Results 131 to 140 of about 24,870 (271)

Dual Polarimetric Radar Vegetation Index for monitoring forest moisture stress using time series of Sentinel‐1 SAR data

open access: yesPlant Biology, EarlyView.
This study demonstrates the potential of the Sentinel‐1 Dual Polarimetric Radar Vegetation Index, combined with climate variables and the Standardized Precipitation–Evapotranspiration Index, to effectively detect and monitor drought‐induced stress in temperate broadleaf deciduous forests.
B. Ranjit   +3 more
wiley   +1 more source

Declining Snow Resources Since 2000 in Arid Northwest China Based on Integrated Remote Sensing Indicators

open access: yesRemote Sensing
Snow cover variations significantly affect the stability of regional water supply and terrestrial ecosystems in arid northwest China. This study comprehensively evaluates snow resource changes since 2000 by integrating multisource remote sensing datasets
Siyu Bai   +5 more
doaj   +1 more source

Recurrent hot droughts cause persistent legacy effects in a temperate Scots Pine forest

open access: yesPlant Biology, EarlyView.
A series of hot drought events caused persistent legacy effects in a Scots Pine forest, with severe negative impacts on ecosystem carbon fluxes. Abstract Recent hot‐dry events have caused significant impacts and legacy effects in temperate ecosystems. Here, we investigate legacy effects of the 2018 hot drought on a Pinus sylvestris L.
S. Haberstroh   +4 more
wiley   +1 more source

ERTS-1 evaluation of natural resources management applications in the Great Basin [PDF]

open access: yes
The relatively cloud free weather in the Great Basin has allowed the accumulation of several dates of excellent ERTS-1 imagery. Mountains, valleys, playas, stream courses, canyons, alluvial fans, and other landforms are readily delineated on ERTS-1 ...
Lorain, G., Tueller, P. T.
core   +1 more source

Leaf Shedding During Drought Reduces Hydraulic Stress in Trees

open access: yesAGU Advances, Volume 7, Issue 2, April 2026.
Abstract Leaf area has long been a proxy for ecosystem function. However, it can be highly variable even in the same forest types across space and time due to variations in local ecohydrology and climatic extremes such as droughts and heatwaves. Leaf shedding in response to drought has been documented at site‐scales, theoretically to avoid hydraulic ...
G. R. Quetin   +2 more
wiley   +1 more source

The new indices to describe temporal discontinuity of snow cover on the Qinghai-Tibet Plateau

open access: yesnpj Climate and Atmospheric Science
Snow cover on the Qinghai-Tibet Plateau significantly impacts the climate, hydrology, and ecology of China and East Asia. Current studies mainly use snow cover days to describe its duration, overlooking the snow’s discontinuous nature.
Jing Wang, Lin Tang, Heng Lu
doaj   +1 more source

Changing Aerodynamic Roughness in WRF Reduces Bias and Improves Accuracy in Near‐Surface Wind Simulations

open access: yesGeophysical Research Letters, Volume 53, Issue 6, 28 March 2026.
Abstract Accurate simulation of near‐surface wind speed is crucial for applications in renewable energy, dust emission, and air quality modeling. However, the Weather Research and Forecasting (WRF) model systematically over‐estimates 10 m wind speed due to simplified representations of surface roughness and momentum exchange.
Hongquan Song   +5 more
wiley   +1 more source

Integrating landscape ecology into generic surveillance plans for bark‐ and wood‐boring beetles

open access: yesEcological Applications, Volume 36, Issue 2, March 2026.
Abstract International trade poses a growing threat to global biosecurity, with bark‐ and wood‐boring beetles representing a major concern for forest health. Non‐native species are frequently introduced at points of entry, where populations can establish in the surrounding landscape.
Davide Nardi   +21 more
wiley   +1 more source

Phenology, growth, and fecundity of eight subarctic tundra species in response to snowmelt manipulations [PDF]

open access: yes, 2018
The snow cover extent is an important factor for the structure and composition of arctic and alpine tundra communities. Over the last few decades, snowmelt in many arctic and alpine regions has advanced, causing the growing season to start earlier and ...
Wipf, Sonja
core  

Predation Risk Does Not Delay Breeding but Reduces Nest Survival in High‐Arctic Shorebirds

open access: yesEcology and Evolution, Volume 16, Issue 3, March 2026.
We assessed the impact of arctic foxes' predation pressure on two sympatric sandpiper species. Fox activity influenced the breeding ecology of both sandpipers, with earlier nest initiations and lower nest survival rates in areas of high fox activity. ABSTRACT Understanding predator–prey interactions is crucial for correctly answering many fundamental ...
Laura Bonnefond   +8 more
wiley   +1 more source

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