Results 81 to 90 of about 23,075 (290)

Forest Canopy Height Estimation Combining Dual-Polarization PolSAR and Spaceborne LiDAR Data [PDF]

Forest canopy height data are fundamental parameters of forest structure and are critical for understanding terrestrial carbon stock, global carbon cycle dynamics and forest productivity.
Yanzhou Xie, Nan Li, Haiqiang Fu, Yao Tong, Zhiwei Liu, Rong Zhao, Shujuan Fu, Jianjun Zhu, Huacan Hu   +8 more
core   +1 more source

Topography constrains the climatic response of treeline migration in Taiwan's subalpine forests

Ecography, EarlyView.
Treelines are moving upslope, but the rates and drivers differ among different regions, globally. Many studies have examined the relationship between treeline movement and climate change, particularly rising temperature, while the role of topographical factors has received much less attention, despite the longstanding recognition of its importance.
Kuan‐Yu Chen, Jonathan Peereman, J. Aaron Hogan, Teng‐Chiu Lin   +3 more
wiley   +1 more source

Using multiscale lidar to determine variation in canopy structure from African forest elephant trails [PDF]

Recently classified as a unique species by the IUCN, African forest elephants (Loxodonta cyclotis) are critically endangered due to severe poaching. With limited knowledge about their ecological role due to the dense tropical forests they inhabit in ...
Jantz, Patrick, Jenna M. Keany, Christopher E. Doughty, Keany, Jenna M., Saatchi, Sassan, Doughty, Christopher E., Patrick Jantz, Burns, Patrick, Patrick Burns, Andrew J. Abraham, Sassan Saatchi, Maisels, Fiona, Fiona Maisels, Abernethy, Katharine, Abraham, Andrew J., Katharine Abernethy, Makaga, Loic, Loic Makaga   +17 more
core   +1 more source

Regeneration failure, fire, topography, and climate interact to drive temperate wet forest landscapes into fire traps

Ecography, EarlyView.
Where early successional forests are more flammable than old‐growth forests, forested landscapes are vulnerable to shifting into ‘fire traps' through positive feedbacks, where fire leads to more fire. These feedbacks are amplified by increased flammability driven by climate change, the presence of non‐native flammable plant species, and slowed ...
George L. W. Perry, Craig E. Simpkins, Kiri Reihana, James M. R. Brock, Peter J. Bellingham   +4 more
wiley   +1 more source

Faster growing and more functionally diverse: global change alters functional trait composition of mountain plant communities in the European Alps

Ecography, EarlyView.
Understanding how global change reshapes mountain plant communities is essential for predicting biodiversity and ecosystem function in a warming world. Using resurvey data from over 1400 non‐forest vegetation plots across the European Alps, we show that community‐weighted means of key functional traits capturing important dimensions of plant ecological
Sergey Rosbakh, Sabine B. Rumpf, Stefan Dullinger   +2 more
wiley   +1 more source

Estimation of Forest Height and Canopy Density From a Single InSAR Correlation Coefficient [PDF]

IEEE Geoscience and Remote Sensing Letters, 2015
A two-level model (TLM) is introduced and investigated for the estimation of forest height and canopy density from a single ground-corrected InSAR complex correlation coefficient. The TLM models forest as two scattering levels, namely, ground and vegetation, separated by a distance Delta h and with area-weighted backscatter ratio mu.
Maciej Jerzy Soja, Henrik Persson, Lars M. H. Ulander   +2 more
openaire   +2 more sources

Spaceborne Multifrequency PolInSAR-Based Inversion Modelling for Forest Height Retrieval [PDF]

, 2020
Spaceborne and airborne polarimetric synthetic-aperture radar interferometry (PolInSAR) data have been extensively used for forest parameter retrieval.
Shashi Kumar, Praveen K. Thakur, Satya P. S. Kushwaha, Prashant K. Srivastava, Himanshu Govil   +4 more
core   +1 more source

Drought Risk in Mango and Avocado Orchards: Insights Into Plant Water Relations and Irrigation‐Related Agronomic Solutions

Irrigation and Drainage, EarlyView.
ABSTRACT Climate change is making water availability more uncertain, with growing consequences for the productivity and long‐term sustainability of tropical and subtropical fruit orchards. Mangifera indica L. and Persea americana Mill. both require large amounts of water to sustain growth and productivity.
Eleonora Cataldo
wiley   +1 more source

Tracking Southern China’s Forest Growth from Space

Journal of Remote Sensing
Forest canopy height reflects the vertical structure of forests and gives indications on the growth capacity of trees and the level of forest biomass.
Jingyi Chang, Xiaowei Tong, Martin Brandt, Wenmin Zhang, Yuemin Yue, Jun Lu, Siyu Liu, Lu Zhai, Kelin Wang   +8 more
doaj   +1 more source

Estimation of Forest Canopy Height in Hilly Areas Using Lidar Waveform Data

IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, 2019
Forest canopy height (FCH) is a key parameter in the estimation of forest biomass and productivity. However, areas with hilly or mountainous terrain present a genuine challenge to extract the vertical structural parameters by using the large footprint Lidar full waveform data.
Lixin Dong, Shihao Tang, Min Min, Frank Veroustraete   +3 more
openaire   +2 more sources