming van gemeenskappe wat mees kwesbaar vir die verwoestende gevolge van vloede, droogtes en stormvloede is. Vleilande verskaf ook habitat aan 'n menigte diere en plante, en filtreer en stoor water. 2 Februarie word jaarliks as Wêreldvleilanddag gehuldig. Dit herdenk die Konvensie oor Vleilande, ook bekend as die Ramsarkonvensie, wat op 2 Februarie 1971 onderteken is om 'n raamwerk vir nasionale en internasionale samewerking vir die bewaring en benutting van vleilande en hul hulpbronne te verskaf. Vanjaar (2017) se tema is 'Vleilande vir ramprisikovermindering'. Goed bestuurde vleilande bied veerkragtigheid vir gemeenskappe teen uiterste weer en help om die skade van hierdie gevare te bemiddel. Kusvleilande soos mangliedmoerasse beskerm teen oorstromings en dien as buffers teen soutwater-indringing en erosie. Binnelandse vleilande soos vloedvlaktes, mere, veenlande en deltas soos die Okavango kan droogterisikos verminder. Die Okawangodelta, 'n Wêrelderfenisgebied, sluit permanente moerasse in wat ongeveer 15 000 vk km tydens die droëseisoen beslaan, maar dan tot ongeveer drie keer so wyd kan uitdy. Dit bied 'n tuiste vir sommige van die wêreld se mees bedreigde groot soogdierspesies, en staan in skerp kontras met die omliggende Kalahariwoestyn, om 'n reddingsboei vir plaaslike gemeenskappe en wild te vorm. Daarom is dit uiters belangrik dat dit goeie bestuur geniet. Deur die GlobWetland Africa-projek help ESA en die Afrika-span van die Ramsarkonvensie om satellietwaarnemings te benut vir die bewaring, wyse gebruik en doeltreffende bestuur van vleilande in Afrika. Deur die projek word belanghebbendes in Afrika van metodes en hulpmiddels voorsien om hul verpligtinge teenoor Ramsar na te kom. Die Copernicus Sentinel-2A-satelliet het hierdie beeld van die Okavangodelta op 2 Desember 2016 geneem. Dit is in vals kleur verwerk om variasies in die waterbedekking en verskille in plantegroei uit te lig. English: A river delta usually leads to the open sea, but the delta formed by the Okavango River is different. After rising in Angola and flowing through Namibia, the river meanders into Botswana, where it branches out to create an inland delta – one of the world’s most important wetlands.
Wetlands, both coastal and inland, are important for people and the environment. Their many benefits include acting as natural safeguards against disasters, protecting communities most vulnerable to the devastating effects of floods, droughts and storm surges. They also provide a habitat for a multitude of animals and plants, and filter and store water. Every year, 2 February marks World Wetlands Day. It commemorates theConvention on Wetlandsalso known as the Ramsar Convention, which was signed on 2 February 1971 to provide a framework for national and international cooperation for the conservation and use of wetlands and their resources. This year’s theme is ‘Wetlands for Disaster Risk Reduction’. Well-managed wetlands provide resilience for communities against extreme weather and help to minimise the damage from these hazards. Coastal wetlands such as mangroves protect against flooding and serve as buffers against saltwater intrusion and erosion. Inland wetlands such as floodplains, lakes and peatlands and deltas like Okavango can reduce the risk of drought. The Okavango Delta, a World Heritage site, includes permanent swamps that cover about 15 000 sq km during the dry season but can swell to around three times this size, providing a home for some of the world’s most endangered species of large mammals. In sharp contrast, the surrounding Kalahari Desert is a lifeline for local communities and wildlife alike – and therefore it is extremely important that it is well managed. Through the GlobWetland Africa project, ESA and the African team of the Ramsar convention help to use satellite observations for the conservation, wise-use and effective management of wetlands in Africa. Through the project, African stakeholders are provided with methods and tools to fulfil their commitments to Ramsar. The Copernicus Sentinel-2A satellite captured this image of the Okavango Delta on 2 December 2016. It has been processed in false colour to highlight variations in the water cover and differences in vegetation. |
| Date | |
| Source | http://www.esa.int/spaceinimages/Images/2017/02/Botswana_wetlands |
| Author | European Space Agency |
| Permission (Reusing this file) |
contains modified Copernicus Sentinel data (2016), processed by ESA,CC BY-SA 3.0 IGO |
| Title | Botswana wetlands |
| System | Copernicus |
| Mission | Sentinel-2 |
| Activity | Observing the Earth |
Licensing[edit]
- You are free:
- to share – to copy, distribute and transmit the work
- to remix – to adapt the work
- Under the following conditions:
- attribution – You must give appropriate credit, provide a link to the license, and indicate if changes were made. You may do so in any reasonable manner, but not in any way that suggests the licensor endorses you or your use.
- share alike – If you remix, transform, or build upon the material, you must distribute your contributions under the same or compatible license as the original.
File history
Click on a date/time to view the file as it appeared at that time.
| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 15:23, 6 May 2017 | | 4,868 × 4,103 (10.53 MB) | Fæ (talk | contribs) | == {{int:filedesc}} == {{information | description = {{en|1=A river delta usually leads to the open sea, but the delta formed by the Okavango River is different. After rising in Angola and flowing through Namibia, the river meanders into Botswana, wher... |
You cannot overwrite this file.
File usage on Commons
There are no pages that use this file.
File usage on other wikis
The following other wikis use this file:
- Usage on de.wikipedia.org
