Results 81 to 90 of about 125,509 (280)

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

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

Global analysis suggests nitrogen deposition as an underestimated driver of vegetation greening

Ecography, EarlyView.
The local effects of atmospheric nitrogen deposition on plants are well established, yet a global empirical analysis of nitrogen deposition effects on vegetation dynamics is missing. Here, we assess how nitrogen deposition, alongside other global change drivers such as fire, and changes in temperature, precipitation and human land use, is related to ...
Jonas Trepel, Joe Atkinson, Oliver Baines, Matthew Kerr, Elizabeth le Roux, Hannah Rubin, Jens‐Christian Svenning, Robert Buitenwerf   +7 more
wiley   +1 more source

Scenario-Adaptive Multisource LiDAR Sample Fusion for Forest Canopy-Height Retrieval Using a Machine-Learning-Based Dynamic Ensemble Selection Algorithm

IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing
Forest canopy height is fundamental for characterizing forest structure and assessing biomass and ecosystem functions, but regional mapping in mountainous forests remains challenged by limited and unevenly distributed footprint samples, which can reduce ...
Pengfei Zhang, Ke Zhang, Jiefan Niu, Xu Yang   +3 more
doaj   +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

A Deep Learning Approach for High-Resolution Canopy Height Mapping in Indonesian Borneo by Fusing Multi-Source Remote Sensing Data

Remote Sensing
Accurate mapping of forest canopy height is essential for monitoring forest structure, assessing biodiversity, and informing sustainable management practices.
Andrew J. Chamberlin, Zac Yung-Chun Liu, Christopher G. L. Cross, Julie Pourtois, Iskandar Zulkarnaen Siregar, Dodik Ridho Nurrochmat, Yudi Setiawan, Kinari Webb, Skylar R. Hopkins, Susanne H. Sokolow, Giulio A. De Leo   +10 more
doaj   +1 more source

Characterising City Scale Heat Climatology for Australian Climate Zones

International Journal of Climatology, EarlyView.
The Urban Heat Island (UHI) effect in Australian cities peaks at night, intensifying under dry conditions, clear skies, increased solar radiation, and low wind speeds. Long‐term observations show that nighttime temperatures in major cities have warmed faster than their rural surroundings and future climate projections fail to capture this disparity ...
Vihan C. N. Weeraratne, Nikhil Garg, Raymond C. Z. Cohen, Valentijn R. N. Pauwels, Mahesh Prakash   +4 more
wiley   +1 more source

Mapping Forest Height in Alaska Using GLAS, Landsat Composites, and Airborne LiDAR

Remote Sensing, 2014
Vegetation structure, including forest canopy height, is an important input variable to fire behavior modeling systems for simulating wildfire behavior.
Birgit Peterson, Kurtis J. Nelson
doaj   +1 more source

Effect of different light‐emitting diodes on vegetative cannabis growth and antioxidant activity

JSFA reports, EarlyView.
Abstract Background Cannabis stands as one of the world's oldest plant sources for food and textile fiber. The study aimed to assess the impact of white LED (blue; 446 nm + amber; 595 nm + red; 653 nm), wide PC amber (595 nm), narrow amber (595 nm) + royal blue (430 nm) (NA + RB), and narrow amber (595 nm) + royal blue (430 nm) + cyan blue (485 nm) (NA 
Zohreh Poudineh, Philip Wiredu Addo, Vincent Desaulniers Brousseau, Anne‐Sophie Rufyikiri, Sarah MacPherson, Valérie Orsat, Mark Lefsrud   +6 more
wiley   +1 more source