模糊评判系统下的边坡土壤肥力综合级别评价方法探讨  

Discussion on fuzzy assessment system based comprehensive method for evaluation of fertility grade of slope soil

作　　者：许阳[1] 陈芳清[1] 许文年[1] 宛良朋[2] 金章利[3] 刘高鹏[4] 

机构地区：[1]三峡大学化学与生命科学学院,湖北宜昌443002 [2]三峡大学水利与环境学院,湖北宜昌443002 [3]湖北三峡职业技术学院,湖北宜昌443000 [4]三峡大学勘测设计研究总院,湖北宜昌443002

出　　处：《水利水电技术》2012年第3期79-81,87,共4页Water Resources and Hydropower Engineering

基　　金：国家自然基金(51079076、50879043);三峡大学2011年研究生科研创新基金(2011CX006)

摘　　要：针对水布垭区域建立肥力综合级别模糊评判系统,利用水布垭早期监测资料,根据客观现状利用较为成熟的标准肥力综合级别法单因子级别确定方法来建立隶属函数,并利用各肥力因子隔段测值的变化来确定其权重值,进而利用所建立模糊评判系统,赋予土壤肥力一定的综合级别指标,结果与标准综合级别法所得结果较为一致。本文所得结果还能较为清晰地知道不同级别的肥力分布情况,以及综合级别指标值在各时间状态下的变化趋势。A comprehensive fuzzy assessment system for fertility grade is established for Shuibuya Region in Hubei Province;i.e.establishing the membership function through the way of determing single factor from the more mature method of standard comprehensive assessment on fertility grade,and then defining its weight with the changes of the interval measured values of all the fertility factors,furthermore,giving the soil fertility a certain comprehensive index with the established fuzzy assessment system;from which the result is more coincided with that from the method of standard comprehensive assessment on fertility grade.Generally,with the result from the study herein,the fertility distribution of different grades with the changing trends of the comprehensive grade index values under all the relevant temporal states can be more obviously obtained.

关 键 词：模糊评判 土壤肥力 综合指标 肥力分布 水布垭地区 湖北省 

分 类 号：S15[农业科学—土壤学]