Results 31 to 40 of about 232,366 (358)

Forests and Their Canopies: Achievements and Horizons in Canopy Science [PDF]

open access: yesTrends in Ecology & Evolution, 2017
Forest canopies are dynamic interfaces between organisms and atmosphere, providing buffered microclimates and complex microhabitats. Canopies form vertically stratified ecosystems interconnected with other strata. Some forest biodiversity patterns and food webs have been documented and measurements of ecophysiology and biogeochemical cycling have ...
Nakamura, Akihiro   +16 more
openaire   +5 more sources

Light intensity affects spatial distribution of Heteroptera in deciduous forests

open access: yesEuropean Journal of Entomology, 2009
Studies on the effect of varying light intensity on the spatial distribution of flying insect communities are rare, particularly in complex ecosystems like forests.
Martin M. GOSSNER
doaj   +1 more source

The influence of forest regrowth, original canopy cover and tree size on saproxylic beetles associated with old oaks [PDF]

open access: yes, 2000
Abandoned management has caused many sites with free-standing, large oaks (Quercus robur) to become more shaded. This study shows how forest regrowth affects beetle species associated with old oaks in south-eastern Sweden. Beetles were trapped by pitfall
Jansson, Nicklas, Ranius, Thomas
core   +1 more source

Estimating Forest Structural Parameters Using Canopy Metrics Derived from Airborne LiDAR Data in Subtropical Forests

open access: yesRemote Sensing, 2017
Accurate and timely estimation of forest structural parameters plays a key role in the management of forest resources, as well as studies on the carbon cycle and biodiversity.
Zhengnan Zhang, Lin Cao, Guanghui She
doaj   +1 more source

Evapotranspiration and water use efficiency in relation to climate and canopy nitrogen in U.S. forests [PDF]

open access: yes, 2016
Understanding relations among forest carbon (C) uptake and water use is critical for predicting forest-climate interactions. Although the basic properties of tree-water relations have long been known, our understanding of broader-scale patterns is ...
Anav   +119 more
core   +3 more sources

Simultaneous HONO measurements in and above a forest canopy: influence of turbulent exchange on mixing ratio differences [PDF]

open access: yesAtmospheric Chemistry and Physics, 2011
We have combined chemical and micrometeorological measurements to investigate the formation and distribution of HONO throughout a forest canopy. HONO was measured simultaneously at two heights, close to the forest floor and just above canopy.
M. Sörgel   +5 more
doaj   +1 more source

Uncertainty analysis for forest height inversion using L / P band PolInSAR datasets and RVoG model over kryclan forest site

open access: yesInternational Journal of Applied Earth Observations and Geoinformation
Forest height, as a measure of the quantity and quality of forest resources, plays a significant role in the study of the ecological functions performed by forests.
Han Zhao   +3 more
doaj   +1 more source

Ice storm effects on the canopy structure of a northern hardwood forest after 8 years [PDF]

open access: yes, 2009
Ice storms can cause severe damage to forest canopies, resulting in differential mortality among tree species and size classes and leading to long-lasting changes in the vertical structure and composition of the forest.
Hamburg, Steven P.   +2 more
core   +3 more sources

Measuring rainfall to a forest canopy: an assessment of the performance of canopy level raingauges [PDF]

open access: yesHydrology and Earth System Sciences, 2004
Accurate rainfall measurements are crucial for water resource and environmental assessments but can be difficult to achieve in extensive areas of forest. This paper reviews the different techniques for measuring rainfall to a forest area and presents
M. Robinson   +6 more
doaj  

Effect of stand density, canopy leaf area index and growth variables on Dendrocalamus brandisii (Munro) Kurz litter production at Simao District of Yunnan Province, southwestern China

open access: yesGlobal Ecology and Conservation, 2020
Litterfall is the primary interface between the forest canopy and forest floor for efficient carbon and nutrient cycling. However, there is limited knowledge on factors that influence D. brandisii litter production and its seasonal dynamics.
Tinsae Bahru, Yulong Ding
doaj   +1 more source

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