Results 31 to 40 of about 254,911 (299)

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

open access: yesInternational 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

Pilot Study on Harmonising National Forest Inventories in Europe [PDF]

open access: yes, 2010
The objectives of the 'Pilot study on harmonising National Forest Inventories in Europe' were demonstrating and implementing in real cases the harmonization of forest information using National Forest Inventory (NFI) data. The pilot study is thus a first
CAMIA Andrea   +12 more
core   +1 more source

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

open access: yesJournal 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

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   +1 more source

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

open access: yesForest 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   +4 more
doaj   +1 more source

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

open access: yesSensors, 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   +6 more
doaj   +1 more source

Climate change could negate positive tree diversity effects on forest productivity: a study across five climate types in Spain and Canada [PDF]

open access: yes, 2017
A positive relationship between tree diversity and forest productivity is reported for many forested biomes of the world. However, whether tree diversity is able to increase the stability of forest growth to changes in climate is still an open question ...
Coll Mir, Lluís   +4 more
core   +1 more source

Impact of the Spruce Budworm (Lepidoptera: Tortricidae) on the Ottawa and Hiawatha National Forests, 1978-1980 [PDF]

open access: yes, 2017
The Michigan Impact Plot System was established during 1978 and 1979 to obtain a data base for quantifying the impact of the spruce budworm in the Ottawa and Hiawatha National Forests.
Lynch, Ann M   +2 more
core   +2 more sources

The Finnish National Forest Inventory [PDF]

open access: yes, 2006
The National Forest Inventory (NFI) of Finland has produced large-area forest resource infor- mation since the beginning of 1920s (Ilvessalo 1927). When the 10 th inventory (NFI10) started in 2004, the design was changed and the rotation shortened to 5 years. Measurements are done in the entire country each year through measuring one-fifth of the plots.
openaire   +1 more source

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