Assessing the water challenge of a new green revolution in developing countries

Author(s): Rockström, J., M. Lannerstad and M. Falkenmark
In: Proceedings of the National Academy of Sciences of the United States of America 104: 6253-6260.
Year: 2007
Type: Journal / article
Theme affiliation: Landscapes
Link to centre authors: Falkenmark, Malin, Rockström, Johan
Full reference: Rockström, J., M. Lannerstad and M. Falkenmark. 2007. Assessing the Water Challenge of a New Green Revolution in Developing Countries. Proceedings of the National Academy of Sciences of the United States of America 104: 6253-6260.

Publication review

This article analyzes the water implications in 92 developing countries of first attaining the 2015 hunger target of the United Nations Millennium Development Goals and then feeding a growing population on an acceptable standard diet.

The water requirements in terms of vapor flows are quantified, potential water sources are identified, and impacts on agricultural land expansion and water tradeoffs with ecosystems are analyzed.

This article quantifies the relative contribution from infiltrated rainwater/green water in rain-fed agriculture, and liquid water/blue water from irrigation, and how far water productivity (WP) gains can go in reducing the pressure on freshwater resources.

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