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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

Inactive Publication Date: 2005-12-07
BEIJING RES CENT FOR INFORMATION TECH & AGRI
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Problems solved by technology

In order to achieve this goal, this method mainly solves the selection of main influencing factors for real-time and large-scale wheat quality monitoring and forecasting, the establishment of wheat quality monitoring model based on agronomic knowledge, and the realization of remote sensing of quality influencing factors, including :

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  • Method for realizing wheat behavior monitoring and forecasting by utilizing remote sensing and geographical information system technology
  • Method for realizing wheat behavior monitoring and forecasting by utilizing remote sensing and geographical information system technology
  • Method for realizing wheat behavior monitoring and forecasting by utilizing remote sensing and geographical information system technology

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Embodiment Construction

[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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Abstract

This invention relates to a method for monitoring and forecasting wheat quality by the remote sensing and geography information system technology, which applies a combined method to monitor the key factors for wheat quality, obstacle factors of plant diseases and insect pests, lodging and serious environment of key growing period and the wheat growing situation, sets up the coherent relations of remote sensing parameters of main factors for remote sensing parameters of main factors for wheat quality, its growing situation and in nutrition state, links the remote sensing model and agronomic model to construct a wheat quality remote sensing monitor linking model and utilizes the image data and geography information system data in different growing periods to realize forecast for its quality based on a quality evaluation model.

Description

technical field [0001] The invention relates to a technical scheme for monitoring and forecasting wheat quality by using remote sensing and geographic information system technology, and belongs to the field of information technology. It can be directly applied to wheat cultivation management, wheat guiding purchase and sorting and processing. Background technique [0002] Wheat is the main food crop in my country. According to market changes and the needs of joining WTO, my country's agricultural planting structure is undergoing substantial adjustments. Wheat production has begun to shift from a purely high-yield model to a high-quality, dedicated and efficient one. The quality of wheat grains is determined by the characteristics of the variety and the cultivation environment. Foreign developed countries mainly select varieties with high content of high-quality biochemical components (pre-production), adopt relatively unified management measures for large-scale planting (in...

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Application Information

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IPC IPC(8): G01N35/00
Inventor 王纪华赵春江潘瑜春刘良云黄文江宋晓宇
Owner BEIJING RES CENT FOR INFORMATION TECH & AGRI
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