不同供氮水平对4种桤木幼苗生长的影响

桤木属（Alnus Mill.）植物为桦木科（Betulace-ae）落叶乔木,典型的木本非豆科（Leguminosae）固氮树种,主要分布于北半球寒温带、温带和亚热带地区。全世界大约有40余种,我国有11种。桤木属植物生长迅速，其叶含氮量高，为良好的优质天然肥料和饲料树种；木材用途广，为优质的建筑、家具和造纸用材树种；其适应性广，喜温、喜湿、耐水和耐瘠薄，是重要的生态防护树种。...

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Bibliographic Details
Published in林业科学研究 Vol. 25; no. 2; pp. 246 - 253
Main Author 饶龙兵 李霞 段红平 陈益泰
Format Journal Article
LanguageChinese
Published 中国林业科学研究院亚热带林业研究所,浙江富阳,311400%中国林业科学研究院亚热带林业研究所,浙江富阳311400 2012
云南农业大学资源与环境学院,云南昆明650201%云南农业大学资源与环境学院,云南昆明,650201
Subjects
根系参数
桤木
桤木属
氮水平
生物量
生长反应
根系参数
桤木
生物量
桤木属
氮水平
生长反应
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ISSN1001-1498
DOI10.3969/j.issn.1001-1498.2012.02.024

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Summary:桤木属（Alnus Mill.）植物为桦木科（Betulace-ae）落叶乔木,典型的木本非豆科（Leguminosae）固氮树种,主要分布于北半球寒温带、温带和亚热带地区。全世界大约有40余种,我国有11种。桤木属植物生长迅速，其叶含氮量高，为良好的优质天然肥料和饲料树种；木材用途广，为优质的建筑、家具和造纸用材树种；其适应性广，喜温、喜湿、耐水和耐瘠薄，是重要的生态防护树种。
Bibliography:11-1221/S
alder; Alnus genus; nitrogen concentration; growing responses; biomass; root parameter
RAO Long-bing,LI Xia,DUAN Hong-ping,CHEN Yi-tai（1.Research Institute of Subtropical Forestry,Chinese Academy of Forestry,Fuyang 311400,Zhejiang,China;2.College of Resource and Environment,Yunnan Agricultural University,Kunming 650201,Yunnan,China）
The experiment on four exotic alder including Alnus glutinosa,A.rubra,A.nitida and A.incana growing under four different concentrations of nitrogen was conducted in a greenhouse in order to research the alder＇s responses under different nitrogen concentrations and stresses.The results showed that the growing parameters of alder on the survival percent of transplanting,plant height,ground diameter,biomass,root-top ratio,relative content of chlorophyll（SPAD） and rooting parameters（length,superficial area,volume and tips of root） were significant among different materials and different nitrogen concentrations,the different level of nitrogen significantly affected the growth of
ISSN:1001-1498
DOI:10.3969/j.issn.1001-1498.2012.02.024