Using imaging spectroscopy to map top-of-canopy LMA and lidar to model vertical gradients of transmittance, we developed a method to map three-dimensional patterns in LMA in temperate broadleaf forests. Partial least squares regression (PLSR) was used to estimate top-of-canopy LMA (R: 0.57, ...
In order to detect the distribution change of evergreen broad-leaved trees (EBTs) in a old-growth forest on the transitional zone of cool-temperate and warm-temperate zones, we used the ortho-photo data conversed from the aerial photos. Comparing the crown map of EBTs in the 1-ha verifi...
which have the potential to affect saproxylic beetle diversity: the volume of broadleaf forest, the area of mature (100 + years) forest, and the area of early-successional, post-clearcutting habitat. In addition to these three, I use the area of forest designated for conservation as...
Contour map of the 25 ha Mulun forest plot. The numbers in the map represent elevation (m). The map was created using R3.3.2 software31 (https://www.r-project.org/). Full size image Data collection The plot was divided into a grid composed of 625 20 × 20 m cells, and...
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aNankun Shan Mountain Nature Reserve is located in Central Guangdong and 80 miles from Guangzhou (see location map). The reserve was established in 1984, and its major objective is to protect the subtropical evergreen broadleaf forest. The nature reserve lies within the boundaries of the Nankun...
Using imaging spectroscopy to map top-of-canopy LMA and lidar to model vertical gradients of transmittance, we developed a method to map three-dimensional patterns in LMA in temperate broadleaf forests. Partial least squares regression (PLSR) was used to estimate top-of-canopy LMA (R-2: 0.57...
digital aerial photogrammetry was used to characterize forest canopy structure in a mixed conifer鈥揵roadleaf forest. We used aerial imagery acquired with a fixed-wing unmanned aerial vehicle (UAV) platform to produce RS metrics that could be used to classify and map forest structure types at ...
Using data obtained by UAV DJI 4, and in the free software environments OpenDroneMap and QGIS, we calculated tree height, crown area, number of trees and multispectral indices. Digital photogrammetric procedures, such as the ForestTools, Structure from Motion and Multi-View Stereo algo...
Forest type mapHigh-precision forest inventoryImage-based point cloudsMixed and heterogeneously structured forestOrdinary least squares regression modelsMerchantable timber volumeManaging forests for ecosystem services and biodiversity requires accurate and spatially explicit forest inventory data. A major objective...