Results 11 to 20 of about 462,434 (362)

Ozone exchange within and above an irrigated Californian orchard [PDF]

open access: yes, 2020
In this study, the canopy effects on the vertical ozone exchange within and above Californian orchard are investigated. We examined the comprehensive dataset obtained from the Canopy Horizontal Array Turbulence Study (CHATS).
Brown, J. S.   +7 more
core   +2 more sources

Seasonal Patterns in Spectral Irradiance and Leaf UV-A Absorbance Under Forest Canopies

open access: yesFrontiers in Plant Science, 2020
Plants commonly respond to UV radiation through the accumulation of flavonoids and related phenolic compounds which potentially ameliorate UV-damage to crucial internal structures.
Saara Maria Hartikainen   +4 more
doaj   +1 more source

Community Structure in an Isolated Tropical Forest Biome: One Year of Fruit-Feeding Butterfly Trapping in Four Habitats in the Western Ghats, India

open access: yesDiversity, 2022
Insect communities in tropical forests tend to be structured vertically and with respect to tree fall gaps and edges. Furthermore, insect communities vary over time.
Karumampoyil Sakthidas Anoop Das   +2 more
doaj   +1 more source

Plant canopy shape and the influences on UV exposures to the canopy [PDF]

open access: yes, 1996
The solar spectra at selected sites over hemispherical, conical and pinnacle plant canopy models has been evaluated with a dosimetric technique. The irradiance at the sites varies by up to a factor of 0.31 compared to the irradiance on a horizontal plane.
Caldwell M. M.   +8 more
core   +2 more sources

The significance of atmospheric nutrient inputs and canopy interception of precipitation during ecosystem development in piñon-juniper woodlands of the southwestern USA [PDF]

open access: yes, 2013
In arid ecosystems, widely spaced vegetation and prolonged dry periods may enhance canopy capture of nutrients from dry deposition. Additionally, differences in precipitation type, plant canopy architecture, and soil nutrient limitation could affect ...
Coble, AA, Hart, SC
core   +1 more source

Spatial and Temporal Habitat Use of an Asian Elephant in Sumatra [PDF]

open access: yes, 2013
Increasingly, habitat fragmentation caused by agricultural and human development has forced Sumatran elephants into relatively small areas, but there is little information on how elephants use these areas and thus, how habitats can be managed to sustain ...
Fuller, Todd K.   +3 more
core   +6 more sources

The regional market for non-timber forest products

open access: yesDesenvolvimento e Meio Ambiente, 2018
The fate of tropical forests is shaped by their perceived value, which in turn depends on awareness of their benefits.  Regional markets for non-timber forest products (NTFPs) could both help rural people generate income from forests and raise urban ...
Matleena Vuola   +2 more
doaj   +1 more source

Polyploidization for the Genetic Improvement of Cannabis sativa

open access: yesFrontiers in Plant Science, 2019
Cannabis sativa L. is a diploid species, cultivated throughout the ages as a source of fiber, food, and secondary metabolites with therapeutic and recreational properties.
Jessica L. Parsons   +6 more
doaj   +1 more source

A comparison of three canopy interception models for a leafless mixed deciduous forest stand in the eastern United States [PDF]

open access: yes, 2007
Canopy interception of incident precipitation is a critical component of the forest water balance during each of the four seasons. Models have been developed to predict precipitation interception from standard meteorological variables because of ...
Frost, Ethan E.   +2 more
core   +1 more source

Pengaruh musim terhadap kelimpahan kumbang moncong (Coleoptera: Curculionidae) pada tipe penggunaan lahan berbeda di lanskap Hutan Harapan dan Taman Nasional Bukit Duabelas, Jambi

open access: yesJurnal Entomologi Indonesia, 2021
Land-use change from forest to plantation can cause the loss of various types of insect diversity group, one of which is the beetle group. Curculionids or weevils is one of the largest families in the Order Coleoptera due to its adaptability in almost ...
Fatimah Siddikah   +2 more
doaj   +1 more source

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