关联规则支持下坡面土壤侵蚀评价指标体系构建——以鄂西北丹江库区郧西县为例  

Evaluation index system establishment for soil erosion of hill slope based on association rule— take the example of Yunxi County in north-west of Hubei Province

作　　者：鄢铁平[1] 孙燕[2] 廖炜[1] 张秋文[2] 龚兰兰[2] 

机构地区：[1]湖北省水土保持监测中心,武汉430071 [2]华中科技大学数字流域科学与技术湖北省重点实验室,武汉430074

出　　处：《中国水利》2011年第22期49-51,55,共4页China Water Resources

基　　金：国家自然科学基金项目(41101258);中央高校基本科研业务专项资金项目(0109271912)

摘　　要：在综述国内外研究概况和研究方法的基础上,结合鄂西北山区的相关径流小区观测数据,引用关联规则中的Apriori算法,首先对坡角、植被覆盖度、土地利用类型、植被措施等各种不同因子进行量化,然后分别实现在不同耕作方式、不同坡度、不同植被覆盖度因子条件下以及综合因子影响下,它们对土壤侵蚀状况的影响,再综合进行影响因子与坡面土壤侵蚀之间的关联规则分析,以算法的支持度与置信度为基础,实现各因子与土壤侵蚀状况的重要性程度关联,进而得到各因子与土壤侵蚀之间重要性关系,建立研究区坡面径流小区土壤侵蚀评价指标体系。Based on the domestic and overseas research review,according to the current observation data of related runoff area in the montane of Northwest Hubei province,quoted the APriori arithmetic in association rules,this paper first quantifies the related factor like grade,type of vegetation coverage,land use pattern,vegetation measures.Then it observes the effect of the soil erosion condition under the different factors and combined factors,such as farming methods factor,ratio of slope factor,forest vegetation coverage factor.After getting the interdependence between the factors and the soil erosion,it will be found the relationship between them so that the evaluation index system for soil erosion of hill slope can be set up.

关 键 词：坡面土壤侵蚀 关联规则 评价指标体系 鄂西北山区 

分 类 号：S157[农业科学—土壤学]