Results 1 to 10 of about 22,189 (116)

A century of National Forest Inventory in Norway – informing past, present, and future decisions [PDF]

open access: yesForest Ecosystems, 2020
Past In the early twentieth century, forestry was one of the most important sectors in Norway and an agitated discussion about the perceived decline of forest resources due to over-exploitation was ongoing.
Johannes Breidenbach   +4 more
doaj   +2 more sources

Forest inventory and analysis data in action: Examples from eastern national forests

open access: yesTrees, Forests and People, 2022
While many forestry practitioners and ecologists have a general understanding of the USDA Forest Service, Forest Inventory and Analysis (FIA) program and the type of data collected, most non-expert users of FIA reports and basic data are unlikely to be ...
C.M. Hoover   +6 more
doaj   +3 more sources

Raw data from the Italian National Forest Inventory are on-line and publicly available

open access: yesForest@, 2016
Raw data from the Italian National Forest Inventory are on-line and publicly available. The National Forest Service in cooperation with the Forest Monitoring and Management Research Unit of the Council for Agricultural Research and Economics (CREA ...
Borghetti M, Chirici G
doaj   +3 more sources

MONOCULAR DEPTH ESTIMATION IN FOREST ENVIRONMENTS [PDF]

open access: yesThe International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2022
Depth estimation from a single image is a challenging task, especially inside the highly structured forest environment. In this paper, we propose a supervised deep learning model for monocular depth estimation based on forest imagery.
H. Hristova   +3 more
doaj   +1 more source

A new species of Nidirana (Anura, Ranidae) from northern Guangxi, China [PDF]

open access: yesZooKeys, 2022
A new species of music frog, Nidirana guibeiensis sp. nov., is described from northern Guangxi, China. Based on two mtDNA fragments analyzed, phylogenetic trees reveal that N. guibeiensis sp. nov. is most closely related to N. leishanensis.
Wei-Cai Chen   +6 more
doaj   +3 more sources

LOW-COST MAPPING OF FOREST UNDER-STOREY VEGETATION USING SPHERICAL PHOTOGRAMMETRY [PDF]

open access: yesThe International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2022
This paper is an attempt to respond to the growing need and demand of 3D data in forestry, especially for 3D mapping. The use of terrestrial laser scanners (TLS) dominates contemporary literature for under-storey vegetation mapping as this technique ...
A. Murtiyoso   +3 more
doaj   +1 more source

Instance segmentation of individual tree crowns with YOLOv5: A comparison of approaches using the ForInstance benchmark LiDAR dataset

open access: yesISPRS Open Journal of Photogrammetry and Remote Sensing, 2023
Fine-grained information on the level of individual trees constitute key components for forest observation enabling forest management practices tackling the effects of climate change and the loss of biodiversity in forest ecosystems.
Adrian Straker   +6 more
doaj   +1 more source

Mapping forest age using National Forest Inventory, airborne laser scanning, and Sentinel-2 data

open access: yesForest Ecosystems, 2020
Background The age of forest stands is critical information for forest management and conservation, for example for growth modelling, timing of management activities and harvesting, or decisions about protection areas.
Johannes Schumacher   +3 more
doaj   +1 more source

Estimation of Forest Growing Stock Volume with UAV Laser Scanning Data: Can It Be Done without Field Data?

open access: yesRemote Sensing, 2020
Laser scanning data from unmanned aerial vehicles (UAV-LS) offer new opportunities to estimate forest growing stock volume ( V ) exclusively based on the UAV-LS data.
Stefano Puliti   +2 more
doaj   +1 more source

Using next generation sequencing of alpine plants to improve fecal metabarcoding diet analysis for Dall’s sheep

open access: yesBMC Research Notes, 2021
Objectives Dall’s sheep (Ovis dalli dalli) are important herbivores in the mountainous ecosystems of northwestern North America, and recent declines in some populations have sparked concern.
Kelly E. Williams   +5 more
doaj   +1 more source

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