Fuzzy Mathematics Model of Soil Nutrient Losses Under Semi-trapezoid Subordinate Function: A Case Study of Southern Mountainous Area in Anhui

doi:10.11924/j.issn.1000-6850.casb16040116

Abstract

Abstract: The study aims to analyze soil nutrient losses level according to the data and information from soil testing in southern mountainous area in Anhui, and provide reference for soil nutrient management. Samples were selected under directed sampling and fuzzy mathematics model was built by semi-trapezoid subordinate function, and combined with variation coefficient method, soil nutrient losses level was calculated in different land features. The results showed that a fuzzy mathematics model was built on the soil nutrients distribution situation generated by simulation software MATLAB, and the model indicated that soil nutrient losses situation was most serious in hilly land with sloping fields. The results were closed to soil nutrient condition. The study verified the practicability of fuzzy mathematics model in the study of soil nutrient losses of farmland in mountainous area, which could assess soil nutrient losses level and provide theoretical foundation for scientific fertilization and soil protection.

CLC Number:

S126

汪忠国,孙怡川,陈蕾 and . Fuzzy Mathematics Model of Soil Nutrient Losses Under Semi-trapezoid Subordinate Function: A Case Study of Southern Mountainous Area in Anhui[J]. Chinese Agricultural Science Bulletin, 2017, 33(6): 139-143.

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