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Science 30 October 1998:
Vol. 282. no. 5390, p. 841
DOI: 10.1126/science.282.5390.841e
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This Week in Science

Figure 1

Is world food production sustainable? What influence will global change have on ecosystems? Can historical trends in atmospheric contaminants be determined? Such questions are difficult to answer, in part because the ecological processes involved are slow and short-term studies often fail to detect trends. Rasmussen et al. (p. 893) overview the contribution that a small number of long-term agroecosystem experiments (in some cases dating back to the middle of the last century) have been making in assessing changes in the environment and their influence on agricultural and natural ecosystems.




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Science. ISSN 0036-8075 (print), 1095-9203 (online)