Method for realizing wheat behavior monitoring and forecasting by utilizing remote sensing and geographical information system technology
A geographic information system and wheat quality technology, applied in the information field, achieves obvious economic benefits and social effects, and reduces application costs
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[0024] Now in conjunction with example the present invention is further described, promptly utilizes TM satellite remote sensing image to carry out wheat quality monitoring forecast to Beijing suburb:
[0025] First, three phases of TM remote sensing images were obtained at the heading stage, filling stage and milk maturity stage of winter wheat, and the wheat planting area was extracted by using the normalized difference vegetation index at the heading stage and the filling stage and the past wheat planting area distribution and land use information.
[0026] Secondly, the fifth band of TM (TM5) was used to invert the moisture of wheat plants, the sixth band of TM (TM6) was used to invert the temperature of wheat canopy, and the visible light and near-infrared bands (TM2, TM3, TM4) were used to invert the temperature of wheat plants. Indicators such as the normalized difference vegetation index of growth and biochemical indicators of wheat plants such as the carbon and nitroge...
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