Results 121 to 130 of about 96,135 (314)

Drivers of Advances in Mechanized Timber Harvesting – a Selective Review of Technological Innovation

Croatian Journal of Forest Engineering, 2017
Timber harvesting operations vary greatly around the world, as do the adaptations of technology to the complex, locally variable conditions. Similarly, technological innovations occur as a response to a large number of different situations.
Pedro La Hera, Carola Häggström, Ola Lindroos   +2 more
doaj  

Wall‐to‐wall Amazon forest height mapping with Planet NICFI, Aerial LiDAR, and a U‐Net regression model

Remote Sensing in Ecology and Conservation, EarlyView.
Tree canopy height is a key indicator of forest biomass and structure, yet accurate mapping across the Amazon remains challenging. Here, we generated a canopy height map of the Amazon forest at ~4.8 m resolution using Planet NICFI imagery and a deep learning U‐Net model trained with airborne LiDAR data.
Fabien H. Wagner, Ricardo Dalagnol, Griffin Carter, Mayumi C. M. Hirye, Shivraj Gill, Le Bienfaiteur Sagang Takougoum, Samuel Favrichon, Michael Keller, Jean P. H. B. Ometto, Lorena Alves, Cynthia Creze, Stephanie P. George‐Chacon, Shuang Li, Zhihua Liu, Adugna Mullissa, Yan Yang, Erone G. Santos, Sarah R. Worden, Martin Brandt, Philippe Ciais, Stephen C. Hagen, Sassan Saatchi   +21 more
wiley   +1 more source

Maple Syrup Value Systems and Value Chains - Considering Aboriginal and Non-Aboriginal Perspectives [PDF]

, 2014
Harvested from both intensive sugar maple stands and diverse mixed forest ecosystems across Ontario, maple syrup is an important rural and Aboriginal non-timber forest product that contributes to social, economic and environmental sustainability.
Chrétien, Annette, Morin, Grant, Murphy, Brenda   +2 more
core   +1 more source

The Hidden Costs of Coffee Production in the Eastern African Value Chains

Sustainable Development, EarlyView.
ABSTRACT There is increasing recognition that significant hidden costs associated with agrifood systems are not reflected in market prices. Coffee is among the three most traded agricultural commodities in the world and supports the livelihoods of more than 30 million smallholder households.
Annet Adong, Lukas Kornher, Bezawit Beyene Chichaibelu, Aslihan Arslan   +3 more
wiley   +1 more source

Ongoing study on the integration of biodiversity concerns in management of forest concessions in Central Africa [PDF]

, 2008
Central Africa is home to the world's second largest contiguous tropical rainforest, after Amazon. Depending on countries in the sub-region, between 10% to 15% (Nasi, Cassagne, Billand, 2006) of the forests' surface area is occupied by protected areas ...
Billand, Alain, Fournier, Jérôme, Nguinguiri, Jean Claude, Souvannavong, Oudara   +3 more
core  

Achieving Sustainable Development Goals Through Social Life Cycle Assessment: A Case Study of Portuguese Forest Wood Supply Chains

Sustainable Development, EarlyView.
ABSTRACT Social considerations are often overlooked in efforts to achieve sustainable development, despite being critical for building equitable and resilient global value chains. This study addresses this gap by applying a social life cycle assessment to three key Portuguese forest wood supply chains—uncoated woodfree paper, natural cork stoppers, and
Andreia Santos, Madalena Veloso, Ana Barbosa‐Póvoa, Ana Carvalho   +3 more
wiley   +1 more source

Optimal Timber Rotation on Multiple Stands with an Asymmetric Externality [PDF]

Replaced with revised version of paper 07/28/05.forest economics, multiple stands, non-timber goods, flood risk, spatial externality, additivity properties, Resource /Energy Economics and Policy, Q23, Q57,
Uchida, Emi
core   +1 more source

Monitoring GPS‐collared moose by ground versus drone approaches: efficiency and disturbance effects

Wildlife Biology, EarlyView.
Efficient wildlife management requires precise monitoring methods, for example to estimate population density, reproductive success, and survival. Here, we compared the efficiency of drone (equipped with a RGB camera) and ground approaches to detect and observe GPS‐collared female moose Alces alces and their calves. We also quantified how drone (n = 42)
Martin Mayer, Erlend Furuhovde, Kristoffer Nordli, Giorgia Myriam Ausilio, Petter Wabakken, Ane Eriksen, Alina L. Evans, Karen Marie Mathisen, Barbara Zimmermann   +8 more
wiley   +1 more source

Forest views: Northeast Oregon survey looks at community and environment [PDF]

, 2012
This brief reports on a survey conducted in fall 2011 as one component of the ongoing Communities and Forests in Oregon (CAFOR) project. The CAFOR project focuses on the people and landscapes of three counties in northeast Oregon (Baker, Union, and ...
Campbell, Michael, Congalton, Russell G., Ducey, Mark J., Hamilton, Lawrence C., Hartter, Joel N., Maynard, Daniel, Staunton, Michael, Stevens, Forrest   +7 more
core   +1 more source

A comparison of thermal drones and camera trap population estimates for Sitka black‐tailed deer in Alaska

Wildlife Biology, EarlyView.
One of the most difficult challenges for wildlife managers is reliably estimating wildlife populations. Camera traps combined with spatial capture–recapture (SCR) models are a popular tool for population estimation. They have limitations, however, including long data processing times.
Shannon P. Finnegan, Amael Hinojo, Sarah Monod, William A. Wall, Peter Olsen, Maximilian L. Allen   +5 more
wiley   +1 more source