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Tag: Cultivation

Effect of Climate Change on Crop Yields in the 2040s under the Medium Impact Scenario, no adaptation and no irrigation water constraints
Water constraints are perceived as the most severe impact of climate change on the agricultural sector. Climate change will inevitably increase the number of areas needing irrigation, the water demand for crops, and ...
09 Dec 2015 - by Levi Westerveld
Effect of Climate Change on Crop Yields in the 2040s in the South Caucasus
The changes in crop yields, however, vary between locations. For certain crops in the mountain regionsthe changes may, in some cases, be beneficial. When assessing the impact of changes in temperature and precipitation, ...
09 Dec 2015 - by Levi Westerveld
Projected changes in maize crops, Venezuela
Agriculture is a key sector in the region’s economy and it employs an important proportion of the economically active population. Climate change could adversely affect Latin American agricultural regions, especially trop...
06 Nov 2005 - by Viktor Novikov, UNEP/GRID-Arendal
Cultivated Land in Aral Sea Region [Russian]
Between 1990 and 2000 the area of cultivated land per capita in the Aral Sea region has dramatically reduced. The predictive models to the year 2020 show the increase demand in irrigation of the region. In Russian.
14 Feb 2006 - by I. Atamuradova, V. Yemelin, P. Rekacewicz, UNEP/GRID-Arendal
Cultivated Land in Aral Sea Region
Between 1990 and 2000 the area of cultivated land per capita in the Aral Sea region has dramatically reduced. The predictive models to the year 2020 show the increase demand in irrigation of the region.
14 Feb 2006 - by I. Atamuradova, V. Yemelin, P. Rekacewicz, UNEP/GRID-Arendal
Extent of cultivated systems, 2000
More land was converted to cropland in the 30 years after 1950 than in the 150 years between 1700 and 1850. Cultivated systems (areas where at least 30% of the landscape is in croplands,shifting cultivation, confined liv...
30 Nov 2007 - by Philippe Rekacewicz, Emmanuelle Bournay, UNEP/GRID-Arendal
Biotechnology and modern biotechnology defined
Modern biotechnology is a term adopted by international convention to refer to biotechnological techniques for the manipulation of genetic material and the fusion of cells beyond normal breeding barriers. The most obviou...
03 Jan 2008 - by IAASTD/Ketill Berger, UNEP/GRID-Arendal
Land area: Conventional and genetically modified crops
While many regions are actively experimenting with GMOs at a small scale, the highly concentrated cultivation of GM crops in a few countries (nearly three-fourths in only the US and Argentina, with 90% in the four countr...
03 Jan 2008 - by IAASTD/Ketill Berger, UNEP/GRID-Arendal
Above-ground carbon-stock density changes
In Batang Toru, land use changes and deforestation led to an overall loss of around 10 tonnes of carbon per hectare between 1994 and 2009. Due to its exploitation for the cultivation of oil palm, the peat area of Tripa h...
13 Sep 2011 - by Riccardo Pravettoni, UNEP/GRID-Arendal
Land not suitable for major agriculture crops
An estimated 88% of Sumatran orangutan habitat is on land classified by Indonesian Government studies (RePPProT) as completely unsuitable for cultivation of major crops such as oil palm, rubber, robusta coffee or cocoa. O...
13 Sep 2011 - by Riccardo Pravettoni, UNEP/GRID-Arendal