Results 171 to 180 of about 264,509 (333)

Landscape, stand and tree characteristics influence the distribution of lightning damage in Central African forests

open access: yesFunctional Ecology, EarlyView.
Read the free Plain Language Summary for this article on the Journal blog. Abstract The impact of lightning in tropical forests remains uncertain. Specifically, the factors that influence the spatial distribution of lightning damage within forests remain unknown.
Bianca Zoletto   +14 more
wiley   +1 more source

L-band radar sensing of soil moisture [PDF]

open access: yes
The performance of an L-band, 25 cm wavelength imaging synthetic aperture radar was assessed for soil moisture determination, and the temporal variability of radar returns from a number of agricultural fields was studied.
Atwater, S.   +5 more
core   +1 more source

State‐and‐transition models as a contextual framework for leading indicators of restoration trajectories

open access: yesMethods in Ecology and Evolution, EarlyView.
Abstract New incentives and instruments for financing ecosystem restoration require frameworks that support planning, monitoring and reporting, including the identification and use of leading indicators. Leading indicators have the potential to predict the outcomes of restoration interventions before full recovery has occurred.
Sarah J. Luxton   +8 more
wiley   +1 more source

Calculations of radar backscattering coefficient of vegetation-covered soils [PDF]

open access: yes
A model for simulating the measured backscattering coefficient of vegetation-covered soil surfaces includes both coherent and incoherent components of the backscattered radar pulses from a rough sil surface.
Jackson, T. J., Mo, T., Schmugge, T. J.
core   +1 more source

Applying the maximum entropy principle to neural networks enhances multi‐species distribution models

open access: yesMethods in Ecology and Evolution, EarlyView.
Abstract The increasing volume of presence‐only (PO) data generated by citizen science initiatives has greatly expanded biodiversity databases, but the statistical use of these data in species distribution models (SDMs) remains limited by strong sampling biases and the absence of reliable absence information.
Maxime Ryckewaert   +5 more
wiley   +1 more source

Information flow and the adoption of soil‐improving and water conservation measures, and household welfare: Insights from a randomized controlled trial in Uganda

open access: yesAmerican Journal of Agricultural Economics, EarlyView.
Abstract Extension services are designed to facilitate the flow of information from researchers to farmers. However, information failures continue to impede the diffusion of soil‐improving and water conservation technologies in Sub‐Saharan African countries. We use a randomized controlled trial (RCT) to examine the impact of an extension‐based campaign
Esther Gloria Mbabazi   +3 more
wiley   +1 more source

Soil moisture inferences from thermal infrared measurements of vegetation temperatures [PDF]

open access: yes
Thermal infrared measurements of wheat (Triticum durum) canopy temperatures were used in a crop water stress index to infer root zone soil moisture. Results indicated that one time plant temperature measurement cannot produce precise estimates of root ...
Jackson, R. D.
core   +1 more source

Soil wetting and drying processes influence stone artefact distribution in clay‐rich soils: A case study from Middle Gidley Island in Murujuga, northwest Western Australia

open access: yesArchaeometry, EarlyView.
Abstract Soils that contain swelling clay minerals (e.g., montmorillonite) expand and contract during wetting and drying, causing movement within the soil profile. This process, known as argilliturbation, can alter artefact distributions, destroy stratigraphy and complicate the interpretation of archaeological deposits.
Caroline Mather   +11 more
wiley   +1 more source

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