半梯形隶属函数下土壤养分流失的模糊数学模型——以皖南山区为例
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摘要
研究旨在通过皖南山区土壤检测报告给定的一些数据和信息分析养分流失程度,为合理的土壤养分管理提供可靠依据,采用指导性抽样选取样本,利用半梯形隶属度函数构建模糊数学模型,结合变异系数法,计算出不同地形类别的土壤养分流失程度。研究结果表明:以MATLAB仿真软件生成土壤养分的分布情况为直观依据,构建模糊数学模型发现多坡地的丘陵区域土壤养分流失最为严重。该模型的分析结果更贴近该地区土壤养分现状。研究验证了模糊数学模型在山区耕地土壤养分流失研究中的实用性。该模型能够很好的评估出土壤养分流失程度,为科学施肥护壤提供了理论依据。
The study aims to analyze soil nutrient losses level according to the data and information from soiltesting in southern mountainous area in Anhui, and provide reference for soil nutrient management. Sampleswere selected under directed sampling and fuzzy mathematics model was built by semi-trapezoid subordinatefunction, and combined with variation coefficient method, soil nutrient losses level was calculated in differentland features. The results showed that a fuzzy mathematics model was built on the soil nutrients distributionsituation generated by simulation software MATLAB, and the model indicated that soil nutrient losses situationwas most serious in hilly land with sloping fields. The results were closed to soil nutrient condition. The studyverified the practicability of fuzzy mathematics model in the study of soil nutrient losses of farmland inmountainous area, which could assess soil nutrient losses level and provide theoretical foundation for scientificfertilization and soil protection.
The study aims to analyze soil nutrient losses level according to the data and information from soiltesting in southern mountainous area in Anhui, and provide reference for soil nutrient management. Sampleswere selected under directed sampling and fuzzy mathematics model was built by semi-trapezoid subordinatefunction, and combined with variation coefficient method, soil nutrient losses level was calculated in differentland features. The results showed that a fuzzy mathematics model was built on the soil nutrients distributionsituation generated by simulation software MATLAB, and the model indicated that soil nutrient losses situationwas most serious in hilly land with sloping fields. The results were closed to soil nutrient condition. The studyverified the practicability of fuzzy mathematics model in the study of soil nutrient losses of farmland inmountainous area, which could assess soil nutrient losses level and provide theoretical foundation for scientificfertilization and soil protection.
引文
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[20]张铁男,李晶蕾.对多级模糊综合评价方法的应用研究[J].哈尔滨工程大学学报,2002,23(3):132-135.
[2]郭晓朦,何丙辉,秦伟,等.不同坡长条件扰动地表下土壤入渗与贮水特征[J].水土保持学报,2015,2:037.
[3]张展羽,左长清,刘玉含,等.水土保持综合措施对红壤坡地养分流失作用过程研究[J].农业工程学报,2008,24(11):41-45.
[4]张慧敏,徐秋桐,章明奎.水土保持措施降低河网平原区果园地表氮磷铜流失[J].农业工程学报,2014,30(2):132-138.
[5]刘国顺,常栋,叶协锋,等.基于GIS的缓坡烟田土壤养分空间变异研究[J].生态学报,2013(8):2586-2595.
[6]朱秋莲,邢肖毅,张宏,等.黄土丘陵沟壑区不同植被区土壤生态化学计量特征[J].生态学报,2013,33(15).
[7]万家山,吴云志,张友华,等.基于LM-BP神经网络的耕地土壤养分等级划分模型—以皖南山区为例[J].中国农学通报,2015,26:043.
[8]Rowell D L.Soil science:Methods&applications[M].Routledge,2014:131-255.
[9]Tan K H.Soil sampling,preparation,and analysis[M].CRC press,2005:23-40.
[10]刘建红,朱文泉.耕地变化空间抽样调查方案的精度与效率分析[J].农业工程学报2010,26(10):331-336.
[11]胡春玲,胡学钢,吕刚.一种贝叶斯网络结构学习的混合随机抽样算法[J].计算机工程,2014,40(5):238-242.
[12]Klir G,Yuan B.Fuzzy sets and fuzzy logic[M].New Jersey:Prentice Hall,1995:14-18.
[13]Jiang X,Yi Z,Lv J C.Fuzzy SVM with a new fuzzy membership function[J].Neural Computing&Applications,2006,15(3-4):268-276.
[14]Zhemin G.Design of the water quality assessment management platform based on fuzzy analysis[D].Zhejiang:Zhejiang University of Technology,2014:17-20.
[15]吉志红,陈敏,张心令.基于GIS的三门峡市苹果种植气候适宜性区划[J].气象与环境科学,2015,1:009.
[16]罗水莲,马利群,谢烈平.模糊综合评判在拉萨地温开发地质环境评价中的应用[J].四川地质学报,2014,34(4):632-636.
[17]Fisher P,Tate N J.Modelling class uncertainty in the geodemographic Output Area Classification[J].Environment and Planning B abstract,2015,42(3):541-563.
[18]Mezosi G,Blanka V,Bata T,et al.Estimation of regional differences in wind erosion sensitivity in Hungary[J].Natural Hazards and Earth System Sciences,2015,15(1):97.
[19]Liu Z,Gao L,Liu N,et al.A Comparative Analysis of Environmental Quality Assessment Methods—a Case Study of Heavy Metal-Contaminated Soil[C]//2015 International Conference on Materials,Environmental and Biological Engineering.Atlantis Press,2015:344-352.
[20]张铁男,李晶蕾.对多级模糊综合评价方法的应用研究[J].哈尔滨工程大学学报,2002,23(3):132-135.