Regional corn mature period prediction method based on time sequence LAI curve integral area
A time series and curve integral technology, applied in the field of agricultural remote sensing, can solve the problem that the spatial resolution and prediction timeliness cannot meet the requirements of precision agriculture, and achieve the effect of overcoming the poor spatial resolution and prediction timeliness.
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[0047] In this embodiment, the technical scheme of the present invention is further described by taking the prediction of maturity period of spring corn in Heilongjiang as an example. The process flow of the 2015 Heilongjiang spring corn maturity prediction method based on the time series LAI curve integral area of this embodiment is as follows figure 1 , figure 2 shown, including:
[0048] Step S1, using the MODerate-resolution Imaging Spectroradiometer (MODIS) images in the study area, combined with the crop type sample points obtained from the ground survey, using the support vector machine classification algorithm, combined with the phenological characteristics of the crops, to construct classification rules, and obtain crops type distribution map, thereby obtaining a spring maize planting area map with a resolution of 500 meters (see attached image 3 ), which will be used as the basis for subsequent regional-scale maturity prediction.
[0049] In step S2, the MODIS...
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