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      Agricultural intensification and ecosystem properties.

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          Abstract

          Expansion and intensification of cultivation are among the predominant global changes of this century. Intensification of agriculture by use of high-yielding crop varieties, fertilization,irrigation, and pesticides has contributed substantially to the tremendous increases in food production over the past 50 years. Land conversion and intensification,however, also alter the biotic interactions and patterns of resource availability in ecosystems and can have serious local, regional, and global environmental consequences.The use of ecologically based management strategies can increase the sustainability of agricultural production while reducing off-site consequences.

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          Author and article information

          Journal
          Science
          Science (New York, N.Y.)
          American Association for the Advancement of Science (AAAS)
          0036-8075
          0036-8075
          Jul 25 1997
          : 277
          : 5325
          Affiliations
          [1 ] Ecosystem Sciences Division, Department of Environmental Science, Policy and Management, University of California, Berkeley, CA, USA.
          Article
          10.1126/science.277.5325.504
          20662149
          5ad7a4e6-7cab-4e23-9890-2e1404be61b6
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