Trends in groundwater nitrate concentrations
The graph shows the development of Nitrate concentration in groundwater from 1980 to 1995 in France, Britain and Denmark combined. Nitrate is a naturally occurring compound and is normal in small amounts, but excess amounts can pollute supplies of groundwater. Nitrate travels through soil contaminated by fertilizers, livestock waste and septic systems, carried by rain or irrigation water into groundwater supplies.
14 Mar 2006 - by Philippe Rekacewicz, UNEP/GRID-Arendal
Animal density
Graphics from the year 2000 Baltic 21 biannual indicator-based status report on sustainable development in the Baltic Sea Region (Baltic 21 Series No 1/2000). This graphic shows a general decline in animal density in Baltic countries from 1990 to 1996.
10 Mar 2006 - by Philippe Rekacewicz, UNEP/GRID-Arendal
CH4 emissions in 2000; Latin America and selected countries
Since pre-industrial times, the atmospheric concentration of methane (CH4) has increased by 150%. Methane is a greenhouse gas that has a global warming potential that is 23 times stronger than CO2. (IPCC 2001)
In 2000 the total world CH4 emissions was estimated at 6,000 million tonnes of CO2equivalents. In South America the emissions of CH4 per capita is almost twice the world average, while the per capita emissions in Central America and Caribb...
17 May 2005 - by UNEP/GRID-Arendal
Annual deforestation in the Amazon and resulting CO2 emissions
According to the World Resources Institute,Brazil had the highest carbon dioxide equivalent emissions in the region in 2001, primarily due to changes in land use.) Most of the region’s forests are in South America, particularly in Brazil and Peru, which comprise 92% of the total forest cover. These countries are among the 10 that hold two-thirds of the world’s forests and jungles.
Because of its size, the greatest extent of deforestation is in B...
17 May 2005 - by UNEP/GRID-Arendal
Norwegian emissions of methane (1985-1996)
The graph shows Norwegian emissions of methane from 1985 to 1996. Methane is emitted to the atmosphere by both natural and anthropogenic sources. Among these are fossil fuels, waste dumps, and livestock.
12 Feb 2006 - by Philippe Rekacewicz, Emmanuelle Bournay, 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 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...
02 Nov 2006 - by Hugo Ahlenius, 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 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
Relative changes in food supply (crops and livestock): industrial and developing countries
Over the past 40 years, globally, intensification of cultivated systems has been the primary source (almost 80%) of increased output. But some countries, predominantly found in sub-Saharan Africa, have had persistently low levels of productivity, and continue to rely on expansion of cultivated area.
30 Nov 2007 - by Philippe Rekacewicz, Emmanuelle Bournay, UNEP/GRID-Arendal
Greenhouse gas (GHG) emissions by source, 2004
Overall, agriculture (cropping and livestock) contributes 13.5 % of global greenhouse gas emissions mostly through emissions of methane and nitrous oxide (about 47% and 58% of total anthropogenic emissions of CH4 and N2O, respectively). The largest producer is power generation at 25.9% followed by industry with 19.4%.
03 Jan 2008 - by IAASTD/Ketill Berger, UNEP/GRID-Arendal
Counting women’s labor
Besides housekeeping and child rearing, women and girls are usually responsible for fetching water and fuel wood. Women and girls tend to perform tasks such as planting, transplanting, hand weeding, harvesting, picking fruit and vegetables, small livestock rearing, and post-harvest operations such as threshing, seed selection, and storage, while mechanized work (preparing the land, irrigation, mechanical harvesting, and marketing) is generally a ...
03 Jan 2008 - by Ketill Berger
Pig farming 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. Along with the increase in farming, more and more land has been used as pasture land. Despite their low productivity, high Mountain areas are increasingly used as pasture grounds for sheep - leading to soil erosion and evoking avalanc...
29 Jan 2008 - by Manana Kurtubadze
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. Along with the increase in farming, more and more land has been used as pasture land. Despite their low productivity, high Mountain areas are increasingly used as pasture grounds for sheep - leading to soil erosion and evoking avalanc...
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-deserts of the eastern Caucasus has nearly tripled in the past decade. Intensive grazing has resulted in reduced species diversity and habitat degradation. Secondary plant communities now occupy 80 percent of grasslands in the sub...
29 Jan 2008 - by WWF-Caucasus, design Manana Kurtubadze
Cattle 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. Along with the increase in farming, more and more land has been used as pasture land. Despite their low productivity, high Mountain areas are increasingly used as pasture grounds for sheep - leading to soil erosion and evoking avalanc...
29 Jan 2008 - by Manana Kurtubadze
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
Compensation for sheep losses in Norway
Minimizing conflicts with livestock husbandry is the most important challenge for the conservation of wolverines. In Fennoscandia, few areas exist within the wolverines’ range where there is no conflict potential with sheep and/or domestic reindeer. For example in Norway, the practice is to leave sheep unattended on mountain pastures to graze during summer. Higher stock numbers and the loss of herding and livestock guarding traditions have increa...
01 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 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
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
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