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THE ECONOMIC IMPACT OF CHANGING WATER QUALITY ON IRRIGATED AGRICULTURE IN THE LOWER VAAL AND RIET RIVERS
IN THE LOWER VAAL AND RIET RIVERS THE ECONOMIC IMPACT OF CHANGING WATER QUALITY ON IRRIGATED AGRICULTURE IN THE LOWER VAAL AND RIET RIVERS Report No: 947/1/02 November 2002 ... and leaching rates" (Blackwell, et al. 2000). Current literature and research on salinity management in irrigation agriculture also fails to capture the stochastic nature of inter-seasonal irrigation water quality as well as ...
fwr.org

October 4, 2001: Worsening Water Shortages Threaten China's Food Security
In the Hai River basin-where industry and cities, including Beijing and Tianjin, now get priority-irrigated agriculture could largely disappear by 2010, forcing a shift back to less productive rain-fed agriculture. ... of 62 percent. With water worth easily 70 times as much in industry as in agriculture, farmers almost always lose in the competition with cities. As water tables continue to fall, ...
www.earth-policy.org

Transcript: How Water Scarcity Will Shape the New Century
The governments actions in giving upstream provinces priority suggests that Beijing is prepared to sacrifice irrigated agriculture in the lower regions of the basin in order to develop the interior because ... huge income gap between the coastal provinces and the interior. In the competition for water, agriculture almost always loses. The reason is basic economics. In China, for example, if you have ...
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Futurewater - Expertise: Irrigation
The approach FutureWater investigates how sustainable irrigated agriculture can be implemented or improved making sure that positive effects outweigh possible negative consequences. Using simulation models such as SWAP (Soil Water Atmosphere Plant), sometimes ...
www.futurewater.nl

The Regional Impacts of Climate Change
The Aral Sea is an illustrative example of the multiplicative effects of resource overuse, which can lead to local environmental and even climate change. Extensive redirection of water from feeder rivers to irrigated agriculture since 1960 has led to a reduction in the surface area of the lake, as well as damage to the ...
www.grida.no

Adaptive strategies
Adoption of irrigated agriculture where opportunities permit Use of "modern" veterinary services where services are available Supplementary feeding of livestock as seasonally required Other adaptive strategies were specific to the groups: ...
www.iisd.org

WWF - Freshwater - Conserving the Source of Life
Lake Bogoria -- are dependent on the river for their livelihood. Both upstream and downstream communities depend on the river for agriculture, the main activity for food production. The last few years have seen an increase in irrigated agriculture, in some cases resulting in over-abstraction of river water with water hardly reaching the communities downstream. » Read ...
panda.org

IWMI : Agriculture, Water and Cities
Key Research Areas Safe and productive use of wastewater in irrigated agriculture To make a productive asset out of domestic wastewater through viable interventions along the contamination pathway which increase food safety and reduce health risks for farmers and ...
www.iwmi.cgiar.org

NBMA - Biosolids Agriculture Facts
Ellensburg, Everett, King County, Pullman, Spokane (Washington). Irrigated agriculture: Biosolids are a desirable soil amendment in irrigated agriculture, reducing stress to plants between irrigation cycles. Following biosolids applications to highly alkaline soils, the return of a normal, healthy ...
nwbiosolids.org

Water for agriculture
(GL) of water in 2004-05. Around 65 per cent of this was used for agriculture, a further 11 per cent for urban uses and 12 per cent for industrial uses. Water ... to modernise irrigation infrastructure to save water, increase efficiency of water use and improve the sustainability of irrigated agriculture. This will lead to more efficient, productive and profitable use of water with a view ...
www.environment.gov.au