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New publication examines effects of bark beetles and drought on forests of Lake Tahoe Basin

posted Jun 13, 2016, 1:26 PM by Alec Kretchun   [ updated Jun 17, 2016, 8:09 AM by Robert Scheller ]
A new publication out of the DE&L lab, along with collaborators at the US Forest Service, University of New Mexico, and University of Arizona, examines how forest productivity responds to bark beetles outbreaks and moisture availability in the mixed conifer forests of the Lake Tahoe Basin. Combining insights from forest landscape models and tree rings collected from dozens of sites throughout the basin, the authors found that forest productivity in the Basin has a nonlinear relationship with moisture stress, and that growth patterns seen in the tree rings are likely best explained by a combination of moderate moisture sensitivity and mortality caused by bark beetles. This is the first time data derived from increment cores has been used in conjunction with LANDIS-II, and shows great promise as a way to leverage the strengths of individual tree field data with landscape-scale forest modeling. The new publication can currently be seen on the front page of the Canadian Journal of Forest Research, under the 'Just In' section. Thanks to all collaborators for the great effort on this one!

Citation: Kretchun, AM, Loudermilk, EL, Scheller, RM, Hurteau, MD, Belmecheri, SM. 2016. Climate and bark beetle effects on forest productivity: linking dendroecology with forest landscape modeling. Canadian Journal of Forest Research. 10.1139/cjfr-2016-0103

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Keywords: ANPP; net ecosystem production; increment cores; forest simulation model; LANDIS-II