凉山州主要造林树种苗木分级标准研究  

Study on the Seedling Standard of Main Silvicultural Tree Species for Liangshan District

作　　者：王俊[1] 胡庭兴[1] 冯德宾[2] 万涛[2] 武卫国[1] 李进峰[1] 

机构地区：[1]四川农业大学林学园艺学院,四川雅安625014 [2]四川省林木种苗站,四川成都610000

出　　处：《四川农业大学学报》2007年第4期498-501,共4页Journal of Sichuan Agricultural University

基　　金：四川省林业先导计划课题"四川省林木种苗标准制定"(2004-2005)

摘　　要：对凉山州8个县(局)苗圃的14个树种苗木分别进行小样方随机抽样,调查苗木生长及根系现状,在各样方苗木性状精度检验的基础上,采用x-±s划分苗木等级,确定各树种的分级标准。其中主要树种1年生华山松Ⅰ级苗苗高9cm,地径0.23cm,Ⅱ级苗苗高范围在9～7cm,地径范围在0.23～0.20cm。3年生云杉Ⅰ级苗苗高37cm,地径0.86cm,Ⅱ级苗苗高范围37～32cm,地径范围0.86～0.63cm。With the random sampling method, the seedling of 14 tree species in 8 counties in Liangshan district of Sichuan province were investigated, and the growth fact of seedling and root properties of seedlings were studied. Based on seedling properties and precision test of the different samples, the degree of seedling was classified according to the method of x^-± s, and the final standard of seedlings was proposed. For enample, the ground diameter and height of the first-grade seedlings for one-year-old Pinus armandi are 0.38 cm and 9 cm respectively, and those of the second-grade seedlings are 0.23～ 0.20 cm and 9～ 7 cm respectively. The ground diameter and height of the first-grade seedlings of three-year-old Picea asperata are 0.86 cm and 36 cm, and those of the second-grade seedling are 0.86 ～0.63 cm and 37～32 cm respectively.

关 键 词：苗木 苗木分级标准 凉山州 

分 类 号：S723.4[农业科学—林木遗传育种]