Results 11 to 20 of about 417,353 (209)

Adjustment of a turbulent boundary layer to a 'canopy' of roughness elements [PDF]

open access: yes, 2003
A model is developed for the adjustment of the spatially averaged time-mean flow of a deep turbulent boundary layer over small roughness elements to a canopy of larger three-dimensional roughness elements.
Belcher, SE, Hunt, JCR, Jerram, N
core   +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

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

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

Biodiversity: Complementary canopies

open access: yesNature Ecology & Evolution, 2017
Physical complementarity among trees in the use of vertical space increases productivity due to species-specific differences and plasticity in crown architecture.
Schmid, Bernhard, Niklaus, Pascal A
openaire   +3 more sources

Canopy processes research [PDF]

open access: yesTree Physiology, 2002
The forest canopy regulates the exchange of carbon, water and energy between the ecosystem and the atmosphere, and provides a habitat for a wide variety of species. Understanding canopy processes is important for modeling forest production and carbon sequestration, and for predicting the effects of global changes in climate and atmospheric chemistry on
openaire   +2 more sources

Composition and Host-Use Patterns of a Scarab Beetle (Coleoptera: Scarabaeidae) Community Inhabiting the Canopy of a Lowland Tropical Rainforest in Southern Venezuela [PDF]

open access: yes, 2019
The adult scarab beetle fauna of the canopy in a lowland tropical rainforest in southern Venezuela was observed and collected by means of a 42 m-tall tower crane for a complete year.
Kirmse, Susan, Ratcliffe, Brett C.
core   +2 more sources

Data Farming Process and Initial Network Analysis Capabilities

open access: yesAxioms, 2016
Data Farming, network applications and approaches to integrate network analysis and processes to the data farming paradigm are presented as approaches to address complex system questions.
Gary Horne, Theodore Meyer
doaj   +1 more source

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