Modelling of crop growth conditions and crop yield in Poland using AVHRR-based indices

Autor:	A. Ciolkosz, M. Gruszczynska, W. Kowalik, K. Dabrowska-Zielinska, F. Kogan
Rok vydání:	2002
Předmět:	Hydrology Crop Condition index business.industry Crop yield Yield (finance) Statistics Crop growth General Earth and Planetary Sciences Water supply Vegetation business Mathematics
Zdroj:	International Journal of Remote Sensing. 23:1109-1123
ISSN:	1366-5901 0143-1161
DOI:	10.1080/01431160110070744
Popis:	The application of satellite-derived indices for assessment of crop growth conditions in semi-arid countries is well known. In this paper the authors describe the application of these indices outside semi-arid areas, in Poland, a country with a sufficient water supply. Two indices, Vegetation Condition Index (VCI) and Temperature Condition Index (TCI), were computed for the whole country for each week for a period of 14 years. These indices were correlated with cereal yield anomalies for each of 49 regions of Poland. Two critical periods in crop development were found: early spring (14-16 weeks of the year) and early summer (22-25 weeks) when the state of crop development determines the magnitude of yield. The indices computed for these two periods were used in a yield prediction model. The results were compared with data provided by the Central Statistical Office. The average error of cereal yield estimates for 49 regions was lower than 4%.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::65d3946be66aae09ffe0c18439fb1870 https://doi.org/10.1080/01431160110070744 Zobrazit plný text záznamu