Results 101 to 110 of about 23,075 (290)

Accurate Estimation of Forest Canopy Height Based on GEDI Transmitted Deconvolution Waveforms [PDF]

Accurate estimation of the forest canopy height is crucial in monitoring the global carbon cycle and evaluating progress toward carbon neutrality goals.
Jun Wu, Longtao Cai, Jiasheng He, Inthasone Somsack, Xuemei Zhao   +4 more
core   +1 more source

A Field Guide for Soil Erosion Risk Assessment in Olive Orchards Across Mediterranean Conditions for End‐Users and Stakeholders

Land Degradation &Development, EarlyView.
ABSTRACT Soil erosion control poses a crucial challenge to the sustainability of Mediterranean olive groves. To facilitate field‐level decision‐making, we have developed a field guide oriented to use in any type of olive orchard across the Mediterranean.
I. Domenech‐Carretero, G. Guzmán, M. A. Soriano, J. Montoliu, J. A. Gómez   +4 more
wiley   +1 more source

Wall‐to‐wall Amazon forest height mapping with Planet NICFI, Aerial LiDAR, and a U‐Net regression model

Remote Sensing in Ecology and Conservation
Tree canopy height is a key indicator of forest biomass, productivity and structure, yet measuring it accurately at regional or larger scales, whether from the ground or remotely, remains challenging.
Fabien H. Wagner, Ricardo Dalagnol, Griffin Carter, Mayumi C. M. Hirye, Shivraj Gill, Le Bienfaiteur Sagang Takougoum, Samuel Favrichon, Michael Keller, Jean P. H. B. Ometto, Lorena Alves, Cynthia Creze, Stephanie P. George‐Chacon, Shuang Li, Zhihua Liu, Adugna Mullissa, Yan Yang, Erone G. Santos, Sarah R. Worden, Martin Brandt, Philippe Ciais, Stephen C. Hagen, Sassan Saatchi   +21 more
doaj   +1 more source

Alpine Secondary Forest Types Influence Soil Microbial Community Structure and Enzyme Activities on the Eastern Qinghai–Tibet Plateau

Land Degradation &Development, EarlyView.
ABSTRACT Soil microbial communities and enzyme activities influence soil functions and tree growth in ecologically fragile alpine regions. However, differences in soil microbial communities among secondary forests remain poorly understood in the Qinghai–Tibet Plateau.
Qiuyun Fan, Ruoqi Zhang, Yuqing Geng, Yaning Luan, Yuhai Zhang, Yali Yuan   +5 more
wiley   +1 more source

Species level mapping of forest canopy height in Nepal using GEDI with Sentinel-1 and Sentinel-2

Frontiers in Remote Sensing
Forest canopy height mapping is critical for mapping and modeling bio-geophysical and ecological factors, including forest aboveground biomass, carbon reserves, forest carbon emissions, habitat diversity, forest degradation, and restoration success.
Abid Nazir, Niall P. Hanan, Hammad Gilani, Him Lal Shrestha   +3 more
doaj   +1 more source

Uncertainties in Forest Canopy Height Estimation From Polarimetric Interferometric SAR Data

IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, 2018
The random volume over ground (RVoG) model has been widely applied to estimate forest tree height from polarimetric synthetic aperture radar (SAR) interferometry (PolInSAR) data for the past two decades. Successful application of the RVoG model requires certain assumptions to be valid for the imaged forest and the acquisition scenarios in order to ...
Bryan V. Riel, Michael Denbina, Marco Lavalle   +2 more
openaire   +1 more source

Soil and Forest Degradation Driven by Cattle Grazing and Selective Logging in Sub‐Antarctic Nothofagus Ecosystems of Patagonia

Land Degradation &Development, EarlyView.
ABSTRACT Soil and forest degradation driven by chronic land‐use pressures is an increasingly widespread process in forested landscapes worldwide, yet its empirical characterization remains limited, particularly in temperate and sub‐Antarctic ecosystems.
Carlos Zamorano‐Elgueta, Susana Valle, Simona Landi, José Dörner, Luis Cayuela   +4 more
wiley   +1 more source

Canopy height damage by Typhoon Songda in Northern Hokkaido, Japan, in 2004

Environmental Research: Ecology
The increasing need for the risk assessment of disastrous wind disturbance, especially by tropical cyclones (TCs), has been emphasized because the number of intense TCs is projected to increase due to global warming, though there are some discrepancies ...
TaeOh Kwon, Hideaki Shibata, Tetsuya Takemi, Kentaro Takagi   +3 more
doaj   +1 more source

The use of sun elevation angle for stereogrammetric boreal forest height in open canopies

Remote Sensing of Environment, 2017
Stereogrammetry applied to globally available high resolution spaceborne imagery (HRSI; < 5 m spatial resolution) yields fine-scaled digital surface models (DSMs) of elevation. These DSMs may represent elevations that range from the ground to the vegetation canopy surface, are produced from stereoscopic image pairs (stereopairs) that have a variety of ...
Paul M, Montesano, Christopher, Neigh, Guoqing, Sun, Laura, Duncanson, Jamon Van Den, Hoek, K, Jon Ranson   +5 more
openaire   +3 more sources

Breynia phuongiana (Phyllanthaceae), a new species from the Central Highlands of Vietnam

Nordic Journal of Botany, EarlyView.
A new species, Breynia phuongiana (Phyllanthaceae subgen. Sauropus), is described and illustrated from the Central Highlands of Vietnam. It is morphologically similar to B. beillei, B. bonii, and B. thorelii, but differs in having oblong‐elliptic leaves, sepals marked with reddish striations, an androphore exceeding 1 mm in length, and distinctly ...
Van Canh Nguyen, Thi Thuy Nhan Tran, Ba Vuong Truong, Leonid V. Averyanov, Thi Hoa Nguyen, Thanh Nha Phan‐Thi, Nguyen‐Khanh‐Trinh Tram   +6 more
wiley   +1 more source