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Abstract

The objective of the research presented here is to obtain crop yield forecasts based on the information of NOAA- AVHRR/NDVI and CORINE land cover data. The methodology described in Genovese et al. (2001) consists of extracting yield indicators from CNDVI (CORINE-NDVI) time series at a regional scale. In Genovese et al. (2001), a preliminary study in Spain for a four year span (1995-1998) has shown that indicators extracted from the CNDVI profiles can be more closely related to crop yield performances than indicators based on simple NDVI profiles. To prove the validity of this approach, a more complete experiment was realised in France for the same period. Linear regressions were calculated using regional CNDVI-based indicators versus regional wheat yield data (EUROSTAT NEW CRONOS database). A French national wheat yield forecast was then derived by aggregation of regional results. The validity of the results confirms the advantages of such an approach. The combination of a CNDVI-based indicator with the linear trend observed in yields between 1975 and 1997 led to very good regression criteria (coefficient of determination higher than 86%) and allowed a satisfying prediction of wheat yields.

The paper was presented at the conference session on Remote Sensing for Agriculture, Ecosystems, and Hydrology III (Conference 4542). The conference organisers' website is at: http://spie.org/

Additional information

Authors: VIGNOLLES C, European Commission, Joint Research Centre, Space Applications Institute, Agriculture and Regional Information Systems, Ispra (IT);GENOVESE G, European Commission, Joint Research Centre, Space Applications Institute, Agriculture and Regional Information Systems, Ispra (IT);NÈGRE T, European Commission, Joint Research Centre, Space Applications Institute, Agriculture and Regional Information Systems, Ispra (IT)
Bibliographic Reference: An oral report given at: International Symposium on Remote Sensing Organised by: SPIE, International Society for Optical Engineering Held at: Toulouse (FR), 17-21 September 2001
Availability: Published in: Proceedings of SPIE, Vol 4542 (2002)
Record Number: 200214704 / Last updated on: 2002-05-15
Category: PUBLICATION
Original language: en
Available languages: en