Results 81 to 90 of about 224,955 (211)

Canopy uptake dominates nighttime carbonyl sulfide fluxes in a boreal forest [PDF]

open access: yes, 2017
Nighttime vegetative uptake of carbonyl sulfide (COS) can exist due to the incomplete closure of stomata and the light independence of the enzyme carbonic anhydrase, which complicates the use of COS as a tracer for gross primary productivity (GPP).
Aalto, J.   +15 more
core   +7 more sources

ICESat/GLAS Data as a Measurement Tool for Peatland Topography and Peat Swamp Forest Biomass in Kalimantan, Indonesia [PDF]

open access: yes, 2011
Indonesian peatlands are one of the largest near-surface pools of terrestrial organic carbon. Persistent logging, drainage and recurrent fires lead to huge emission of carbon each year.
Anderson   +18 more
core   +2 more sources

A correlation analysis of percent canopy closure versus TMS spectral response for selected forest sites in the San Juan National Forest, Colorado [PDF]

open access: yes
The correlation of canopy closure with the signal response of individual thematic mapper simulator (TMS) bands for selected forest sites in the San Juan National Forest, Colorado was investigated.
Butera, M. K.
core   +1 more source

MODERATE SEVERITY DISTURBANCE HAS SIMILAR EFFECTS ON THE PRODUCTION OF THREE FORESTS NESTED WITHIN THE UPPER GREAT LAKES LANDSCAPE [PDF]

open access: yes, 2017
Moderate severity disturbances, which only kill a subset of canopy trees (e.g., via insects, pathogens, and windthrow), are increasingly widespread, and can alter forest structure and production.
Sagara, Benjamin Tai
core   +1 more source

Characterizing Maritime Snow Canopy Interception in Forested Mountains

open access: yesWater Resources Research, 2019
Air temperature (Tair) plays an important role in determining how a canopy intercepts snow and apart from event size is the single most important micrometeorological variable found to adequately influence interception rates and magnitude.
T. R. Roth, A. W. Nolin
doaj   +1 more source

Using ICESAT\u27s geoscience laser altimeter system to assess large scale forest disturbance caused by Hurricane Katrina [PDF]

open access: yes, 2009
We assessed the use of GLAS data as a tool to quantify large-scale forest damage. GLAS data for the year prior to and following Hurricane Katrina were compared to wind speed, forest cover, and MODIS NPV maps to analyze senor sampling, and changes in mean
Dolan, Katelyn A
core   +1 more source

The influence of stand composition and season on canopy structure and understory light environment in different subtropical montane Pinus massoniana forests [PDF]

open access: yesPeerJ
Canopy structure and understory light have important effects on forest productivity and the growth and distribution of the understory. However, the effects of stand composition and season on canopy structure and understory light environment (ULE) in the ...
Peng Jin   +3 more
doaj   +2 more sources

Comparison of Seven Inversion Models for Estimating Plant and Woody Area Indices of Leaf-on and Leaf-off Forest Canopy Using Explicit 3D Forest Scenes

open access: yesRemote Sensing, 2018
Optical methods require model inversion to infer plant area index (PAI) and woody area index (WAI) of leaf-on and leaf-off forest canopy from gap fraction or radiation attenuation measurements.
Jie Zou   +7 more
doaj   +1 more source

Mapping Windthrow Severity as Change in Canopy Cover in a Temperate Eucalypt Forest

open access: yesRemote Sensing
Storm events are significant disturbance agents that can cause considerable forest damage through windthrow. Assessment and mapping of the extent and severity of windthrow is critical to provide reliable information to forest managers to prioritize post ...
Nina Hinko-Najera   +8 more
doaj   +1 more source

Estimating source-sink distributions and fluxes of reactive nitrogen and sulfur within a mixed forest canopy. [PDF]

open access: yesAgric For Meteorol, 2023
Wu Z   +8 more
europepmc   +1 more source

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