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Projected changes in maize crops, Venezuela 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 tropical Latin America, by reducing the amount of land available for cultivation due to increased risk of desertification, and by decreasing yields, especially on rain fed lands due to changes in climatic patterns. The dry land in the...
06 Nov 2005 - by Viktor Novikov, UNEP/GRID-Arendal
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Cultivated Land in Aral Sea Region [Russian] 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
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Cultivated Land in Aral Sea Region 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
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Extent of cultivated systems, 2000 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 livestock production, or freshwater aquaculture) now cover one quarter of Earth’s terrestrial surface.
30 Nov 2007 - by Philippe Rekacewicz, Emmanuelle Bournay, UNEP/GRID-Arendal
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Biotechnology and modern biotechnology defined 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 obvious example is genetic engineering to create genetically modified/engineered organisms (GMOs/GEOs) through “transgenic technology” involving the insertion or deletion of genes.
03 Jan 2008 - by IAASTD/Ketill Berger, UNEP/GRID-Arendal
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Land area: Conventional and genetically modified crops 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 countries including Brazil and Canada) is also interpreted as an indication of a modest uptake rate. GM crop cultivation may have increased by double digit rates for the past 10 years, but over 93% of cultivated land still supports conv...
03 Jan 2008 - by IAASTD/Ketill Berger, UNEP/GRID-Arendal
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Above-ground carbon-stock density changes 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 had to face a much more important decrease of 66 tonnes of carbon per hectare in the time period 1990-2009. In terms of CO2 emissions, it corresponds to an overall emission per year of 634,903 tCO2.
13 Sep 2011 - by Riccardo Pravettoni, UNEP/GRID-Arendal
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Land not suitable for major agriculture crops 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. Only 1.3% of orangutan habitat is deemed ideal for one or more of these crops, while 10.7% could be suitable with significant inputs, such as fertilizer and irrigation.
13 Sep 2011 - by Riccardo Pravettoni, UNEP/GRID-Arendal
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