Crop monitoring and yield forecasting can be nowadays carried out at regional/national scale through quite relatively rapid, effective, non-desctructive, low cost methods. Tools giving timely information on crop status make it possible the application of integrated nutrients and pest management in an early warning and effective agronomic strategy. Indirect measurements based on optical instruments, such as LAI2000, allow to examine rice crops in a rapid way giving a direct estimation of LAI and, indirectly, crop production. Moreover new generation satellite data viewing the entire Earthsurface every 1-2 days, such as MODIS (Moderate Resolution Imaging Spectroradiometer) could be a source of data low cost acquirable and usable in regional monitoring activities. Field or satellite crop data acquisition through non desctructive and rapid tools can be useful for different topics as parameterisation-validation, integration-forcing processes for existing models or implementing new simple simulation models. The present paper aims at evaluating the performances of a simple simulation model based on Light Use Efficiency (LUE) in altenative conditions of use MODIS or LAI2000 field data. During 2003 field experiment and data collection on rice production were carried out at regional scale and MODIS images were collected for the same areas together with air temperature and solar radiation required by the simple simulation model. The sensitivity analysis of the simple model was carried out and the outputs were also compared with the ones obtained with a more complex model. The comparison of different methods performance is presented and a parsimonious use of simple model and low cost technology is discussed.
Crop monitoring and yield forecasting through field indirect measurements, satellite imagery and simple simulation model / M.Boschetti, S.Bocchi, R.Confalonieri, P.A.Brivio - In: Proceedings of the International Conference on Scientific approach for rice research / University of Il Cairo. - Alexandria, Egypt : Univ. Cairo, 2004. - pp. 12-14 (( Intervento presentato al 1. convegno International Conference on Scientific approach for rice research tenutosi a Alexandria, Egypt nel 2004.
|Titolo:||Crop monitoring and yield forecasting through field indirect measurements, satellite imagery and simple simulation model|
BOSCHETTI, MIRCO (Primo)
BOCCHI, STEFANO (Secondo)
|Parole Chiave:||Keywords: rice monitoring, modeling, remote sensing, low cost technology.|
|Settore Scientifico Disciplinare:||Settore AGR/02 - Agronomia e Coltivazioni Erbacee|
|Data di pubblicazione:||2004|
|Tipologia:||Book Part (author)|
|Appare nelle tipologie:||03 - Contributo in volume|