In consequence of the current increase in atmospheric CO2 concentration, a large research effort has been devoted to clarifying the response of plants and ecosystems to this peculiar aspect of global change. The results have often been contradictory, also in consequence of the different experimental techniques. Through recent years, attention has moved from single physiological processes, often investigated in artificial environments with the risk of experimental artefacts, to the analysis of whole ecosystems, examined, as far as possible, in their natural conditions.The chapter reviews the technical development in fumigation facilities, and the main experimental results, focusing in particular on forests and grasslands, including lichens and mosses. The response of glasshouse grown horticultural plants is also outlined. Finally, attention is devoted to the effects of elevated CO2 on soil and hypogeous growth, mineral nutrition and soil microbial populations; on these topics, many questions are still open, and research appears to be promising.
Plant response to elevate carbon dioxide (chapter 7)
SANITA' di TOPPI, LUIGI
2003-01-01
Abstract
In consequence of the current increase in atmospheric CO2 concentration, a large research effort has been devoted to clarifying the response of plants and ecosystems to this peculiar aspect of global change. The results have often been contradictory, also in consequence of the different experimental techniques. Through recent years, attention has moved from single physiological processes, often investigated in artificial environments with the risk of experimental artefacts, to the analysis of whole ecosystems, examined, as far as possible, in their natural conditions.The chapter reviews the technical development in fumigation facilities, and the main experimental results, focusing in particular on forests and grasslands, including lichens and mosses. The response of glasshouse grown horticultural plants is also outlined. Finally, attention is devoted to the effects of elevated CO2 on soil and hypogeous growth, mineral nutrition and soil microbial populations; on these topics, many questions are still open, and research appears to be promising.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
