摘要
研究了天童地区32种常绿阔叶树叶片的营养、结构特征,结果表明该地区常绿阔叶植物叶中N含量的变化幅度为1.022%～2.744%,平均值是1.606%;P含量的变化幅度为0.032%～0.227%,平均值是0.086%,且N、P含量成显著相关;C含量变化幅度为36.49%～53.85%,平均值为45.00%;SLA变化幅度为72.64～197.78,平均值为119.29;叶片的营养含量与C含量、SLA无关,而C含量与SLA成负相关;灌木的营养含量要低于乔木树种,灌木和中乔木的C含量要高于小乔木,但不同生活型植物SLA无明显差异。
In the present paper,leaf nutrient and structural characteristics of 32 evergreen broadleaved plant species were studied.The results are as follows:leaf N varies from 1.022% to 2.744%,the average is 1.606%;leaf P varies from 0.032% to 0.227% and the average is 0.086%;N and P are positively correlated;leaf C varies from 36.49% to 53.85% and the average is 45.00%;SLA varies from 72.64 to 197.78 and the average is 119.29;leaf C is negatively correlatedwith SLA,but nutrient content isn't correlated with leaf C or SLA;leaf nutrientof shrubs is lower than that of large trees species and shrubs species;the difference of SLA of these three life formsisn't significant
出处
《华东师范大学学报（自然科学版）》
CAS
CSCD
北大核心
2003年第1期92-97,共6页
Journal of East China Normal University(Natural Science)
基金
国家自然科学基金重点项目(30130060).
关键词
常绿阔叶树
叶营养
叶结构
evergreen broad-leaved species
leaf nutrient
leaf structure
