Trends and challenges in soil research 2009: linking global climate change to local long-term forest productivity
发表在:JOURNAL OF SOILS AND 9 83--88    于:2009
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简介:

Long-term impacts of global climate change (GCC) and local forest management on important biogeochemical cycles of carbon (C) and nutrient cycling in the soil–plant ecosystems are complex and difficult to assess (Oren et al. 2001; Reich et al. 2006; Xu and Chen 2006; Davidson et al. 2007; Chen and Xu 2008; Clark and Tilman 2008; Xu et al. 2008a, b), particularly under gradually and continuously rising atmospheric carbon dioxide concentration [CO2] and warming in the real world with multiple limiting factors (Hui et al. 2002; Savard et al. 2004; Büntgen et al. 2007; Feeley et al. 2007; Engelbrecht et al. 2007). In this editorial, as a part of the journal editorial series (Förstner and Salomons 2008), we highlight the recent developments and applications of advanced stable isotope, nuclear magnetic resonance (NMR), and biomolecular techniques in an integrated approach with innovative rhizosphere and tree ring methods, for improving our understanding and management of above- and below-ground C and nutrient cycling processes in forest ecosystems, particularly in response to GCC and local management practices as well as mitigation/adaptation strategies. The opportunities and limitations of these techniques for investigating C and nutrient cycling processes in forest ecosystems are discussed, in the context of both short- and long-term impacts on the aboveand below-ground processes. Improved understanding and knowledge of environmental fingerprints of the biogeochemical cycles embedded in tree rings can be effectively used to account for long-termforest productivity and C stocks at local, regional, and global scale in response to the future GCC and management options.

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