Farmland nutrient management partitioning method based on GIS and RS

Farmland nutrient management partitioning method based on GIS and RS

  • CN 104,834,971 A
  • Filed: 05/07/2015
  • Published: 08/12/2015
  • Est. Priority Date: 05/07/2015
  • Status: Active Application
First Claim
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1. , based on a Soil Nutrients In Farmland management zone method of GIS and RS, it is characterized in that, comprise the following steps:

  • Step one;

    determine Crop Yield Estimation by Remote Optimum temoral, obtains remote sensing image data, according to the growth rhythm of different crops, utilizes crops phenological calendar to choose remote sensing image;

    Step 2;

    utilize Remote Sensing Image Processing Technology to obtain vegetation index;

    the remote sensing image data of the differ ent vegetation obtained in extraction step one, obtain vegetation index according to image processing techniques, choose the vegetation index relevant to yield data;

    Step 3;

    the GPS position information and the soil nutrient data that obtain samples-soil;

    Step 4;

    by the landform pictorial information of collection through Map Scanning Digitization and figure registration, change into digital format and be entered into basic database;

    Step 5;

    by the information unification dimension in the database in the vegetation index obtained in above-mentioned steps two, the GPS position information obtained in step 3 and soil nutrient data and step 4 and the order of magnitude;

    Step 6;

    cluster analysis is carried out to the data after dimension unified in step 5 and the order of magnitude, shows the difference between different classes of middle samples-soil attribute data and data assemblies;

    Step 7;

    the spatial information utilizing the Output rusults of fuzzy clustering to contain, selects interpolation method by Geographic Information System, and geographical space directly embodies the Visualization of the quantitative membership of sampling point soil.

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