基于层次分析法确定林区土壤养分的权重  

Determination of Soil Nutrient Weights in Forest Areas Based on Analytic Hierarchy Process

作　　者：荣艳芳 Rong Yanfang(Ledu District Forestry Bureau,Haidong City,Qinghai Province,Haidong 810700,China)

机构地区：[1]青海省海东市乐都区林业局,青海海东810700

出　　处：《防护林科技》2018年第9期23-24,28,共3页Protection Forest Science and Technology

摘　　要：通过实地土壤取样,采用层次分析法对大兴安岭林区土壤进行了养分分析及权重确定。结果表明:该区土壤各养分指标的权重为有效磷(0.198 3)>有机质(0.168 1)>速效钾(0.153 1)>水解氮(0.123 2)>全磷(0.137 2)>全氮(0.111 9)>全钾(0.108 2);磷元素是土壤养分的重要影响因子,尤其是有效磷,其权重在各项指标中最高。该方法可以有效测定不同林地土壤养分的权重。Through field sampling of soil,nutrient analysis and weighting determination were conducted by using AHP （analytic hierarchy process）. Result shows that the descending orders of weights of soil nutrient indexes is： available phosphorus （0.198 3） 〉 Organic matter （0.168 1）〉 Available potassium （0.153 1）〉 Hydrolyzed nitrogen （0.123 2）〉 Total phosphorus （0.137 2）〉 Total nitrogen （0.111 9）〉 Total potassium （0.108 2）. From the result, phosphorus is an important influence factor of soil nutrients. Especially effective phosphorus has the highest weight among all indicators. This method can effectively determine the weight of soil nutrients in different forest lands.

关 键 词：林区土壤 养分权重 层次分析法 大兴安岭 

分 类 号：Q938.13[生物学—微生物学]