Semideciduous Seasonal Forest Production of Leaves and Deciduousness in Function of the Water Balance, LAI, and NDVI
Joint Authors
Ribeiro, Juliana Leite
Viana, João Herbert Moreira
da Costa, Thomaz Correa e Castro
Source
International Journal of Ecology
Issue
Vol. 2014, Issue 2014 (31 Dec. 2014), pp.1-15, 15 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2014-03-30
Country of Publication
Egypt
No. of Pages
15
Main Subjects
Natural & Life Sciences (Multidisciplinary)
Biology
Abstract EN
This study investigated the relationship between leaf production, litterfall, water balance, Leaf Area Index (LAI), and Normalized Difference Vegetation Index (NDVI) in semideciduous forests.
The goal was to model this phenomenon to obtain the estimates of this component as an additional compartment of the ecosystem carbon sink.
The tests were conducted in eight semideciduous forest fragments.
Twenty-four permanent plots were monitored monthly and LAI measurements and weighing of litterfall deposited in nets were conducted for a period of thirteen months.
In this period, Landsat 5 and IRS satellite images were obtained and processed for generation of NDVI.
The water balance was calculated for each day.
The relationship among the variables “leaf dry weight,” “LAI,” “NDVI,” and “water balance” was verified and a regression model was built and evaluated.
The deciduous phenomenon can be explained by hydric balance, and LAI and NDVI are ancillary variables.
The tendency of the variables in the period of 13 months was explained by quadratic functions.
The varied behavior among the monitoring sites helped to know differences in the deposition of leaves.
This study showed that only the leaf component of the litterfall of a semideciduous forest in tropical climate can capture 4 to 8 Mg·ha−1·yr−1 of CO2 and this amount can be estimated using climate, biophysics, and vegetation index variables.
American Psychological Association (APA)
da Costa, Thomaz Correa e Castro& Viana, João Herbert Moreira& Ribeiro, Juliana Leite. 2014. Semideciduous Seasonal Forest Production of Leaves and Deciduousness in Function of the Water Balance, LAI, and NDVI. International Journal of Ecology،Vol. 2014, no. 2014, pp.1-15.
https://search.emarefa.net/detail/BIM-508371
Modern Language Association (MLA)
da Costa, Thomaz Correa e Castro…[et al.]. Semideciduous Seasonal Forest Production of Leaves and Deciduousness in Function of the Water Balance, LAI, and NDVI. International Journal of Ecology No. 2014 (2014), pp.1-15.
https://search.emarefa.net/detail/BIM-508371
American Medical Association (AMA)
da Costa, Thomaz Correa e Castro& Viana, João Herbert Moreira& Ribeiro, Juliana Leite. Semideciduous Seasonal Forest Production of Leaves and Deciduousness in Function of the Water Balance, LAI, and NDVI. International Journal of Ecology. 2014. Vol. 2014, no. 2014, pp.1-15.
https://search.emarefa.net/detail/BIM-508371
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-508371