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Hakutulokset: Hakutulos
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yhteensä 2 hakutulosta
Ecological Heterogeneity
nidottu,
2011,
englanti,
ISBN 9781461277811
An attractive, promising, and frustrating feature of ecology is its complex ity, both conceptual and observational. Increasing acknowledgment of the importance of scale testifies …
Advances in Soil Science
nidottu,
2011,
englanti,
ISBN 9781461389842
From the beginning of agriculture until about 1950, increased food production came almost entirely from expanding the cropland base. Since 1950, however, the yield per unit of land …