| Autor: |
Reyenga, P. J., Howden, S. M., Meinke, H., Hall, W. B. |
| Předmět: |
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| Zdroj: |
Environment International. Sep2001, Vol. 27 Issue 2/3, p195. 6p. |
| Abstrakt: |
Discusses the changes likely in crop production as a result of global changes in CO[sub2] levels in the atmosphere and climate. How APSIM, a cropping system model, was used to investigate the potential impact of these changes on the distribution of cropping along an environmental transect in south Australia; Effects of several global change scenarios studied including (1) historical climate and CO[sub2] levels, (2) historic climate with elevated CO[sub2], (3) warmer climate, (4) drier climate, (5) wetter climate and (6) most likely climate changes; Results suggesting that under most scenarios, the cropping boundary moved northwards, except the reduced rainfall scenario (4), which resulted in a small retreat of cropping from its current extent; How increases in CO[sub2] levels over the current climate record have resulted in small but significant increases in simulated yields; Model limitations. |
| Databáze: |
GreenFILE |
| Externí odkaz: |
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Full Text from ScienceDirect