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Tag: Agriculture

Water requirements for food production 1960-2050
The requirements for water in agriculture will need to increase in order to meet the Millennium Development Goal 1, target 2 'Halve, between 1990 and 2015, the proportion of people who suffer from hunger'. To decrease hu...
02 Feb 2009 - by Hugo Ahlenius, UNEP/GRID-Arendal
Market access (estimated travel time) in agricultural areas
Accessibility to food is also determined by the long-term trend in food prices (which is a different issue from price volatility). The rising trend in global food prices is likely to persist in the next decade. In the...
02 Feb 2009 - by Hugo Ahlenius, UNEP/GRID-Arendal
Trends in mean depth of fish catches
Food losses in the field (between planting and harvesting) could be as high as 20–40% of the potential harvest in developing countries due to pests and pathogens (Kader, 2005). Postharvest losses vary greatly among co...
02 Feb 2009 - by Hugo Ahlenius, UNEP/GRID-Arendal
Trends in world agricultural exports
The availability of food within a specific country can be guaranteed in two ways: Either by food production in the country itself or by trade. The first option has been discussed extensively in the previous chapters. ...
02 Feb 2009 - by Hugo Ahlenius, UNEP/GRID-Arendal
Selected drought events in Africa, 1981-1999, and livestock impacts
Water scarcity in terms of drought or depleted groundwater could therefore have great impacts on livestock and rangelands. These interactions are also complex. While drought can directly threaten livestock, other fact...
02 Feb 2009 - by Hugo Ahlenius, UNEP/GRID-Arendal
Biofuels production 2005, by country (ethanol and biodiesel)
Production of crops for biofuels also competes with food production (Banse et al., 2008). Indeed, the corn equivalent of the energy used on a few minutes drive could feed a person for a day, while a full tank of ethan...
02 Feb 2009 - by Hugo Ahlenius, UNEP/GRID-Arendal
A photographic impression of the gradual changes in two ecosystem types
Globally, over 1,000 (87%) of a total of 1,226 threatened bird species are impacted by agriculture. More than 70 species are affected by agricultural pollution, 27 of them seriously. Europe’s farmland birds have decl...
02 Feb 2009 - by Hugo Ahlenius, UNEP/GRID-Arendal
Tropical agriculture
There is great potential to restore carbon in tropical agricultural soils through management practices that, in the right circumstances, can also increase productivity. Agroforestry can offer particularly large carbon ...
27 May 2009 - by Riccardo Pravettoni, UNEP/GRID-Arendal
Wastewater in urban agriculture - Resource or threat?
Is reuse of wastewater a benefit or a threat for agri- culture?
01 Mar 2010 - by UNEP/GRID-Arendal
Deteriorated forest hotspots
Despite showing signs of slowing at the global level, the present pace of deforestation continues to be a source of serious concern for Latin America and the Caribbean. While the region’s forests represent one of the mos...
22 Nov 2010 - by Riccardo Pravettoni, UNEP/GRID-Arendal
Latin America greenhouse gas emitters by sector
According to reports from the region’s countries, contained in national communications to the United Nations Framework Convention on Climate Change, the main sources of greenhouse gas emissions relate to changes in land ...
22 Nov 2010 - by Riccardo Pravettoni, 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
Household income by source, Masvingo province, Zimbabwe
A study of households (rich and poor) in the Masvingo Province in southeastern Zimbabwe provides a good example of how agricultural income complements wild income and how it compares with other income sources such as wag...
11 Jul 2006 - by Hugo Ahlenius, UNEP/GRID-Arendal
Emissions from agriculture
Average emissions Thousand million tonnes of CO2 equivalent per year
05 Jan 2009 - by UNEP/GRID-Arendal
Water competition between cities and agriculture
It is estimated that water pollution denies close to 1.3 billion people (20% of the global population in 2000) access to clean water supplies. In 1986, WHO reported that there were 250 million new cases of waterborne dis...
26 Jan 2009 - by Philippe Rekacewicz
Cereal productivity in sub-Saharan Africa under a projected Intergovernamental Panel on Climate Change (IPCC) scenario
A majority of the population in sub-Saharan African lives in rural areas, where income and employment depend almost entirely on rain-fed agriculture. This population is today at high risk. Sub-Saharan Africa already has ...
26 Jan 2009 - by Philippe Rekacewicz
Utilisation des terres et agriculture
Projections de la modification de l’utilisation des terres pour la période 1700–2050.
08 Jun 2009 - by Hugo Ahlenius, UNEP/GRID-Arendal
Agriculture and Fisheries
Environment and Security in the Mediterranean: Agriculture and Fisheries
17 Nov 2009 - by Emmanuelle Bournay and Matthias Beilstein, Zoï Environment Network
Land cover change in Batang Toru
Migration from the island of Nias to the West Batang Toru forests over the last two decades has been largely spontaneous. These settlers have opened up primary forests for agriculture and hunt many species of local wildl...
13 Sep 2011 - by Riccardo Pravettoni, UNEP/GRID-Arendal
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