Assessing the vertical distribution of leaf chlorophyll content in a maize crop

Author

Moulin, S. ; Baret, F. ; Bruguier, N. ; Bataille, C.

Author_Institution

INRA, Unite Climat, Sol, et Environ., Avignon, France

Volume

5

fYear

2003

fDate

2003

Firstpage

3284

Abstract

The characterization of the vertical distribution in a maize crop was investigated. Chlorophyll content measurements were performed on each leaf of several plants along the crop cycle. Those measurements, as well as the surface measurements and the leaf insertion height measurements give the vertical distribution of chlorophyll pigments within the canopy. The chlorophyll content is higher for the middle leaves than for the top and bottom leaves of the plant. The impact of chlorophyll vertical distribution on the leaf reflectance response was investigated. For this purpose, the PROSPECT model was applied on multiple layers, reproducing the observed chlorophyll profile.

Keywords

agriculture; geographic information systems; vegetation mapping; PROSPECT model; canopy; leaf chlorophyll; leaf insertion height measurements; leaf reflectance response; maize crop; surface measurements; Absorption; Biological materials; Conducting materials; Crops; Hyperspectral imaging; Length measurement; Performance evaluation; Pigments; Reflectivity; Veins;

fLanguage

English

Publisher

ieee

Conference_Titel

Geoscience and Remote Sensing Symposium, 2003. IGARSS '03. Proceedings. 2003 IEEE International

Print_ISBN

0-7803-7929-2

Type

conf

DOI

10.1109/IGARSS.2003.1294757

Filename

1294757