Results 11 to 20 of about 106,533 (338)

Leaf area index (LAI) and gap fraction. A discussion

open access: yesBaltic Forestry, 2023
Methodological aspects of estimating leaf area from gap fraction measurements are discussed. Instead of the common practice of linking in the Beer-Lambert law leaf area index and clumping factor together, the clumping factor and Ross-Nilson geometry ...
Andres Kuusk
semanticscholar   +2 more sources

An Overview of Global Leaf Area Index (LAI): Methods, Products, Validation, and Applications [PDF]

open access: yesReviews of Geophysics, 2019
Leaf area index (LAI) is a critical vegetation structural variable and is essential in the feedback of vegetation to the climate system. The advancement of the global Earth Observation has enabled the development of global LAI products and boosted global
H. Fang   +3 more
semanticscholar   +5 more sources

UAV Based Estimation of Forest Leaf Area Index (LAI) through Oblique Photogrammetry [PDF]

open access: yesRemote Sensing, 2021
As a key canopy structure parameter, the estimation method of the Leaf Area Index (LAI) has always attracted attention. To explore a potential method to estimate forest LAI from 3D point cloud at low cost, we took photos from different angles of the ...
Lingchen Lin   +7 more
semanticscholar   +3 more sources

Spatial Heterogeneity of Leaf Area Index (LAI) and Its Temporal Course on Arable Land: Combining Field Measurements, Remote Sensing and Simulation in a Comprehensive Data Analysis Approach (CDAA). [PDF]

open access: yesPLoS One, 2016
The ratio of leaf area to ground area (leaf area index, LAI) is an important state variable in ecosystem studies since it influences fluxes of matter and energy between the land surface and the atmosphere.
Reichenau TG   +7 more
europepmc   +2 more sources

Characterizing leaf area index (LAI) and vertical foliage profile (VFP) over the United States [PDF]

open access: yesBiogeosciences, 2015
. Leaf area index (LAI) and vertical foliage profile (VFP) are among the important canopy structural variables. Recent advances in lidar remote sensing technology have demonstrated the capability of accurately mapping LAI and VFP over large areas.
Hao Tang   +5 more
semanticscholar   +5 more sources

ESTIMATES OF THE LEAF AREA INDEX (LAI) USING LAI-2000 AND HEMISPHERICAL PHOTOS IN Eucalyptus PLANTATIONS

open access: yesCiência Florestal, 2014
The objective of this study was to estimate the Leaf Area Index (LAI) by indirect methods in plantations of Eucalyptus clones in two distinct physical-climatic sites, during the dry and rainy periods.
Yhasmin Paiva Rody   +5 more
doaj   +3 more sources

Continuous Leaf Area Index (LAI) Observation in Forests: Validation, Application, and Improvement of LAI-NOS [PDF]

open access: goldForests
The leaf area index (LAI) is one of the core parameters reflecting the growth status of vegetation. The continuous long-term observation of the LAI is key when assessing the dynamic changes in the energy exchange of ecosystems and the vegetation’s response indicators to climate change.
Zhentao Gao   +5 more
openalex   +2 more sources

Estimating leaf area index and coverage of dominant vegetation on an extensive green roof in Syracuse, NY

open access: yesNature-Based Solutions, 2023
Roofs with full or partial coverage of vegetation, also known as green roofs, are perceived to restore ecosystem services in urban areas. Research investigations have been carried out to evaluate green roof performance on reducing stormwater runoff ...
Alexander J. Johnson   +3 more
doaj   +1 more source

Comparison of EPIC-Simulated and MODIS-Derived Leaf Area Index (LAI) across Multiple Spatial Scales. [PDF]

open access: yesRemote Sens (Basel), 2020
Modeled leaf area index (LAI) in conjunction with satellite-derived LAI data streams may be used to support various regional and local scale air quality models for retrospective and future meteorological assessments. The Environmental Policy Integrated Climate (EPIC) model holds promise for providing LAI within a dynamic range for input into climate ...
Iiames JS, Cooter E, Pilant AN, Shao Y.
europepmc   +5 more sources

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