Results 1 to 10 of about 47,175 (138)
Remote Sensing, 2021 As a widely used ground-based optical instrument, the LAI-2000 or LAI-2200 plant canopy analyzer (PCA) (Li-Cor, Inc., Lincoln, NE) is designed to measure the plant effective leaf area index (Le) by measuring the canopy gap fraction at several limited or ...
Jun Geng +14 more
doaj +5 more sources
Analyzing the Driving Forces of Vegetation Change in the Yellow River Basin: Comprehensive Assessment of Natural Social and Economic Factors [PDF]
PlantsLeaf area index (LAI) is a key vegetation structural parameter widely used to quantify vegetation dynamics. A thorough understanding of its spatiotemporal characteristics and driving mechanisms is essential for sustainable ecosystem management.
Fei Gao +5 more
doaj +2 more sources
Measurement of Oil Palm LAI by Manual and LAI-2000 Method [PDF]
Asian Journal of Scientific Research, 2007 In this study, accurate Leaf Area Index (LAI) of different palm age groups were determined by manual (direct) method. Optical methods for quantifying variation in LAI of different palm ages were evaluated using LAI-2000 Plant Canopy Analyser (PCA) as an indirect method.
Awal, Md. Abdul, Wan Ismail, Wan Ishak
exaly +2 more sources
ESTIMATIVAS DO ÍNDICE DE ÁREA FOLIAR UTILIZANDO O LAI-2000 E FOTOGRAFIAS HEMISFÉRICAS EM PLANTIOS DE EUCALIPTO [PDF]
Ciência Florestal, 2014 O objetivo deste estudo foi estimar o Índice de Área Foliar (IAF) por métodos indiretos em plantios clonais de eucalipto em dois distintos sítios físico-climáticos, durante as estações seca e chuvosa.
Yhasmin Paiva Rody +5 more
doaj +2 more sources
Agricultural and Forest Meteorology, 2008 Validation of Leaf Area Index (LAI) derived from moderate resolution remote sensing observations generally involves optical technique to measure ground LAI. As the current validation datasets are derived using multiple optical retrieval techniques, assessment of the consistency between these techniques is required.
N V Shabanov +2 more
exaly +4 more sources
Biologia Plantarum, 2000 The accuracy of LAI-2000 Plant Canopy Analyzer for leaf (LAI) and plant (PAI) area indexes measurements was tested in 20-year-old Norway spruce stand using the reduction of canopy biomass. Needle and branch areas were reduced progressively upward every one meter.
Radek Pokorny, Michal V Marek
exaly +2 more sources
Ciência 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
Forest Ecology and Management, 2007 Abstract Leaf area index (LAI) is one of the most frequently used parameters for the analysis of canopy structure and it has also been shown to be an important structural characteristic of the forest ecosystem and forest productivity. The objectives of this study were: (1) to calibrate optical estimates of PAI (plant area index) from the LAI-2000 ...
Julio Calvo-Alvarado
exaly +3 more sources
Response of change of wheat LAI measured with LAI-2000 to the radiance [PDF]
Acta Ecologica Sinica, 2014 王龑 WangYan +3 more
exaly +2 more sources
Spatiotemporally consistent global dataset of the GIMMS leaf area index (GIMMS LAI4g) from 1982 to 2020 [PDF]
Earth System Science Data, 2023 Leaf area index (LAI) with an explicit biophysical meaning is a critical variable to characterize terrestrial ecosystems. Long-term global datasets of LAI have served as fundamental data support for monitoring vegetation dynamics and exploring its ...
S. Cao +33 more
doaj +1 more source