Results 51 to 60 of about 14,487 (238)

Assessing spatial distribution and quantification of native trees in Saskatchewan’s prairie landscape using remote sensing techniques

open access: yesEuropean Journal of Remote Sensing
The importance of trees in non-forest landscapes has been the focus of only a few studies. However, these trees provide many important ecosystem services. In this study, we mapped and quantified these trees using Sentinel-2 (S2) and very high-resolution (
Elham Shafeian   +3 more
doaj   +1 more source

Use of Aerial Laser Scanning to Assess the Effect on C Sequestration of Oak (Quercus ilex L. subsp. ballota [Desf.]Samp-Q. suber L.) Afforestation on Agricultural Land

open access: yesGeosciences, 2020
Conversion of agricultural lands to forest plantations to mitigate rising atmospheric carbon dioxide (CO2) has been proposed, but it depends on accurate estimation of the on-site carbon (C) stocks distribution. The use of aerial laser scanning (ALS) data
Miguel A. Lara-Gómez   +5 more
doaj   +1 more source

Unravelling the evolution of the Frébouge polygenetic cone in Val Ferret (Mont Blanc Massif)

open access: yesBoreas, EarlyView.
Proglacial settings in the Alps are typically polygenetic, often characterized by a complex and discontinuous interplay between glacial, fluvial and gravitational processes. These processes yield high volumes of sediments, which usually exceed their transportation capacity.
Catharina Dieleman   +6 more
wiley   +1 more source

Improvement of Remote Sensing-Based Assessment of Defoliation of Pinus spp. Caused by Thaumetopoea pityocampa Denis and Schiffermüller and Related Environmental Drivers in Southeastern Spain

open access: yesRemote Sensing, 2019
This study used Landsat temporal series to describe defoliation levels due to the Pine Processionary Moth (PPM) in Pinus forests of southeastern Andalusia (Spain), utilizing Google Earth Engine. A combination of remotely sensed data and field survey data
Javier Pérez-Romero   +4 more
doaj   +1 more source

Hydrodynamic parameters of floods and related bank erosion events indicated from tree rings and 2D hydrodynamic model for a small ungauged catchment (Sudeten Mts., Poland)

open access: yesEcological Indicators, 2021
Small mountain catchments usually lack hydrological monitoring and gauges. Therefore, in such areas, data on past flood and bank erosion are often missing, which makes assessing flood and erosion hazards very limited.
Ireneusz Malik   +5 more
doaj   +1 more source

Is there any Evidence for Regional Atmospheric 14C Offsets in the Southern Hemisphere? [PDF]

open access: yes, 2013
Center for Accelerator Mass Spectrometry (CAMS) Tasmanian huon pine (Lagarostrobos franklinii) decadal measurements for the interval AD 745–855 suggest a mean interhemispheric radiocarbon offset (20 ± 5 yr), which is considerably lower than the ...
Buckley, Brendan   +4 more
core   +2 more sources

Woody perennials as bio-monitors of air pollution around brick kilns in peri-urban ecosystem using pollution tolerance indices

open access: yesEnvironmental Research Communications
This study highlights the phytomonitoring potential of some selected woody perennials in terms of their resilience against pollution stress from brick kilns.
Ali Ahmad   +3 more
doaj   +1 more source

PEP725: 15 years of driving European and global phenology science

open access: yesNew Phytologist, EarlyView.
Summary Phenology – the timing of seasonal biological events – is a sensitive indicator of climate change and ecosystem dynamics. Long‐term, broad‐scale phenological data are crucial for understanding and predicting plant responses to environmental change.
Barbara Templ   +4 more
wiley   +1 more source

An ashy septingentenarian: the Kaharoa tephra turns 700 (with notes on its volcanological, archaeological, and historical importance) [PDF]

open access: yes, 2014
Most of us are aware of the basaltic Tarawera eruption on 10th June 1886: the high toll on life (~120 people), landscape devastation, and loss of the Pink and White Terraces.
Lowe, David J., Pittari, Adrian
core   +1 more source

Sap flow and water transfer in the Garonne river riparian woodland, France : first results on poplar and willow [PDF]

open access: yes, 2002
This work is the first attempt at using Granier sap sensors on Populus nigra, Populus x euramericana cv I45/51 and Salix alba for the monitoring of sap flows in an active floodplain over two consecutive years.
Lambs, Luc, Muller, Etienne
core   +1 more source

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