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Airborne LiDAR Detects Selectively Logged Tropical Forest Even in an Advanced Stage of Recovery
2015
Remote Sensing
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We use LiDAR data from ca. 16 km 2 of forest in Sierra Leone, West Africa, to discriminate areas of old-growth from areas recovering from selective logging for 23 years. ...
to 5.6% in unlogged area); and greater numbers of gaps penetrating to the forest floor (162 gaps at 2 m height in logged blocks, and 101 in an unlogged block). ...
Mansary for their assistance in organizing the LiDAR flight over the forest, and staff of Gola Rainforest National Park for assistance during fieldwork. ...
doi:10.3390/rs70708348
fatcat:65y24euhgfbq5cpwuk3bmxspsm
Impacts of Degradation on Water, Energy, and Carbon Cycling of the Amazon Tropical Forests
2020
Journal of Geophysical Research - Biogeosciences
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Selective logging, fragmentation, and understory fires directly degrade forest structure and composition. ...
We used forest structural information retrieved from airborne lidar samples (13,500 ha) and calibrated with 817 inventory plots (0.25 ha) across precipitation and degradation gradients in the eastern Amazon ...
Acknowledgments The research was carried out at the Jet Propulsion Laboratory, California Institute of Technology, under a contract with the National Aeronautics and Space Administration (80NM0018D004) ...
doi:10.1029/2020jg005677
pmid:32999796
pmcid:PMC7507752
fatcat:wy5zxiebiffova5f3llcsodxsq
A Conceptual Model for Detecting Small-Scale Forest Disturbances Based on Ecosystem Morphological Traits
2022
Remote Sensing
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Current LiDAR-based methods for detecting forest change use a host of statistically selected variables which typically lack a biological link with the characteristics of the ecosystem. ...
This sensitivity to the change in forest dynamics was the criterion by which LiDAR metrics were selected as proxies for each EMT. ...
LiDAR data were acquired by the Sustainable Landscapes Brazil project supported by the Brazilian Agricultural Research Corporation (EMBRAPA), the US Forest Service, USAID, and the US Department of State ...
doi:10.3390/rs14040933
fatcat:nfu2mpig3vavhj6lkzlkcasgkq
Current remote sensing approaches to monitoring forest degradation in support of countries measurement, reporting and verification (MRV) systems for REDD+
2017
Carbon Balance and Management
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Interferometric SAR and LiDAR have found new application in linking forest structure change to degradation in tropical forests. ...
There has been progress in the capacity to discriminate forest age and growth stage using data fusion methods and LiDAR height metrics. ...
Publisher's Note Springer Nature remains neutral with regard to jurisdictional claims in published maps and institutional affiliations. ...
doi:10.1186/s13021-017-0078-9
pmid:28417324
pmcid:PMC5393981
fatcat:nyb3rjngp5a4plfs47r75w5y3u
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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Hurtt (2009), Forest disturbance and recovery: A general review in the context of spaceborne remote sensing of impacts on aboveground biomass and canopy structure, ...
Reducing uncertainty in disturbance and recovery impacts on global forest carbon balance requires quantification of (1) predisturbance forest biomass; (2) disturbance impact on standing biomass and its ...
We thank two anonymous reviewers for helpful comments on an earlier draft. We acknowledge support from NASA Interdisciplinary Science grant NNX07AH32G (S. ...
doi:10.1029/2008jg000911
fatcat:uzyww4q6cvh3jcuvql4a47uxri
Recovery of logged forest fragments in a human-modified tropical landscape during the 2015-16 El Niño
2021
Nature Communications
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Here, we use repeat airborne LiDAR surveys spanning the hot and dry 2015-16 El Niño Southern Oscillation event to measure canopy height growth across 3,300 ha of regenerating tropical forests spanning ...
The past 40 years in Southeast Asia have seen about 50% of lowland rainforests converted to oil palm and other plantations, and much of the remaining forest heavily logged. ...
Acknowledgements We thank Glen Reynolds for suggestions in the preliminary phase of the manuscript, Matthew Struebig for helpful comments and Sacha Khoury for help with image processing and analysis. ...
doi:10.1038/s41467-020-20811-y
pmid:33750781
fatcat:t3jbe2zlzvdypcfiaf3ymevn7u
Advances in Remote Sensing of Post-Fire Vegetation Recovery Monitoring - A Review
[chapter]
2012
Remote Sensing of Biomass - Principles and Applications
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The review was also supported by the Lebanese National Council for Scientific Research (CNRS) and part of the work was carried out at the Jet Propulsion Laboratory, California Institute of Technology, ...
Acknowledgments This publication was financially supported by the Aristotle University of Thessaloniki (AUTh) Research Committee. ...
A steady-state or old-growth stage: the continuation of a series of successional stages beginning in the previous stage and which may culminate in an old-growth climax forest (Oliver 1981; Oliver and ...
doi:10.5772/20571
fatcat:63jbdemtsrgvbkqx5hplx6mnmm
Comparison of Statistical Modelling Approaches for Estimating Tropical Forest Aboveground Biomass Stock and Reporting their Changes in Low-intensity Logging Areas using Multi-temporal LiDAR Data
2020
Remote Sensing
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Accurately quantifying forest aboveground biomass (AGB) is one of the most significant challenges in remote sensing, and is critical for understanding global carbon sequestration [...] ...
Programs, for support and technical assistance in acquiring the airborne LiDAR and forest inventory datasets used in this study. ...
We thank USAID, the US Department of State, the Brazilian Corporation for Agricultural Research (EMBRAPA), and the Sustainable Landscapes Brazil Project of the US Forest Service Office of International ...
doi:10.3390/rs12091498
fatcat:qkdj3ez5fjeo3bqcamit6zq4gq
How Can Remote Sensing Help Monitor Tropical Moist Forest Degradation?—A Systematic Review
2020
Remote Sensing
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In the context of the climate and biodiversity crisis facing our planet, tropical forests playing a key role in global carbon flux and containing over half of Earth's species are important to preserve. ...
Tropical moist forest degradation is not extensively studied especially in the Congo basin and in southeast Asia. ...
Acknowledgments: We thank Clément Dupuis for the proofreading in English and Alix Gancille for the drawing of the diagrams. ...
doi:10.3390/rs12071087
fatcat:tprwfqvbxbf5xie5n7caevgjfu
Toward an integrated monitoring framework to assess the effects of tropical forest degradation and recovery on carbon stocks and biodiversity
2015
Global Change Biology
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We reviewed the main challenges to estimate changes in carbon stocks and biodiversity due to degradation and recovery of tropical forests, focusing on three main areas: (1) the combination of field surveys ...
Tropical forests harbor a significant portion of global biodiversity and are a critical component of the climate system. ...
Acknowledgements This document is based on the discussions held during the Workshop on Monitoring Forest Dynamics: carbon stocks, greenhouse gas fluxes, and biodiversity, in Brasilia, Brazil (September ...
doi:10.1111/gcb.13087
pmid:26390852
fatcat:oifv4amdifdnvfxea4a4ob6hc4
Remote Sensing of Aboveground Biomass in Tropical Secondary Forests: A Review
2014
International Journal of Forestry Research
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Tropical landscapes are, in general, a mosaic of pasture, agriculture, and forest undergoing various stages of succession. ...
We review 318 peer-reviewed studies related to the use of remotely sensed AGB estimations in tropical forest succession studies and summarize their geographic distribution, sensors and methods used, and ...
Tambosi for commenting on earlier versions of this paper. ...
doi:10.1155/2014/715796
fatcat:3azwxrtldrc2peqtp5r5v3uype
Advances in remote sensing technology and implications for measuring and monitoring forest carbon stocks and change
2011
Carbon Management
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[3] including, for example, forest degradation associated with selective logging operations [32, 33] and structure changes and recovery following fire events [34, 35] . ...
Figure 3 shows an example for the tropical forests at the La Selva Biological Station in Costa Rica (after [39] ). ...
Bibliography Papers of special note have been highlighted as: n of interest ...
doi:10.4155/cmt.11.18
fatcat:fdzpfa3mtnam5lwvoxdbjklb54
Approaches of Satellite Remote Sensing for the Assessment of Above-Ground Biomass across Tropical Forests: Pan-tropical to National Scales
2020
Remote Sensing
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of pan-tropical AGB, and discusses major advancements in remote-sensing-based approaches for AGB mapping. ...
Understanding and accurate estimates of tropical forest biomass stocks are imperative in ascertaining the contribution of the tropical forests in global carbon dynamics. ...
For example, multi-sensor SAR time series from PALSAR-2, RADARSAT-2 and Sentinel-1 provided effective maps of selective logging in the tropical forests of Brazilian Amazon [196] . ...
doi:10.3390/rs12203351
fatcat:rvfj5oyvrjbnllbhnv527pe6jq
The NASA AfriSAR campaign: Airborne SAR and lidar measurements of tropical forest structure and biomass in support of current and future space missions
2021
Remote Sensing of Environment
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the AfriSAR airborne and field campaigns in Gabon. ...
We would also like to thank our collaborators from ESA, DLR, ONERA and CNES for the invitation to participate in the campaign. ...
The AfriSAR campaign also provided the opportunity to advance applications of current airborne and future spaceborne missions in the field of tropical forest ecology, conservation and biodiversity. ...
doi:10.1016/j.rse.2021.112533
fatcat:zjjfcgditratzbqyzzpjdaddzy
Structural Dynamics of Tropical Moist Forest Gaps
2015
PLoS ONE
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Airborne lidar data offer detailed information on three-dimensional forest structure, providing a means to characterize fine-scale (1 m) processes in tropical forests over large areas. ...
We offer a new definition of a forest gap that is driven by forest dynamics and consistent with precise ranging measurements from airborne lidar data and tall, multi-layered tropical forest structure. ...
Oliver and Larson [5] described the structural development of forest regeneration following disturbance in four stages: stand initiation from existing seed-banks or advanced regeneration, stem exclusion ...
doi:10.1371/journal.pone.0132144
pmid:26168242
pmcid:PMC4500587
fatcat:oq7ejfnvf5gcxapqsgpgkd4fxi
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