Graphics Library >> Irrigation

Tag: Irrigation

Unsustainable water withdrawals for irrigation
The imbalance in long-term water budgets necessitates diversion of surface water or the tapping of groundwater resources. The areas shown with moderate-to-high levels of unsustainable use occur over each continent and ar...
30 Nov 2007 - by Philippe Rekacewicz, Emmanuelle Bournay, 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 f...
03 Jan 2008 - by Ketill Berger
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
Projected agriculture in 2080 due to climate change
With our climate changes, we have to adapt our ways to a new environment – in most cases warmer and possibly wetter and drier. Projections on the climate in the future provide some guidance for us, but how can we create ...
12 May 2008 - by Hugo Ahlenius, UNEP/GRID-Arendal
Natural resource - water (freshwater run-off)
Freshwater – a natural resource which has been adopted as a human right by the UN in 2002: 'the human right to water entitles everyone to sufficient; affordable; physically accessible; safe and acceptable water for perso...
12 May 2008 - by Hugo Ahlenius, UNEP/GRID-Arendal
Many of the largest rivers in the Himalayas Hindu Kush region are strongly dependent upon snow and glacial melt for waterflow
Except for the fact that glaciers are melting rapidly in many places, we do not have adequate data to more accurately project when and where water scarcity will affect irrigation schemes in full. Making accurate projecti...
02 Feb 2009 - by Ieva Rucevska, 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
Agricultural production increases, per commodity 1965-2008
The use of fertilizers accounts for approximately 50% of the yield increase, and greater irrigation for another substantial part (FAO, 2003). Current FAO projections in food demand suggest that cereal demand will incr...
02 Feb 2009 - by Hugo Ahlenius, UNEP/GRID-Arendal
Food consumption – trends and projections
Increase in crop production has mainly been a function of increases in yield due to increased irrigation and fertilizer use. However, this may change in the future towards more reliance on cropland expansion, at the co...
02 Feb 2009 - by Hugo Ahlenius, UNEP/GRID-Arendal
Agricultural trends, production, fertilisers, irrigation and pesticides
Figure 8: Global trends (1960–2005) in cereal and meat production, use of fertilizer, irrigation and pesticides. (Source: Tilman, 2002; FAO, 2003; International Fertilizer Association, 2008; FAOSTAT, 2009).
02 Feb 2009 - by Hugo Ahlenius, UNEP/GRID-Arendal
Projected agriculture in 2080 due to climate change
With our climate changes, we have to adapt our ways to a new environment – in most cases warmer and possibly wetter and drier. Projections on the climate in the future provide some guidance for us, but how can we create ...
02 Feb 2009 - by Hugo Ahlenius, UNEP/GRID-Arendal
Lake Chad - decrease in area 1963, 1973, 1987, 1997 and 2001
Straddling the borders of Nigeria, Chad, Niger and Cameroon in West Africa, Lake Chad has been a source of freshwater for irrigation projects in all these countries. This graphic traces the shrinkage of Lake Chad and cha...
17 May 2005 - by Philippe Rekacewicz, UNEP/GRID-Arendal
India case studies, locator map
India case studies, locator map
11 Jul 2006 - by Hugo Ahlenius, UNEP/GRID-Arendal
Lake Chad - decrease in area 1963, 1973, 1987, 1997 and 2001
Straddling the borders of Nigeria, Chad, Niger and Cameroon in West Africa, Lake Chad has been a source of freshwater for irrigation projects in all these countries. This graphic traces the shrinkage of Lake Chad and cha...
11 Jul 2006 - by Philippe Rekacewicz and Hugo Ahlenius UNEP/GRID-Arendal
India, income from crops
India, income from crops, irrigation case study etc
11 Jul 2006 - by Hugo Ahlenius, UNEP/GRID-Arendal
Freshwater use by sector at the beginning of the 2000s
The agricultural sector is by far the biggest user of freshwater. Analysis indicates that: - In the United States, agriculture accounts for some 49% of total freshwater use, with 80% of this volume being used for irriga...
26 Jan 2009 - by Philippe Rekacewicz (Le Monde diplomatique)
The disappearance of the Aral Sea
The demise of the Aral Sea in central Asia was caused primarily by the diversion of the inflowing Amu Dar’ya and Syr Dar’ya rivers to provide irrigation water for local croplands. These diversions dramatically reduced th...
26 Jan 2009 - by GRIDA
Tigris and Euphrates rivers fragmentation
It has been predicted that access to water will create conflict between countries. In Africa, central Asia, west Asia and the Americas, some countries are already arguing fiercely over access to rivers and inland seas, a...
26 Jan 2009 - by Philippe Rekacewicz
The Mekong River - survival for millions
The Mekong River - survival for millions Following the course of the Mekong River helps to understand the human/river hydrological interdependence. From its source on the Tibetan Plateau it drops 5,000 metres and flows a...
26 Jan 2009 - by Philippe Rekacewicz
Excessive withdrawal of renewable water resources
The countries known to be experiencing stress or scarcity of water per capita are roughly those which are excessively using their renewable water resources (North Africa, Middle-East and central Asia including Afghanista...
26 Jan 2009 - by Philippe Rekacewicz (Le Monde diplomatique), February 2006
Previous | 1 2 3 | Next