By the same authors

From the same journal

Managing water in rainfed agriculture: The need for a paradigm shift

Research output: Contribution to journalArticle

Published copy (DOI)

Author(s)

  • Johan Rockstrom
  • Louise Karlberg
  • Suhas P. Wani
  • Jennie Barron
  • Nuhu Hatibu
  • Theib Oweis
  • Adriana Bruggeman
  • Jalali Farahani
  • Zhu Qiang

Department/unit(s)

Publication details

JournalAgricultural water management
DateE-pub ahead of print - 6 Nov 2009
DatePublished (current) - Apr 2010
Issue number4
Volume97
Number of pages8
Pages (from-to)543-550
Early online date6/11/09
Original languageEnglish

Abstract

Rainfed agriculture plays and will continue to play a dominant role in providing food and livelihoods for an increasing world population. This article describes the world's semi-arid and dry sub-humid savannah and steppe regions as global hotspots, in terms of water related constraints to food production, high prevalence of malnourishment and poverty, and rapidly increasing food demands. It argues that major water investments in agriculture are required. In these regions yield gaps are large, not due to lack of water per se, but rather due to inefficient management of water, soils, and crops. An assessment of management options indicates that knowledge exists regarding technologies, management systems, and planning methods. A key strategy is to minimise risk for dry spell induced crop failures, which requires an emphasis on water harvesting systems for supplemental irrigation. Large-scale adoption of water harvesting systems will require a paradigm shift in Integrated Water Resource Management (IWRM), in which rainfall is regarded as the entry point for the governance of freshwater, thus incorporating green water resources (sustaining rainfed agriculture and terrestrial ecosystems) and blue water resources (local runoff). The divide between rainfed and irrigated agriculture needs to be reconsidered in favor of a governance, investment, and management paradigm, which considers all water options in agricultural systems. A new focus is needed on the meso-catchment scale, as opposed to the current focus of IWRM on the basin level and the primary focus of agricultural improvements on the farmer's field. The article argues that the catchment scale offers the best opportunities for water investments to build resilience in small-scale agricultural systems and to address trade-offs between water for food and other ecosystem functions and services.

    Research areas

  • Catchment management, Integrated water resources management (IWRM), Water productivity

Discover related content

Find related publications, people, projects, datasets and more using interactive charts.

View graph of relations