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Tag: Grazing

Historical Forest Carbon Balance 1855-1995
Through processes of respiration and through the decay of organic matter or burning of biomass, forests release carbon. A carbon ‘sink’ is formed in the forest when the uptake of carbon is higher than the release. The co...
01 Oct 2009 - by Philippe Rekacewicz assisted by Cecile Marin, Agnes Stienne, Guilio Frigieri, Riccardo Pravettoni, Laura Margueritte and Marion Lecoquierre.
Regulation of the Tigris and Euphrates rivers
Water has long been associated with conflicts between neighbouring countries. This graphic shows how water from the Tigris and Euphrates rivers is used in Iraq, and that neighbouring Syria and Turkey influence the flow o...
17 May 2005 - by Philippe Rekacewicz, UNEP/GRID-Arendal
Land cover changes in desert areas 1700,1900,2000 and 2050
The main land use change in desert areas has been the conversion of relatively barren drylands for agricultural needs, partially through irrigation. The conversion has historically primarily been to use the land for graz...
06 Mar 2006 - by Hugo Ahlenius, UNEP/GRID-Arendal
Radioactive waste hotspots and transboundary pollution in Central Asia’s Ferghana Valley
The Soviet Union used the Ferghana Valley as one of its main sources of metal and uranium ore. The area has many nuclear waste storage sites, abandoned uranium mines with poorly secured tailing dams and nuclear reacto...
15 Dec 2006 - by Emmanuelle Bournay
Impact of human activities on reindeer habitat - Barents region
The impact of infrastructure development on reindeer potentially threatens the cultural traditions of the Barents region indigenous people and their chosen way of life. The probability of impact on wildlife, vegetation a...
26 Jan 2006 - by Philippe Rekacewicz, Julien Rouaud, UNEP/GRID-Arendal
Walnut forest in the Jalal-Abad province (Kyrgyzstan)
The walnut forest is remnants of Central Asia Tertiary era subtropical forests. They are located primarily in the northern slopes of the Ferghana and Chatkal ranges of the Tien Shan and on the southern slopes of the Giss...
16 Mar 2006 - by Viktor Novikov, UNEP/GRID-Arendal
Annual flow of benefits from forests in selected countries
In most countries, the marketed values of ecosystems associated with timber and fuelwood production are less than one third of the total economic value, including non-marketed values such as carbon sequestration, watersh...
30 Nov 2007 - by Philippe Rekacewicz, Emmanuelle Bournay, UNEP/GRID-Arendal
Sheep and goats in the Caucasus ecoregion
Over the recent number of years, as the economy came to a standstill, individual farms have replaced collective farming and subsistence agriculture and livestock breeding (cattle, sheep and goat) have became common. Alon...
29 Jan 2008 - by Manana Kurtubadze
Pasture land in the Caucausus ecoregion
Overgrazing and uncontrolled livestock grazing threatens steppe, subalpine and alpine ecosystems. A third of pasturelands in the region are subject to erosion. Sheep grazing in the winter ranges and the steppes and semi-...
29 Jan 2008 - by WWF-Caucasus, design Manana Kurtubadze
Savannas and tropical grasslands
Savannas cover large areas of Africa and South America and can store significant amounts of carbon, especially in their soils. Activities such as cropping, heavy grazing and increased frequency or intensity of fires ca...
27 May 2009 - by Riccardo Pravettoni, UNEP/GRID-Arendal
Reindeer herding - vegetation impacts (Norway and Finland)
A very high-resolution false color Ikonos-2 satellite image of Jauristunturit in the border zone shared by Norway and Finland. Image acquired 28 June 2001. The main vegetation type is lichen dominated tundra heath with d...
17 Mar 2010 - by Hugo Ahlenius, GRID-Arendal & CAFF
Environmental threats in the Barents Region
The Barents region is in the Arctic and covers the area of Western Russia and the northern areas of Finland, Sweden and Norway. This map indicates the political boundaries and economic areas in the region. More important...
04 Oct 2005 - by Philippe Rekacewicz, UNEP/GRID-Arendal
Agriculture land use distribution - croplands and pasture land
The World's agricultural land is used in different ways, depending on climatic and soil factors, but also related to cultural and social issues. The majority of croplands, where rice, wheat, legumes and corn - among othe...
08 Mar 2006 - by Hugo Ahlenius, UNEP/GRID-Arendal
Agriculture land use distribution - croplands and pasture land
The World's agricultural land is used in different ways, depending on climatic and soil factors, but also related to cultural and social issues. The majority of croplands, where rice, wheat, legumes and corn - among othe...
28 Mar 2006 - by Hugo Ahlenius, UNEP/GRID-Arendal