Results 1 to 10 of about 169,947 (260)
Multitemporal Monitoring of Plant Area Index in the Valencia Rice District with PocketLAI [PDF]
Remote Sensing, 2016 Leaf area index (LAI) is a key biophysical parameter used to determine foliage cover and crop growth in environmental studies in order to assess crop yield. Frequently, plant canopy analyzers (LAI-2000) and digital cameras for hemispherical photography (DHP) are used for indirect effective plant area index (PAIeff) estimates.
Manuel Campos-Taberner +2 more
exaly +7 more sources
Estimation of Leaf Area Index and Plant Area Index of a Submerged Macrophyte Canopy Using Digital Photography [PDF]
PLoS ONE, 2012 Non-destructive estimation using digital cameras is a common approach for estimating leaf area index (LAI) of terrestrial vegetation. However, no attempt has been made so far to develop non-destructive approaches to LAI estimation for aquatic vegetation.
Dehua Zhao +4 more
openaire +4 more sources
Stage 1 Validation of Plant Area Index From the Global Ecosystem Dynamics Investigation [PDF]
IEEE Geoscience and Remote Sensing Letters, 2023 The Global Ecosystem Dynamics Investigation (GEDI) aims to provide improved characterization of forest structure, and plant area index (PAI) is one of many variables provided in the official GEDI Level 2B (L2B) product suite. However, since release, few quantitative validation studies have been conducted.
Luke A Brown +2 more
exaly +4 more sources
Local Illumination Influence on Vegetation Indices and Plant Area Index (PAI) Relationships [PDF]
Remote Sensing, 2014 Relationships between biophysical parameters and radiometric data have been tested and evaluated by several professionals using empirical and/or physical approaches. Remote sensing data collected from airborne or orbital platforms are, of course, influenced by different factors, such as illumination/observation geometry (data collection geometry ...
Flávio Jorge Ponzoni +4 more
openaire +3 more sources
Modelling Plant Responses to Elevated CO2: How Important is Leaf Area Index? [PDF]
Annals of Botany, 2004 The problem of increasing CO(2) concentration [CO(2)] and associated climate change has generated much interest in modelling effects of [CO(2)] on plants. While variation in growth and productivity is closely related to the amount of intercepted radiation, largely determined by leaf area index (LAI), effects of elevated [CO(2)] on growth are primarily ...
Frank Ewert
exaly +3 more sources
Sustainability Index of Solar Power Plants in Remote Areas in Indonesia [PDF]
Technology and Economics of Smart Grids and Sustainable Energy, 2021 Energy is an inseparable component in human life in every aspect. However, many regions cannot utilize energy sources to support their daily activities, so there are several breakthroughs made by the government, including the construction of solar power plants in remote areas.
null Dwipayana +2 more
openaire +1 more source
Simulation of Planted Area Index (PAI) for Crop Spacing Methods in Plant Factory [PDF]
Journal of Biosystems Engineering, 2011 Various crop spacing methods have been implemented so far for the greenhouse and plant factory applications. However, there is no generally accepted parameter for evaluation of plant spacing efficiency in plant production system. In this study, `Planted Area Index` (PAI) of a spacing method is defined as the ratio of the planted area in the field to ...
Joon-Yong Kim +4 more
openaire +1 more source
Contribution of lianas to plant area index and canopy structure in a Panamanian forest [PDF]
Ecology, 2016 AbstractLianas are an important component of tropical forests, where they reduce tree growth, fecundity, and survival. Competition for light from lianas may be intense; however, the amount of light that lianas intercept is poorly understood. We used a large‐scale liana‐removal experiment to quantify light interception by lianas in a Panamanian ...
RodrÃguez-Ronderos, M. Elizabeth +4 more
openaire +2 more sources
Map-Making of Plant Biomass and Leaf Area Index for Management of Protected Areas
Aliso, 2000 An inventory of the vegetation types of Castelporziano Estate (Rome), including examples of Mediterranean ecosystems in excellent preserved condition, was compiled. Because Leaf Area Index (LAI) changed with forest structure and developmental stages, maximum LAI provided a good estimate of maximum biomass accumulation. Plant biomass estimation, ranging
GRATANI, Loretta, CRESCENTE, MARIA FIORE
openaire +3 more sources
A new method for estimating the leaf area index of cucumber and tomato plants [PDF]
Horticultura Brasileira, 2003 Non-destructive methods of leaf area measurement are useful for small plant populations, such as experiments with potted plants, and allow the measurement of the same plant several times during the growing period. A methodology was developed to estimate the leaf area index (LAI) of cucumber and tomato plants through the evaluation of the leaf area ...
Blanco, Flávio Favaro +1 more
openaire +3 more sources