Assessment of millet yields and production in northern Burkina Faso using integrated NDVI from the AVHRR.
作者:
M. S. RASMUSSEN,
期刊:
International Journal of Remote Sensing
(Taylor Available online 1992)
卷期:
Volume 13,
issue 18
页码: 3431-3442
ISSN:0143-1161
年代: 1992
DOI:10.1080/01431169208904132
出版商: Taylor & Francis Group
数据来源: Taylor
摘要:
It is possible to assess crop yields at the end of the growing season in a semi-arid environment using data from meteorological satellites. This is the result of a work carried out in northern Burkina Faso. The technique used is based on linear correlation between millet yield and the time integral of the Normalized Difference Vegetation Index (iNDVI) derived from NOAA AVHRR data. In contrast to earlier related studies, the correlation has been established using satellite data extracted exclusively within the agricultural domain. The integration period for the iNDVI correponds to the reproductive phase only of the growing period of millet. Furthermore, iNDVI can also be used to estimate the acreage or the agricultural domain, by the application of a suitable threshold to classify areas into agricultural and non-agricultural domains.
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