作成者 |
|
|
|
|
|
本文言語 |
|
出版者 |
|
|
発行日 |
|
収録物名 |
|
巻 |
|
開始ページ |
|
終了ページ |
|
出版タイプ |
|
アクセス権 |
|
関連DOI |
|
|
関連URI |
|
|
関連情報 |
|
|
概要 |
Can experimental investigations of complex systems provide a clearer basis on which to make predictions about the real world? Can model ecosystems predict, at least qualitatively, natural effects? Usi...ng two superficially very different grassland ecosystems (natural alpine grassland and grassland model ecosystems) the effects of elevated atmospheric carbon dioxide (CO_2) on these systems are compared. Although very different in composition, climatic conditions and successional stage, results from the two experiments show considerable similarities. Both experiments also highlight the implications for long-term feedback processes in soil ecosystems that are subject to rising global atmospheric CO_2 concentrations. Finally, while studies show that small-scale, short-term single species experiments can yield misleading results we advocate the use of either field manipulations of real ecosystems or, if this is not possible for reasons of cost or time, more realistic (and complex) model systems (microcosms).続きを見る
|