Results 1 to 10 of about 9,141 (253)

Estimating Leaf Area Index (LAI) in Vineyards Using the PocketLAI Smart-App [PDF]

open access: yesSensors, 2016
Estimating leaf area index (LAI) of Vitis vinifera using indirect methods involves some critical issues, related to its discontinuous and non-homogeneous canopy.
Francesca Orlando   +7 more
doaj   +6 more sources

Analysis of Nutrient-Specific Response of Maize Hybrids in Relation to Leaf Area Index (LAI) and Remote Sensing [PDF]

open access: yesPlants, 2022
Leaf area index (LAI) indicates the leaf area per ground surface area occupied by a crop. Various methods are used to measure LAI, which is unitless and varies according to species and environmental conditions.
Atala Szabó   +6 more
doaj   +2 more sources

Estimation of Cotton Leaf Area Index (LAI) Based on Spectral Transformation and Vegetation Index [PDF]

open access: yesRemote Sensing, 2021
Unmanned aerial vehicles (UAV) has been increasingly applied to crop growth monitoring due to their advantages, such as their rapid and repetitive capture ability, high resolution, and low cost.
Yiru Ma   +7 more
doaj   +2 more sources

A review on the leaf area index (LAI) in vertical greening systems

open access: yesBuilding and Environment, 2023
Abstract: The leaf area index (LAI) is a key dynamic parameter in Vertical Greening Systems (VGS). It quantifies the total amount of leaf area in the canopy and largely determines the extent of co-benefits of VGS. Whereas many studies on VGS discuss the importance of the LAI, only few elaborate on the parameter itself, how it is determined and what the
Steve Vanlanduit, Anouk de Bock
exaly   +4 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 drone and set five schemes (O (0°), T15 (15°), T30 (30°), OT15 (0° and 15°) and OT30 (0° and 30 ...
, Zhenbang Hao, Xiong Yao
exaly   +3 more sources

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

open access: yesReviews of Geophysics, 2019
AbstractLeaf 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 Earth system modeling studies. This overview provides a comprehensive analysis of LAI field
Gabriela Schaepman-Strub   +2 more
exaly   +5 more sources

Retrieving Leaf Area Index (LAI) Using Remote Sensing: Theories, Methods and Sensors [PDF]

open access: yesSensors, 2009
The ability to accurately and rapidly acquire leaf area index (LAI) is an indispensable component of process-based ecological research facilitating the understanding of gas-vegetation exchange phenomenon at an array of spatial scales from the leaf to the landscape.
L Monika Moskal   +2 more
exaly   +4 more sources

Digital Cover Photography for Estimating Leaf Area Index (LAI) in Apple Trees Using a Variable Light Extinction Coefficient [PDF]

open access: yesSensors, 2015
Leaf area index (LAI) is one of the key biophysical variables required for crop modeling. Direct LAI measurements are time consuming and difficult to obtain for experimental and commercial fruit orchards.
Carlos Poblete-Echeverría   +4 more
doaj   +2 more sources

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

open access: yesForests
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.
Ainong Li   +2 more
exaly   +2 more sources

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