By Josef Nösberger, S.P. Long, R.J. Norby, M. Stitt, G.R. Hendrey, H. Blum
This e-book presents an up to date overview of the results of accelerating atmospheric carbon dioxide on agroecosystems, forests, and grasslands. It summarizes the most findings from thirteen experiments with annual plants, everlasting pastures and plantation forests at eleven websites in the course of the global in past times ten years. the implications considerably regulate our notion of the way emerging CO2 will without delay have an effect on those controlled ecosystems.
Read or Download Managed Ecosystems and CO2: Case Studies, Processes, and Perspectives (Ecological Studies) PDF
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Extra info for Managed Ecosystems and CO2: Case Studies, Processes, and Perspectives (Ecological Studies)
The large surge of photosynthate into the soil system with the suddenly increased CO2 may bind nitrogen or via accelerated root uptake place an unrealistically large demand on soil nutrients, causing the stimulation of carbon gain by the system to be transitory (Luo and Reynolds 1999; Pendall et al. 2004). There is some experimental evidence to suggest this may be a problem for FACE experiments. The downward adjustment of net primary production (NPP) due to such soil nutrient limitation was demonstrated for loblolly pine in North Carolina with moderate soil fertility (Oren et al.
FACTS-II O3 treatment aimed for an average of 60 ppb. O3 fumigation did not occur when leaves were wet due to dew or rain. The SoyFACE [O3] target was adjusted to 20 % above the ambient value, the actual seasonal elevation was 21 % and O3 fumigation did not occur when leaves were wet with dew or rain (D. Ort, personal commuication). 11 tions made free-air releases unacceptable as an experimental method. Nevertheless, the pressing need to conduct plant and ecosystem fumigation experiments under realistic field conditions was widely perceived, as the limitations of chamber methods became increasingly apparent.
Plant Cell Environ 26: 705–714 Dermody O, Long SP, DeLucia EH (2006) How does elevated CO2 or ozone affect leaf-area index of soybean when applied independently? New Phytol 169:145–155 FAO (2002) FAO-STAT statistics database. UN Food and Agriculture Organization, Rome Gifford RM (1994) The global carbon cycle: a viewpoint on the missing sink. Aus J Plant Phys 21:1–15 Introduction 13 IPCC (2001a) Climate change 2001: impacts, adaptation and vulnerability. Cambridge University Press, Cambridge IPCC (2001b) Climate change 2001: the scientific basis.