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    Author(s): Ronald E. McRoberts; Terje Gobakken; Erik Næsset
    Date: 2012
    Source: Remote Sensing of Environment. 125: 157-166.
    Publication Series: Scientific Journal (JRNL)
    Station: Northern Research Station
    PDF: Download Publication  (730.27 KB)


    National forest inventories report estimates of parameters related to forest area and growing stock volume for geographic areas ranging in size from municipalities to entire countries. Landsat imagery has been shown to be a source of auxiliary information that can be used with stratified estimation to increase the precision of estimates, although the increase is greater for estimates of forest area than for estimates of growing stock volume. The objective of the study was to assess the utility of lidar-based stratifications for increasing the precision of mean proportion forest area and mean growing stock volume per unit area. Stratifications based on nonlinear logistic regression model predictions of volume obtained from lidar data reduced variances of mean growing stock volume estimates by factors as great as 3.2 and variances of mean proportion forest area estimates by factors as great as 1.5.

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    McRoberts, Ronald E.; Gobakken, Terje; Næsset, Erik. 2012. Post-stratified estimation of forest area and growing stock volume using lidar-based stratifications. Remote Sensing of Environment. 125: 157-166.


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    forest inventory, non-linear regression model, k-nearest neighbor

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