Long-Term Impacts of the Hemlock Woolly Adelgid on Forest Carbon at Harvard Forest 2008-2011

This study used a comparative approach to study potential changes in C fluxes and storage and N cycling associated with Hemlock Wooly Adelgid induced hemlock decline and replacement. The stands include primary and secondary growth hemlock forests (230 and 132 years old, respectively), recently disturbed stands (5 and 18 years old) that now have rapidly growing black birch saplings, and a mature black birch stand of age similar to the second-growth hemlock stand.

本研究采用比较研究方法，探究与铁杉球蚜（Hemlock Wooly Adelgid）诱导的铁杉林衰退及植被更替相关的碳通量（C fluxes）、碳储量与氮循环（N cycling）的潜在变化。所纳入的林分包括林龄分别为230年与132年的原始铁杉林与次生铁杉林、林龄5年与18年的近期受扰林分（当前林内已生长出长势旺盛的黑桦幼树），以及林龄与该次生铁杉林分相近的成熟黑桦林分。