@InProceedings{HamadaPonzGonç:2015:ApÍnEs,
author = "Hamada, Emilia and Ponzoni, Fl{\'a}vio Jorge and
Gon{\c{c}}alves, Renata Ribeiro do Valle",
affiliation = "{} and {Instituto Nacional de Pesquisas Espaciais (INPE)}",
title = "Aplica{\c{c}}{\~a}o de {\'{\i}}ndices espectrais na
avalia{\c{c}}{\~a}o do aumento da concentra{\c{c}}{\~a}o de
di{\'o}xido de carbono atmosf{\'e}rico em cafeeiro",
booktitle = "Anais...",
year = "2015",
editor = "Gherardi, Douglas Francisco Marcolino and Arag{\~a}o, Luiz
Eduardo Oliveira e Cruz de",
pages = "2759--2766",
organization = "Simp{\'o}sio Brasileiro de Sensoriamento Remoto, 17. (SBSR)",
publisher = "Instituto Nacional de Pesquisas Espaciais (INPE)",
address = "S{\~a}o Jos{\'e} dos Campos",
abstract = "Human influence on the climate system is clear, and recent
anthropogenic emissions of greenhouse gases are the highest in
history. In addition, recent climate change have had widespread
impacts on human and natural system. The morphology and the
physiological processes of plants can be altered by increasing the
atmospheric carbon dioxide (CO2) concentration. The objective of
this study was to evaluate the spectral indexes of individual
leaves of coffee cv. Obat{\~a} IAC 1669-20 under the effect of
increased atmospheric CO2 concentration. Samples of coffee leaves
were collected in August and in December 2013, from plants
cultivated in the FACE experiment ({"}Free Air CO2 Enrichment{"}),
located at Embrapa Environment, Jaguari{\'u}na - SP. Seven
spectral index were evaluated. The spectral propriety of leaves
collected in August detected the effect of CO2 enriched
environment by adopting the PSSRa and PSSRb (Pigment Specific
Simple Ratio, chlorophyll a and b, respectively) and NDVI
(Normalized Difference Vegetation Index), at 1 % of significance.
However, the same was not observed in leaves collected in December
and the effect of CO2 enriched environment was not significant.
Additional studies are been conducted in order to better
understanding of the interaction process between the spectral
properties of individual leaves and the enriched CO2 concentration
environment.",
conference-location = "Jo{\~a}o Pessoa",
conference-year = "25-29 abr. 2015",
isbn = "978-85-17-0076-8",
label = "546",
language = "pt",
organisation = "Instituto Nacional de Pesquisas Espaciais (INPE)",
ibi = "8JMKD3MGP6W34M/3JM4AC4",
url = "http://urlib.net/ibi/8JMKD3MGP6W34M/3JM4AC4",
targetfile = "p0546.pdf",
type = "Mudan{\c{c}}as clim{\'a}ticas",
urlaccessdate = "16 jun. 2024"
}