Results 11 to 20 of about 1,958,058 (301)

lai-2015 source code [PDF]

open access: yes, 2015
<p>Custom Scripts for Lai 2015</p ...
Eric W. Triplett (94318)   +5 more
core   +1 more source

Optical instruments for measuring leaf area index in low vegetation : application in Arctic ecosystems [PDF]

open access: yes, 2005
Author Posting. © Ecological Society of America, 2005. This article is posted here by permission of Ecological Society of America for personal use, not for redistribution.
Williams, Mathew   +5 more
core   +1 more source

Ground cover and leaf area index relationship in a grass, legume and crucifer crop

open access: yesPlant, Soil and Environment, 2012
Canopy characterization is essential for describing the interaction of a crop with its environment. The goal of this work was to determine the relationship between leaf area index (LAI) and ground cover (GC) in a grass, a legume and a crucifer crop, and ...
J. Ramirez-Garcia   +2 more
doaj   +1 more source

Comparação de três métodos para estimativa do índice de área foliar em pastos de capim-marandu sob lotação contínua Comparison of three methods for estimating leaf area index of marandu palisadegrass swards under continuous stocking

open access: yesRevista Brasileira de Zootecnia, 2008
Objetivou-se comparar três métodos de determinação do IAF em pastos de capim-marandu (Brachiaria brizantha Hochst. ex A. Rich cv. Marandu) mantidos a quatro alturas de pastejo (10, 20, 30, e 40 cm) por meio de lotação contínua com bovinos de corte. Foram
André Fischer Sbrissia   +1 more
doaj   +1 more source

Leaf Area Index (LAI) trends from 2000 to 2011, Central Yakutia, Siberia [PDF]

open access: yes, 2015
The LAI product used for analysis is the MODIS product for Leaf Area Index - Fraction of Photosynthetically Active Radiation (MOD15A2) (See also the "Source data set" link).
Grau, Thomas   +15 more
core   +1 more source

COMPARING OPTICALAND DIRECT METHODS FOR LEAFAREA INDEX DETERMINATION IN A MAIZE CROP

open access: yesJournal of Agricultural Engineering, 2010
Leaf area index (LAI) is a crucial variable in the modelling of many hydrological processes. Destructive sampling of LAI is extremely time-consuming, thus not suitable for monitoring temporal/spatial variations of the variable.
Arianna Facchi   +3 more
doaj   +1 more source

The Impact of Non-Photosynthetic Vegetation on LAI Estimation by NDVI in Mixed Grassland

open access: yesRemote Sensing, 2020
Leaf area index (LAI) is widely used for algorithms and modelling in the field of ecology and land surface processes. At a global scale, normalized difference vegetation index (NDVI) products generated by different remote sensing satellites, have ...
Dandan Xu, Deshuai An, Xulin Guo
doaj   +1 more source

Validation of MODIS and GEOV1 fPAR Products in a Boreal Forest Site in Finland

open access: yesRemote Sensing, 2015
Remote sensing of the fraction of absorbed Photosynthetically Active Radiation (fPAR) has become a timely option to monitor forest productivity. However, only a few studies have had ground reference fPAR datasets containing both forest canopy and ...
Titta Majasalmi   +3 more
doaj   +1 more source

The spatiotemporal response of photosynthetic accumulation per leaf area to climate change on alpine grassland

open access: yesGlobal Ecology and Conservation, 2023
Characterizing the photosynthetic capacity of grassland is essential for exploring the carbon cycle under climate change. However, little research has been conducted to date on photosynthetic accumulation per leaf area (NPP/LAI) in spatial and temporal ...
Xiaoning Zhang   +9 more
doaj   +1 more source

A comparison of optical and direct methods for monitoring the seasonal dynamics of leaf area index in deciduous forests

open access: yesSilva Fennica, 2001
During the 1996 growing season the seasonal dynamics of the Leaf Area Index (LAI) were determined by 3 different methods in two forest types: a mixed oak (Quercus robur L.) – beech (Fagus sylvatica L.) stand and an ash dominated (Fraxinus excelsior L.)
Mussche, Sylvie   +5 more
doaj   +1 more source

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