Gauging the effects of water scarcity on an irrigated planet

Growing global food demand, climate change, and climate policies favoring bioenergy production are expected to increase pressures on water resources around the world. Many analysts predict that water shortages will constrain ...

World losing 2,000 hectares of farm soil daily to salt damage

Every day for more than 20 years, an average of 2,000 hectares of irrigated land in arid and semi-arid areas across 75 countries have been degraded by salt, according to a study by UN University's Canadian-based Institute ...

Plugging water's effects in an Earth system model

(Phys.org) —Connecting several data pipes in a popular land model, a research team led by Pacific Northwest National Laboratory simulated how irrigation from both surface water and groundwater affects the Earth's water ...

Irrigation can give rise to increased precipitation

PhD candidate Obbe Tuinenburg defended his doctoral thesis on the 15th of April, 2013. His research related to the effects of large-scale irrigation in India on the atmosphere and rainfall. One of the conclusions of this ...

Salt-tolerant crops show higher capacity for carbon fixation

Salt can have drastic effects on the growth and yield of horticultural crops; studies have estimated that salinity renders an about one-third of the world's irrigated land unsuitable for crop production. Imbalances in soil ...

Asia faces food shortage by 2050 without water reform

A comprehensive new study of irrigation in Asia warns that, without major reforms and innovations in the way water is used for agriculture, many developing nations face the politically risky prospect of having to import more ...

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