Scientia Agricultura Sinica ›› 2005, Vol. 38 ›› Issue (06): 1142-1147 .

• TILLAGE & CULTIVATION·PHYSIOLOGY & ECOLOGY • Previous Articles     Next Articles

Knowledge Model and GIS-Based Crop Potential Productivity Evaluation

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  1. 南京农大农业部作物生长调控重点开放实验室
  • Received:2004-06-25 Revised:1900-01-01 Online:2005-06-10 Published:2005-06-10

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Abstract: The concept of knowledge model was introduced, and the knowledge model of crop potential productivity estimation has been set up by the factor attenuation of solar radiation, temperature, water, soil, fertilization, irrigation and the social factor. Based on the support of MapInfo 5.5 systemic development platform and knowledge model, with MapInfo development language including MapBasic and VB6.0, an analysis system on crop potential productivity was developed by integrating the knowledge engineering and database. The computer aid decision of crop potential productivity has been realized. An application example in Jiangsu province was provided, by comparing to the practical yield per unit area, the potential yield per unit area, potential coefficiency, potential productivity were analysized qualitatively, the regional superiority of crop production was decided.

Key words: Knowledge model, GIS, Crop, Potential productivity, Evaluation

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