HomeAboutActivitiesMapsPhotosPublicationsNews
 
Home >> Agriculture

Tag: Agriculture

Water requirements for food production 1960-2050 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 hunger the outputs in agriculture will need to increase, and thus the water use.
02 Feb 2009 - by Hugo Ahlenius, UNEP/GRID-Arendal
3
Market access (estimated travel time) in agricultural areas 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 long run, however, prices will decline (OECD-FAO, 2008).
02 Feb 2009 - by Hugo Ahlenius, UNEP/GRID-Arendal
4
Trends in mean depth of fish catches 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 commodities and production areas and seasons. In the United States, the losses of fresh fruits and vegetables have been estimated to range from 2% to 23%, depending on the commodity, with an overall average of about 12% losses b...
02 Feb 2009 - by Hugo Ahlenius, UNEP/GRID-Arendal
3
Trends in world agricultural exports 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. The second option has become more and more important (Figure 29), with increasing transport possibilities and storing capacities and the growing challenges faced by some countries in their domestic production, including becaus...
02 Feb 2009 - by Hugo Ahlenius, UNEP/GRID-Arendal
4
Selected drought events in Africa, 1981-1999, and livestock impacts 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 factors that influence water availability for livestock are seasonal droughts and socio-economic changes, such as permanent settlement and occupation of seasonal pastures by people other than pastoralists, availability and quality...
02 Feb 2009 - by Hugo Ahlenius, UNEP/GRID-Arendal
4
Biofuels production 2005, by country (ethanol and biodiesel) 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 ethanol in a large 4-wheel drive suburban utility vehicle could almost feed one person for a year. A recent OECD-FAO (2007) report expected food prices to rise by between 20% and 50% by 2016 partly as a result of biofuels. Already,...
02 Feb 2009 - by Hugo Ahlenius, UNEP/GRID-Arendal
4
A photographic impression of the gradual changes in two ecosystem types 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 declined by 48% in the past 26 years (European Bird Census Council, 2008). Pesticides and herbicides pose a threat to 37 threatened bird species globally (BirdLife, 2008), in addition to deleterious effects of agricultural chemica...
02 Feb 2009 - by Hugo Ahlenius, UNEP/GRID-Arendal
4
Tropical agriculture 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 gains, although it can increase water demand. Agricultural carbon sequestration policies will need to be tailored to particular circumstances to allow farmers to benefit.
27 May 2009 - by Riccardo Pravettoni, UNEP/GRID-Arendal
4
Wastewater in urban agriculture - Resource or threat? 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
2
Deteriorated forest hotspots 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 most important potential sources for mitigating greenhouse gas emissions, it equally accounted for approximately 70% of the world’s decrease in forests between 2005 and 2010 (FAO 2010). The global forest resource assessment (FRA) con...
22 Nov 2010 - by Riccardo Pravettoni, UNEP/GRID-Arendal
4
Latin America greenhouse gas emitters by sector 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 use, forestry, agriculture and energy consumption. Brazil stands out as the highest emitter of greenhouse gasses caused by land use changes, accounting for more than 800,000 metric tons of CO2 equivalent. The importance of agricul...
22 Nov 2010 - by Riccardo Pravettoni, UNEP/GRID-Arendal
4
Agriculture land use distribution - croplands and pasture land 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 other crops - are spread out in the Northern Hemisphere, in the temperate zone, and in South and Eastern Asia. Areas where primarily livestock is held for agricultural are dominant in Africa, South America and Australia.
08 Mar 2006 - by Hugo Ahlenius, UNEP/GRID-Arendal
4
Agriculture land use distribution - croplands and pasture land 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 other crops - are spread out in the Northern Hemisphere, in the temperate zone, and in South and Eastern Asia. Areas where primarily livestock is held for agricultural are dominant in Africa, South America and Australia.
28 Mar 2006 - by Hugo Ahlenius, UNEP/GRID-Arendal
4
Household income by source, Masvingo province, Zimbabwe 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 wages and remittances. Agricultural income—from crops and home gardens—contributed 30 percent of total household income (cash and subsistence income combined). Livestock rearing—a modified form of agriculture that relies on wild fora...
11 Jul 2006 - by Hugo Ahlenius, UNEP/GRID-Arendal
3
Emissions from agriculture Emissions from agriculture
Average emissions Thousand million tonnes of CO2 equivalent per year
05 Jan 2009 - by UNEP/GRID-Arendal
2
Water competition between cities and agriculture 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 diseases each year, causing the deaths of nearly 3.5 million people. An estimated 4.2 billion cases of waterborne diseases are reported each year, with diarrhoea accounting for 4 billion of the total (Cosgrove and Rijsberman, 2000; R...
26 Jan 2009 - by Philippe Rekacewicz
3
Cereal productivity in sub-Saharan Africa under a projected Intergovernamental Panel on Climate Change (IPCC) scenario 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 a highly variable and unpredictable climate and is acutely vulnerable to floods and droughts. A third of the people in the region live in drought-prone areas, and floods are a recurrent threat in several countries. With climate ch...
26 Jan 2009 - by Philippe Rekacewicz
4
Utilisation des terres et agriculture 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
2
Agriculture and Fisheries Agriculture and Fisheries
Environment and Security in the Mediterranean: Agriculture and Fisheries
17 Nov 2009 - by Emmanuelle Bournay and Matthias Beilstein, Zoï Environment Network
3
Land cover change in Batang Toru 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 wildlife, including orangutans. Currently at least eight Nias communities have been established inside the protected forest in the Batang Toru area, leading to the loss of more than 2,200 ha of orangutan forest habitat in specifically ...
13 Sep 2011 - by Riccardo Pravettoni, UNEP/GRID-Arendal
2
Previous | 1 2 3 4 5 6 7 8 9 10 | Next