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Tag: Productivity

Human population growth rates, 1990–2000, and per capita Gross Domestic Product (GDP) and biological productivity in 2000 in ecological systems
Millennium Assessment systems with the lowest net primary productivity and lowest GDP tended to have the highest population growth rates between 1990 and 2000. Urban, inland water, and marine systems are not included due...
30 Nov 2007 - by Philippe Rekacewicz, Emmanuelle Bournay, UNEP/GRID-Arendal
Milk productivity
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 the production of milk in Baltic countries...
10 Mar 2006 - by Philippe Rekacewicz, UNEP/GRID-Arendal
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
Plankton distribution changes, due to climate changes - North Sea
With melting sea ice and warming of the oceans, marine species change their distributions, affecting entire food chains and ocean productivity. In 2005 the subtropical dinoflagellate Ceratium hexacanthum was found in CPR...
01 Feb 2008 - by Hugo Ahlenius, UNEP/GRID-Arendal
World fisheries hotspots, 2004
The World’s most productive fishing grounds are confined to major hotspots, less than 10% of the World oceans. The maps shows annual catch (tonnes per km2) for the World’s oceans. Notice the strong geographic concurrence...
01 Feb 2008 - by Hugo Ahlenius, UNEP/GRID-Arendal
Major pathways and origins of invasive species infestations in the marine environment
All across the planet, the number and severity of outbreaks and infestations of invasive species (i.e. species purposefully or accidentally introduced in non-native environments) is growing, and invasions of marine habit...
01 Feb 2008 - by Hugo Ahlenius, UNEP/GRID-Arendal
Energy consumption in Central Asia [Russian]
Industry in Central Asia consumes two hundred to three hundred more energy than in Western Europe. The levels of productivity based on consumption of electricity and gross domestic product is noticeably lower in Central ...
14 Feb 2006 - by I. Atamuradova, V. Yemelin, P. Rekacewicz, UNEP/GRID-Arendal
Energy consumption in Central Asia
Industry in Central Asia consumes two hundred to three hundred more energy than in Western Europe. The levels of productivity based on consumption of electricity and gross domestic product is noticeably lower in Central ...
14 Feb 2006 - by I. Atamuradova, V. Yemelin, P. Rekacewicz, UNEP/GRID-Arendal
Variations in snow depth and ice cover, alpine lake at Hardangervidda plateau, Norway
Climate warming means that lowland lakes typically are experiencing longer ice-free periods, promoting greater biological productivity. However, despite this warming trend, biological productivity may be reduced, at leas...
01 Jun 2007 - by Hugo Ahlenius, 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 l...
30 Nov 2007 - by Philippe Rekacewicz, Emmanuelle Bournay, UNEP/GRID-Arendal
Total agricultural output
Substantial gains in agricultural productivity over the past 50 years have reduced rates of hunger and malnutrition, improved the health and livelihoods of many millions of people and stimulated economic growth in numero...
03 Jan 2008 - by IAASTD/Ketill Berger, UNEP/GRID-Are
Changes in available water in Africa: end of 20th and 21st centuries
Salinization affects about 10% of the world’s irrigated land, while the loss of biodiversity and its associated agroecological functions (estimated to provide economic benefits of US$ 1,542 billion per year) adversely af...
03 Jan 2008 - by IAASTD/Ketill Berger, UNEP/GRID-Arendal
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. Alon...
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. Alon...
29 Jan 2008 - by 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. Alon...
29 Jan 2008 - by Manana Kurtubadze
Natural resources - agricultural potential
Soils underpin the production of a wide range of agricultural and industrial goods and services. Soil productivity is essential to agricultural activities - for food security, cash income and supporting the livelihoods o...
12 May 2008 - by Hugo Ahlenius, UNEP/GRID-Arendal
Natural resource - solar power (potential)
More than two billion people cannot access affordable energy services today. They depend on inefficient locally collected and often unprocessed biomass-based fuels, such as crop residues, wood, and animal dung. Because c...
12 May 2008 - by Hugo Ahlenius, UNEP/GRID-Arendal
Natural resources - marine resources
Primary ocean productivity, as measured in grammes of carbon per square meter, from remote sensing imagery outlines the areas with rich marine life. These areas are characterised by an abundance of marine life and they p...
01 Feb 2008 - by Hugo Ahlenius, UNEP/GRID-Arendal
An increasing number of countries are leasing land abroad to sustain and secure their food production
The world regions are sharply divided in terms of their capacity to use science in promoting agricultural productivity in order to achieve food security and reduce poverty and hunger. For every US$100 of agricultural ...
02 Feb 2009 - by Hugo Ahlenius, UNEP/GRID-Arendal
Trends in productivity 1981-2003 (greening and land degradation)
Unsustainable practices in irrigation and production may lead to increased salinization of soil, nutrient depletion and erosion. An estimated 950 million ha of salt-affected lands occur in arid and semi-arid regions, ...
02 Feb 2009 - by Hugo Ahlenius, UNEP/GRID-Arendal
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