Results 1 to 10 of about 47,491 (153)
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 +3 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
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
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
openaire +1 more source
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
Measurement of radiant interception of crop canopies with the LAI-2000 plant canopy analyzer [PDF]
South African Journal of Plant and Soil, 1998 The performance of the plant canopy analyzer (PCA), model LAI-2000 (LI-COR, Lincoln, NE, USA), has been tested in two separate field trials for 18 annual crop and pasture species.
N. Z. Jovanovic, J. G. Annandale
openaire +1 more source
Response of LAI-2000 estimates to changes in plant surface area index in a Scots pine stand [PDF]
Tree Physiology, 1996 We assessed the accuracy with which the LAI-2000 plant canopy analyzer measured changes in leaf area index (LAI) and plant area index (PAI) in a 25-year-old Scots pine (Pinus sylvestris L.) stand. Stand density was 2100 stems ha(-1) and mean tree height was 8.7 m.
Smolander, H., Stenberg, P.
openaire +2 more sources
Spatiotemporal Variation of Leaf Area Index and Its Response to Climatic Factors in Ulanqab City
Shuitu baochi tongbao, 2022 [Objective] The dynamic change of leaf area index (LAI) and its response to climatic factors in Ulanqab City were studied in order to provide a scientific basis for rational resource allocation and ecological conservation.
Huang Yan +4 more
doaj +1 more source
Revista Brasileira de Engenharia Agrícola e Ambiental, 2012 RESUMO Objetivou-se, com o presente trabalho, descrever e testar um método simplificado de baixo custo (IAF-LUX) para estimativa do índice de área foliar (IAF) em comparação com um equipamento comercial (LAI-2000, Li-Cor®).
Maurício A. Coelho Filho +4 more
doaj +1 more source
Evaluation and correction of optically derived leaf area index in different temperate forests
iForest - Biogeosciences and Forestry, 2016 In recent years optical techniques for rapid LAI measurements have been developed, but few studies have been performed to evaluate the accuracy of optical estimation of LAI in mixed deciduous-evergreen forest stands.
Liu Z, Jin G, Zhou M
doaj +1 more source