Results 1 to 10 of about 8,911 (116)

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

Plants, 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, Seyed Mohammad Nasir Mousavi, Csaba Bojtor, Péter Ragán, János Nagy, Attila Vad, Árpád Illés   +6 more
doaj   +2 more sources

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

Sensors, 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, Ermes Movedi, Davide Coduto, Simone Parisi, Lucio Brancadoro, Valentina Pagani, Tommaso Guarneri, Roberto Confalonieri   +7 more
doaj   +2 more sources

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

Sensors, 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, Sigfredo Fuentes, Samuel Ortega-Farias, Jaime Gonzalez-Talice, Jose Antonio Yuri   +4 more
doaj   +2 more sources

Using the Negative Soil Adjustment Factor of Soil Adjusted Vegetation Index (SAVI) to Resist Saturation Effects and Estimate Leaf Area Index (LAI) in Dense Vegetation Areas. [PDF]

Sensors (Basel), 2021
Zhen Z, Chen S, Yin T, Chavanon E, Lauret N, Guilleux J, Henke M, Qin W, Cao L, Li J, Lu P, Gastellu-Etchegorry JP.   +11 more
europepmc   +2 more sources

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

Nature-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, Cliff I. Davidson, Evan Cibelli, Anna Wojcik   +3 more
doaj   +1 more source

Sentinel Image to Estimate Industrial Tomato Leaf Area Index

Brazilian Archives of Biology and Technology, 2023
The Leaf Area Index (LAI) is one of the main physiological parameters of the plant related to transpiration, productivity and rainfall interception. Among the methods to determine the LAI, the use of remote sensing that estimates the LAI through image ...
Mylena Marques Dorneles, Gustavo Henrique Mendes Brito, Ivandro José de Freitas Rocha, Sueli Martins de Freitas Alves   +3 more
doaj   +1 more source

Comparison of LiDAR-based Models for True Leaf Area Index and Effective Leaf Area Index Estimation in Young Beech Forests

Acta Universitatis Agriculturae et Silviculturae Mendelianae Brunensis, 2020
The leaf area index (LAI) is one of the most common leaf area and canopy structure quantifiers. Direct LAI measurement and determination of canopy characteristics in larger areas is unrealistic due to the large number of measurements required to create ...
Zdeněk Patočka, Kateřina Novosadová, Pavel Haninec, Radek Pokorný, Tomáš Mikita, Martin Klimánek   +5 more
doaj   +1 more source

Defoliation intensity and leaf area index recovery in defoliated swards: implications for forage accumulation

Scientia Agricola, 2020
: This study evaluated the leaf area index (LAI) recovery mechanisms and forage accumulation rates on the regrowth of different grass species subjected to different defoliation intensities. For that purpose, plots of Pennisetum clandestinum (kikuyugrass),
Clóvis David Medeiros Martins, Daniel Schmitt, Paulo Gonçalves Duchini, Tiago Miqueloto, André Fischer Sbrissia   +4 more
doaj   +1 more source

Retrieval and validation of vertical LAI profile derived from airborne and spaceborne LiDAR data at a deciduous needleleaf forest site

GIScience & Remote Sensing, 2023
Leaf area index (LAI) is defined as one half of the total green leaf area per unit ground surface area. Its vertical profile is critical for understanding the remote sensing radiative transfer processes.
Yao Wang, Hongliang Fang, Yinghui Zhang, Sijia Li, Yong Pang, Tian Ma, Yu Li   +6 more
doaj   +1 more source

Estimate of leaf area index in an old-growth mixed broadleaved-Korean pine forest in northeastern China. [PDF]

PLoS ONE, 2012
Leaf area index (LAI) is an important variable in the study of forest ecosystem processes, but very few studies are designed to monitor LAI and the seasonal variability in a mixed forest using non-destructive sampling. In this study, first, true LAI from
Zhili Liu, Guangze Jin, Yujiao Qi
doaj   +1 more source