延边州农田栽参参后地土壤肥力评价  

Evaluation of Soil Fertility after Planting Ginseng in Yanbian Prefecture

作　　者：房雪 杨涵童 邢金月 邹杭宇 程薪竹 李官浩[2] 李翔国[1] FANG Xue;YANG Hantong;XING Jinyue;ZOU Hangyu;CHENG Xinzhu;LI Guanhao;LI Xiangguo(Agricultural College of Yanbian University,Yanji jilin 133002,China;Institute of Food Research,Yanbian University,Yanji jilin 133002,China)

机构地区：[1]延边大学农学院,吉林延吉133002 [2]延边大学食品研究中心,吉林延吉133002

出　　处：《西南大学学报（自然科学版）》2022年第2期28-38,共11页Journal of Southwest University(Natural Science Edition)

基　　金：国家自然科学基金项目(32060555);国家“十三五”重点研发计划课题(2018YFD0401202).

摘　　要：为探究延边州农田栽参参后地土壤的肥力水平,以土壤的10种基础理化性质(pH值、电导率、有机质、全氮、硝态氮、铵态氮、全磷、速效磷、全钾、速效钾)作为评价指标对延边州3市2县的28块参后地土壤进行主成分分析和隶属函数分析.结果表明:延边州参后地土壤pH值为5.78,电导率为69.17μs/cm,有机质、全氮、硝态氮、铵态氮、全磷、速效磷、全钾、速效钾的平均质量分数分别为52.11 g/kg,3.65 g/kg,24.90 mg/kg,14.12 mg/kg,0.94 g/kg,54.40 mg/kg,5.33 g/kg,211.28 mg/kg.除pH值为低等变异水平外(8%),其余指标均呈中等变异水平.通过主成分分析法提取出3个主成分代表所有信息,反映了原信息量的90.387%.3市2县的土壤肥力综合得分由高到低依次为敦化(1.147)、汪清(0.962)、延吉(0.327)、安图(0.163)、珲春(-2.599).通过模糊综合评价法对3市2县的28块样点进行排名由高到低依次为敦化(0.747)、汪清(0.731)、延吉(0.678)、安图(0.649)、珲春(0.404).两种方法的评价结果呈极显著正相关关系,可以相互佐证,表明延边州农田栽参参后地土壤状况为中等.研究结果为延边州农田栽参提供了科学依据.In order to study the fertility of the soil after planting field ginseng in Yanbian prefecture,the soil of 28 fields post ginseng planting in Yanbian prefecture was analyzed by using main component analysis and membership function analysis based on the 10 basic physical and chemical properties(pH value,conductivity,organic matter,total nitrogen,nitrate nitrogen,ammonium nitrogen,total phosphorus,available phosphorus,total potassium and available potassium).The results showed that the average value of pH,conductivity,and content of organic matter,total nitrogen,nitrate nitrogen,ammonium nitrogen,total phosphorus,available phosphorus,total potassium and available potassium in Yanbian prefecture was 5.78,69.17μs/cm,52.11 g/kg,3.65 g/kg,24.90 mg/kg,14.12 mg/kg,0.94 g/kg,54.40 mg/kg,5.33 g/kg,211.28 mg/kg,respectively.Except the low variation level(8%)of pH,the other indexes were at the moderate variation level.Three principal components were extracted by PCA,which reflected 90.387%of the original information.The comprehensive score of soil fertility in three cities and two counties was Dunhua(1.147),Wangqing(0.962),Yanji(0.327),Antu(0.163),Hunchun(-2.599).The 28 sample points of three cities and two counties were ranked by fuzzy comprehensive evaluation method as Dunhua(0.747),Wangqing(0.731),Yanji(0.678),Antu(0.649),Hunchun(0.404).The results of the two methods are highly significantly positively correlated,and can be proved each other,indicating that the soil condition of the farmland post ginseng planting in Yanbian prefecture was moderate.The results provide scientific basis for the cultivation of ginseng in Yanbian prefecture.

关 键 词：参后地土壤 主成分分析 隶属函数 肥力水平 

分 类 号：S158.2[农业科学—土壤学]