平武野生天麻生态环境与土壤地球化学研究  

Eco-environment and Soil Geochemistry of Wild Gastrodia Elata in Pingwu

作　　者：李虎杰[1] 崔春龙[1] 李洪益[1] 岳含云[1] 

机构地区：[1]西南科技大学国土资源与城市建设学院,四川绵阳621010

出　　处：《土壤通报》2005年第5期692-694,共3页Chinese Journal of Soil Science

基　　金：四川省自然科学基金资助项目:特殊类型区土壤理化特性研究(项目编号:02MY029-077)

摘　　要：采用野外调查与室内分析相结合的方法,对四川平武野生天麻产区的自然地理、气候、植被、土壤营养成分、土壤及天麻中微量元素含量等进行了研究。研究表明平武野生天麻主要分布于海拔800-1900m范围,该区气候温和、降雨充沛,林木以青冈树为主,草本植物以蕨类为主,成土母质为志留系千枚岩。野生天麻多生长于壤土中,土壤为弱酸性,有机质含量丰富,土壤中速效氮、速效钾含量中等,速效磷较缺乏,土壤有效铜、有效锌和活性锰含量较高,未遭受到重金属污染。天麻对铜、锌具有选择性吸收作用。An approach of combining field investigation with indoor analysis was used to study playsical geography, climate, vegetation, nutrition composition of soil, and trace elements of soil and Gastrodia elata. It is shown that wild Gastrodia elata in Pingwu are distributed between 800-1900m above sea level with a temperate climate and abundant rainfall. The wild Gastrodia elata grow in loam with a weak acidity and abundant organic matter. The soil has a medium available N and K , low available P, high effective Cu,Zn and active Mn. Gastrodia elata have a selective absorption to Zn and Cu.

关 键 词：天麻 生态环境 土壤 地球化学 

分 类 号：S567.06[农业科学—中草药栽培]