Estimates of Down Woody Materials in Eastern US Forests

Airborne laser scanning-based prediction of coarse woody debris volumes in a conservation area

“…Goodness of fits obtained for the predicted CWD volumes. earlier CWD predictions obtained using field variables, the R 2 being 0.19 and 0.10 for the models proposed by Chojnacky et al (2004) and Chojnacky and Heath (2002), respectively.…”

“…Chojnacky and Heath (2002) observed that the basal area of standing dead trees could be effectively used as a predictor for the downed dead wood volume. The accuracy of the models devised for predicting the www.elsevier.com/locate/foreco Available online at www.sciencedirect.com Forest Ecology and Management 255 (2008) [3288][3289][3290][3291][3292][3293][3294][3295][3296] CWD volume has nevertheless been rather poor (see Chojnacky and Heath, 2002;Chojnacky et al, 2004).…”

“…Modelling techniques for the utilisation of inventory data have also been applied to the determination of the amount of CWD. and Ranius and Kindvall (2004) simulated the amount of dead wood from the growth of living trees, tree mortality rate and the CWD decomposition rate, while Chojnacky et al (2004) used also climatic variables as predictors of CWD quantities. Chojnacky and Heath (2002) observed that the basal area of standing dead trees could be effectively used as a predictor for the downed dead wood volume.…”

Carbon pools and productivity in a 1-km2 heterogeneous forest and peatland mosaic in Minnesota, USA

“…To estimate CWD, we used a line-intercept sampling approach that previously has been used to describe coarse woody debris in FIA plots (Chojnacky et al, 2004). On each subplot, three 7.3-m transects (total transect length, 21.9 m) were surveyed and all intersections with woody pieces >7.6 cm diameter were recorded.…”

The Demise of Fire and “Mesophication” of Forests in the Eastern United States

“…Downed woody debris (DWD) of various sizes and structures comprises an appreciable amount of the forest floor (Chojnacky et al 2004). Thus, as with leaf litter, compositional changes that affect the quality and quantity of DWD are equally important.…”