Litter decomposition and nitrogen cycling in forest soils: influences of tree species and site factors

在拟议的研究中，我将在普通园林实验中测量几种常见树种下森林地面N循环过程的总速率和净速率，以确定树种间N循环的差异程度，以及对不同树种下森林地面N优势形态和N通量影响最大的凋落物或森林地面的特征。这将告诉我们，为了应对气候变化而引入一种新的树种，用于林业、开垦或辅助迁徙，将如何改变场地，特别是氮循环和可用性。我还将比较不同气候、植被和土壤条件下天然林的N循环，这将为天然林土壤N循环以及影响这些循环性质的因素提供新的见解。

In the proposed research, I will measure gross and net rates of N cycling processes in forest floors under several common tree species in common garden experiments to establish how divergent N cycling is amongst tree species, and the characteristics of the litter or forest floors that are most influential in determining the dominant N forms and N fluxes in forest floors under different tree species. This will inform us as to how introducing a new tree species for purposes of forestry, reclamation or assisted migration in response to climate change will alter the site, particularly nitrogen cycling and availability. I will also compare N cycling in natural forests that differ in climate, vegetation and soil, which will provide new insights into soil N cycling in natural forests and the factors that influence the nature of these cycles.