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Improving leaf area index (LAI) estimation by correcting for clumping and woody effects using terrestrial laser scanning
2018
Agricultural and Forest Meteorology
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However, in the DHP retrieved LAI, there is always contribution of woody components due to the difficulty in distinguishing woody and foliar materials. ...
Terrestrial laser scanning (TLS) provides a 3-dimensional view of the forest canopy, which we used in this study to improve LAI estimation by directly retrieving leaf angle distribution, and subsequently ...
We thank the Bavarian Forest National Park for supporting the data collection. We acknowledge the support of the "Data Pool Forestry" data-sharing initiative of the Bavarian Forest National Park. ...
doi:10.1016/j.agrformet.2018.08.026
fatcat:ijqydhugkbgm5agrqfstzxocaq
A voxel matching method for effective leaf area index estimation in temperate deciduous forests from leaf-on and leaf-off airborne LiDAR data
2020
Remote Sensing of Environment
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The airborne LiDAR has emerged as an effective tool for mapping plant area index (PAI) in a landscape consisting of both woody and leaf materials. ...
We applied a voxel matching algorithm to estimate eLAI of deciduous forests using simulated and field LiDAR data under leaf-on and leaf-off conditions. ...
We thank the "Data Pool Forestry" data-sharing initiative of the Bavarian Forest National Park. ...
doi:10.1016/j.rse.2020.111696
fatcat:y6w2sozsu5cc3bn4y7ahxsuhea
Understanding Forest Health with Remote Sensing-Part II—A Review of Approaches and Data Models
2017
Remote Sensing
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Stress in forest ecosystems (FES) occurs as a result of land-use intensification, disturbances, resource limitations or unsustainable management, causing changes in forest health (FH) at various scales ...
While direct stressors are a result of forest utilization or land use changes, indirect stress is caused by drivers such as climate change, air pollution and globalization, which in turn may bring about ...
Ministry of Education and Research. ...
doi:10.3390/rs9020129
fatcat:zxyfarzipbaerejj4a3kmp3qca
Forest disturbance and recovery: A general review in the context of spaceborne remote sensing of impacts on aboveground biomass and canopy structure
2009
Journal of Geophysical Research
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Shugart, and G. C. Hurtt (2009), Forest disturbance and recovery: A general review in the context of spaceborne remote sensing of impacts on aboveground biomass and canopy structure, ...
., $1 m passive optical/NIR, or small footprint lidar) can map crown geometry and gaps, but has rarely been systematically applied to study small-scale disturbance and natural mortality gap dynamics over ...
St-Onge et al. [2008] used stereo Ikonos images and airborne lidar data to generate surface elevation models, and converted these to forest height and forest biomass maps for a mixed boreal forest in ...
doi:10.1029/2008jg000911
fatcat:uzyww4q6cvh3jcuvql4a47uxri
Field characterization of olive (Olea europaea L.) tree crown architecture using terrestrial laser scanning data
2011
Agricultural and Forest Meteorology
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Since the introduction of Terrestrial Laser Scanning (TLS) instruments, there now exists a means of rapidly digitizing intricate structural details of vegetation canopies using Light Detection and Ranging ...
(LiDAR) technology. ...
In addition, this work was made possible with the financial support of the Natural Sciences and Engineering Research Council (NSERC) and the Canadian Foundation of Innovation (CFI). ...
doi:10.1016/j.agrformet.2010.10.005
fatcat:fm56u2oqyjh5ze6bvqdahwbl3i
Close-range laser scanning in forests: towards physically based semantics across scales
2018
Interface Focus
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One contribution of 12 to a theme issue 'The terrestrial laser scanning revolution in forest ecology'. ...
Using such a combined forward and physically based approach will make methods robust and transferable. ...
Laser scanning point cloud as obtained by multi-view terrestrial laser scanning in a mature temperate beech forest in leaf-off conditions. ...
doi:10.1098/rsfs.2017.0046
pmid:29503725
fatcat:durvze7zcze33jotfspy4xx4ka
Simulating Imaging Spectroscopy in Tropical Forest with 3D Radiative Transfer Modeling
2021
Remote Sensing
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tropical forest, and to reproduce spectral dissimilarity within and among species, as well as species discrimination based on spectral information. ...
Optical remote sensing can contribute to biodiversity monitoring and species composition mapping in tropical forests. ...
We also acknowledge Jean-Philippe Gastellu-Etchegorry, Nicolas Lauret and the DART Team for their advice and support in using the DART model. Thanks to A. Laybros, M. Aubry-Kientz, R. Dutrieux and C. ...
doi:10.3390/rs13112120
fatcat:3is2mw5odnffzncy5uffjsoocu
Remote Sensing Technologies for Assessing Climate-Smart Criteria in Mountain Forests
[chapter]
2021
Managing Forest Ecosystems
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Forest cover, growing stock, abiotic, biotic, and human-induced forest damage, and tree composition indicators can be readily assessed by using established remote sensing techniques. ...
A set of indicators to assess "the smartness" of forests has been previously identified by combining indicators for sustainable forest management with the ecosystem services. ...
LiDAR data can also enhance the capability to discriminate forest areas in satellite images, for example, QuickBird imagery (Hilker et al. 2008) and Sentinel-2 images (Fragoso-Campón et al. 2020) , ...
doi:10.1007/978-3-030-80767-2_11
fatcat:5gzjgydxsfd4zgxuagkbi4nirq
Linking Foliar Traits to Belowground Processes
[chapter]
2020
Remote Sensing of Plant Biodiversity
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Here, we focus on how the productivity and composition of foliar traits in plant communities influence belowground processes such as decomposition and nutrient cycling. ...
, functional, and phylogenetic diversity (Wang et al. 2019; Schweiger et al. 2018; Gholizadeh et al. 2019) creates new opportunities to observe terrestrial ecosystems. ...
Using two case studies, one in a clonal aspen (Populus tremuloides) forest system and one in a manipulated grassland biodiversity experiment, we demonstrate that plant foliar traits and vegetation cover ...
doi:10.1007/978-3-030-33157-3_8
fatcat:7xpxuc56sfdlfcpci462ljfy2a
Characterizing potential wildland fire fuel in live vegetation in the Mediterranean region
2017
Annals of Forest Science
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Standardization of methodologies and a better understanding of plant attributes and phenological status can improve models for fire management. ...
& Key message Fuel moisture and chemical content affecting live plant flammability can be measured through laboratory and field techniques, or remotely assessed. ...
Acknowledgements This paper has been produced under the framework of the project MedWildFireLab ("Global Change Impacts on Wildland Fire Behaviour and Uses in Mediterranean Forest Ecosystems, towards a ...
doi:10.1007/s13595-016-0599-5
fatcat:f5llignlsjc73cdzrcuhwpscum
Critical Remote Sensing Contributions to Spatial Wildlife Ecological Knowledge and Management
[chapter]
2010
Spatial Complexity, Informatics, and Wildlife Conservation
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Remote sensing has established a key role in modern wildlife ecology, but the data types and methods are both varied and complex, and the potential for misuse by the uninformed is high. ...
Users of remote sensing technology seeking to link information needs with remote sensing strategy must balance knowledge of data and processing techniques with a clear understanding of the nature of the ...
many partners and colleagues in the Foothills Model Forest Grizzly Bear Research Program. ...
doi:10.1007/978-4-431-87771-4_11
fatcat:22ajx35kmbgvdidwwaxm6osudi
Hyperspectral Remote Sensing
[chapter]
2013
Airborne Measurements for Environmental Research
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terrestrial and artificial/cultivated and managed and semi-natural natural land covers ( Figure 5.4a-d) . ...
Anomalous pixels are typically rare but sufficiently distinct, spectrally and/or spatially. Examples include a vehicle in a natural environment, a rock in a field or a wooden hut in a forest. ...
It is a passive scanning and imaging instrument consisting of 4 spectrometers that simultaneously acquire radiation in the VNIR, SWIR and thermal infrared (TIR) ( Table A .1). ...
doi:10.1002/9783527653218.ch8
fatcat:rimn5senmnaf5k6vpytbokahoi
A portable LIDAR system for rapid determination of forest canopy structure
2004
Journal of Applied Ecology
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. & Chen, J. (2002) Disturbances and structural development of natural forest ecosystems with silvicultural implications, using Douglas-fir forests as an example. ...
R. (2002) ‘Free-air' ozone canopy fumigation in an old-growth mixed forest: concept and observations in beech. Phyton, 42. 105-119. ...
doi:10.1111/j.0021-8901.2004.00925.x
fatcat:raaw3p6norevxhqtt7vrxb6lae
Classification of Handheld Laser Scanning Tree Point Cloud Based on Different KNN Algorithms and Random Forest Algorithm
2021
Forests
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On this basis, the random forest classifier was used to calculate feature importance and perform dataset training. ...
Handheld mobile laser scanning (HMLS) can quickly acquire point cloud data, and has the potential to conduct forest inventory at the plot scale. ...
., Ltd. for support in data collection.
Conflicts of Interest: The authors declare no conflict of interest. ...
doi:10.3390/f12030292
doaj:e2e09acb86944c048f20666ddfb65633
fatcat:bo6r5mpcifbaxp3i33j4ucu7da
State of Science Assessment of Remote Sensing of Great Lakes Coastal Wetlands: Responding to an Operational Requirement
2020
Remote Sensing
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The mapping requirements included a minimum mapping unit (MMU) of either 2 × 2 m or 4 × 4 m, a digital elevation model (DEM) accuracy in x and y of 2 m, a "z" value or vertical accuracy of 1–5 cm, and ...
Light Detection and Ranging (LiDAR) with either a multispectral or a hyperspectral sensor, (2) colour-infrared aerial photography (airplane) with (optimum) 8 cm resolution, (3) colour-infrared unmanned ...
Author Contributions: Funding for this project was acquired by J.D. and J.P.; L.W. and R.A.R. conducted the personal communication with wetland experts, the literature review, and wrote the first draft ...
doi:10.3390/rs12183024
doaj:123e38861e26499b80e9514caddb66fc
fatcat:qmahgll73zhs5bay6qb3p6a7m4
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