Results 61 to 70 of about 1,286,225 (156)

Predicting Tree-Related Microhabitats by Multisensor Close-Range Remote Sensing Structural Parameters for the Selection of Retention Elements

Remote Sensing, 2020
The retention of structural elements such as habitat trees in forests managed for timber production is essential for fulfilling the objectives of biodiversity conservation.
Julian Frey, Thomas Asbeck, Jürgen Bauhus   +2 more
doaj   +1 more source

21cm forest probes on the axion dark matter in the post-inflationary Peccei-Quinn symmetry breaking scenarios

, 2020
We study the future prospects of the 21cm forest observations on the axion-like dark matter when the spontaneous breaking of the global Peccei-Quinn (PQ) symmetry occurs after the inflation.
Ichiki, Kiyotomo, Kadota, Kenji, Shimabukuro, Hayato   +2 more
core   +1 more source

Assessment of Multiple Scattering in LiDAR Canopy Waveform

IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing
Multiple scattering of laser ray leads to distance calculation error and accumulated intensity error in LiDAR waveform. This study quantitatively assesses multiple scattering in LiDAR canopy waveform and explores its relationship with sensor ...
Xuebo Yang, Cheng Wang, Xiaohuan Xi, Zheng Niu, Dong Li, Sheng Nie, Kaiyi Bi, Ran Wang   +7 more
doaj   +1 more source

Combining spaceborne lidar from the Global Ecosystem Dynamics Investigation with local knowledge for monitoring fragmented tropical landscapes: A case study in the forest–agriculture interface of Ucayali, Peru

Ecology and Evolution
Improving our ability to monitor fragmented tropical ecosystems is a critical step in supporting the stewardship of these complex landscapes. We investigated the structural characteristics of vegetation classes in Ucayali, Peru, employing a co‐production
Savannah S. Cooley, Naiara Pinto, Milagros Becerra, Jorge Washington Vela Alvarado, Jocelyn C. Fahlen, Ovidio Rivera, G. Andrew Fricker, Augusto Rafael De Los Ríos Dantas, Naikoa Aguilar‐Amuchastegui, Yunuen Reygadas, Julie Gan, Ruth DeFries, Duncan N. L. Menge   +12 more
doaj   +1 more source

Changes of Dentario Glanduleosae-Fagetum Forest Stand in Roztocze National Park, South Eastern Poland From 1946 To 2001 [PDF]

, 2010
Roztocze Nation Park (RNP) is located in the central part of Roztocze, a hilly region in south-eastern Poland. The most important type of forest community in RNP is Dentario glandulosae-Fagetum. Potential and real vegetation, as well as forest stand maps
Tracz, Justyna
core   +2 more sources

Assessing experimental silvicultural treatments enhancing structural complexity in a central European forest – BEAST time‐series analysis based on Sentinel‐1 and Sentinel‐2

Remote Sensing in Ecology and Conservation
Assessing the dynamics of forest structure complexity is a critical task in times of global warming, biodiversity loss and increasing disturbances in order to ensure the resilience of forests.
Patrick Kacic, Ursula Gessner, Stefanie Holzwarth, Frank Thonfeld, Claudia Kuenzer   +4 more
doaj   +1 more source

Estimation of Above Ground Biomass in a Tropical Mountain Forest in Southern Ecuador Using Airborne LiDAR Data

Remote Sensing, 2018
A reliable estimation of Above Ground Biomass (AGB) in Tropical Mountain Forest (TMF) is still complicated, due to fast-changing climate and topographic conditions, which modifies the forest structure within fine scales.
Víctor González-Jaramillo, Andreas Fries, Jörg Zeilinger, Jürgen Homeier, Jhoana Paladines-Benitez, Jörg Bendix   +5 more
doaj   +1 more source

Can we set a global threshold age to define mature forests? [PDF]

, 2015
Globally, mature forests appear to be increasing in biomass density (BD). There is disagreement whether these increases are the result of increases in atmospheric CO2 concentrations or a legacy effect of previous land-use. Recently, it was suggested that
Anderson, Anderson-Teixeira, Baker, Barton, Bondarev, Bontemps, Brienen, Brncic, Burnham, Burnham, CBD, Chang, Chazdon, Chazdon, China’s Forest Editorial Committee, Coomes, Coomes, Dixon, Feng, Foley, Ghazoul, Guariguata, Hijmans, Hudiburg, Johnson, Kajimoto, Keeton, Keith, Kent, Lewis, Liu, Liu, Luo, Luyssaert, Ma, Martin, Martin, Muller-Landau, Nakagawa, Norden, Pan, Pan, Pinheiro, R Development Core Team, Schielzeth, Stegen, Tan, Tuck, Valencia, Wright, Zhou, Zhu   +51 more
core   +4 more sources

Estimating Ladder Fuels: A New Approach Combining Field Photography with LiDAR

Remote Sensing, 2016
Forests historically associated with frequent fire have changed dramatically due to fire suppression and past harvesting over the last century. The buildup of ladder fuels, which carry fire from the surface of the forest floor to tree crowns, is one of ...
Heather A. Kramer, Brandon M. Collins, Frank K. Lake, Marek K. Jakubowski, Scott L. Stephens, Maggi Kelly   +5 more
doaj   +1 more source

Estimating Tree Volume Distributions in Subtropical Forests Using Airborne LiDAR Data

Remote Sensing, 2019
Accurate and reliable information on tree volume distributions, which describe tree frequencies in volume classes, plays a key role in guiding timber harvest, managing carbon budgets, and supplying ecosystem services. Airborne Light Detection and Ranging
Lin Cao, Zhengnan Zhang, Ting Yun, Guibin Wang, Honghua Ruan, Guanghui She   +5 more
doaj   +1 more source