Results 41 to 50 of about 171,252 (296)

Comparison of Canopy Cover and Leaf Area Index Estimation from Airborne LiDAR and Digital Aerial Photogrammetry in Tropical Forests

Applied Sciences, 2022
Digital aerial photogrammetry (DAP) has emerged as an alternative to airborne laser scanning (ALS) for forest inventory applications, as it offers a low-cost and flexible three-dimensional (3D) point cloud.
Chenyun Li, Yanfeng Zheng, Xinjie Zhang, Fayun Wu, Linyuan Li, Jingyi Jiang   +5 more
doaj   +1 more source

The establishment of national park system: A new milestone for the field of nature conservation in China

International Journal of Geoheritage and Parks, 2020
National park is one of the most significant natural protected areas. It takes ecological environment, natural resources protection and moderate tourism development as the basic strategy, and realizes effective protection in a large range through ...
Xiaoping Tang
doaj   +1 more source

Identifying Tree-Related Microhabitats in TLS Point Clouds Using Machine Learning

Remote Sensing, 2018
Tree-related microhabitats (TreMs) play an important role in maintaining forest biodiversity and have recently received more attention in ecosystem conservation, forest management and research.
Nataliia Rehush, Meinrad Abegg, Lars T. Waser, Urs-Beat Brändli   +3 more
doaj   +1 more source

The exploration of China's National Park System Pilot Project: Taking Northeast China Tiger and Leopard National Park System Pilot Area as an example

International Journal of Geoheritage and Parks, 2020
In December 2016, Northeast China Tiger and Leopard National Park started the pilot work. It is the only pilot area that is directly managed by the central government. Northeast China Tiger and Leopard National Park System Pilot Area undertakes two major
Tianyu Song
doaj   +1 more source

Some methodological aspects of the National Forest Inventory and Monitoring in Slovakia

Journal of Forest Science, 2008
The work presents the conceptual information about the National Forest Inventory and Monitoring in Slovakia. It introduces some methodological approaches to the field data collection (determination of tree heights by two-phase method, regression formulas
Š. Šmelko, J. Merganič
doaj   +1 more source

Romanian legal management rules limit wood production in Norway spruce and beech forests

Forest Ecosystems, 2016
Background The quantitative impact of forest management on forests’ wood resource was evaluated for Picea and Fagus mixed forests. The effects on the productivity of tendering operations, thinnings and rotation length have seldom been directly ...
Olivier Bouriaud, Gheorghe Marin, Laura Bouriaud, Dominik Hessenmöller, Ernst-Detlef Schulze   +4 more
doaj   +1 more source

The Laser Vegetation Detecting Sensor: A Full Waveform, Large-Footprint, Airborne Laser Altimeter for Monitoring Forest Resources

Sensors, 2019
The use of satellite-borne large-footprint LiDAR (light detection and ranging) systems allows for the acquisition of forest monitoring data. This paper mainly describes the design, use, operating principles, installation and data properties of the new ...
Yang Hu, Fayun Wu, Zhongqiu Sun, Andrew Lister, Xianlian Gao, Weitao Li, Daoli Peng   +6 more
doaj   +1 more source

A new approach for Spatializing the CAnadian National Forest Inventory (SCANFI) using Landsat dense time series

Canadian Journal of Forest Research
Accurate and fine-scale forest data are essential to improve natural resource management, particularly in the face of climate change. Here, we present SCANFI, the Spatialized CAnadian National Forest Inventory, which provides coherent, 30m resolution ...
L. Guindon, Francis Manka, David L. P. Correia, P. Villemaire, Byron Smiley, Pierre Bernier, Sylvie Gauthier, André Beaudoin, J. Boucher, Yan Boulanger   +9 more
semanticscholar   +1 more source

Predicting stand age in managed forests using National Forest Inventory field data and airborne laser scanning

Forest Ecosystems, 2020
Background The aim of this study was to construct a nationwide stand age model by using National Forest Inventory (NFI) data and nationwide airborne laser scanning (ALS) data. In plantation forestry, age is usually known.
M. Maltamo, Hermanni Kinnunen, A. Kangas, L. Korhonen   +3 more
semanticscholar   +1 more source

Harmonized Classification of Forest Types in the Iberian Peninsula Based on National Forest Inventories [PDF]

Forests, 2020
National Forest Inventories (NFIs) collect and provide a large amount of information regarding the forest volume, carbon stocks, vitality, biodiversity, non-wood forest products and their changes. Forest stands variables data are paramount to understanding their composition, especially on those related with understory characteristics and the coverage ...
Leónia Nunes, Mauro Moreno, Iciar Alberdi, Juan Gabriel Álvarez-González, Paulo Godinho-Ferreira, Stefano Mazzoleni, Francisco Castro Rego   +6 more
openaire   +3 more sources