长沙市8种常见绿化树种的耐阴性  

Shade-tolerance of Eight Common Afforestation Tree Species in Changsha City

作　　者：王旭军[1] 吴际友[1] 廖德志[1] 程勇[1] 

机构地区：[1]湖南省林业科学院,长沙410004

出　　处：《东北林业大学学报》2010年第3期14-16,共3页Journal of Northeast Forestry University

基　　金：国家"十一五"科技支撑专题(2006BAD03A1704)

摘　　要：选取长沙市8种常见绿化灌木为材料,利用叶片形态、叶绿素质量分数及光响应曲线等指标对其耐阴性进行了综合评价,以期为城市绿化植物的选择、配置提供试验依据。结果表明:8种灌木树种可分为4组:耐阴性强的3种(珊瑚树(Viburnum odoratissimum Ker.)、月月桂(Osmanthus fragrans'Semperflo')和紫薇(Lagerstro-emia indica));较耐阴的2种(海桐(Pittosporum tobira(Thunb.)Ait)和杜鹃(Rhododendron simsiiR.spp.);中性的2种(龙爪槐(Sophora japonicaf.pendula)和碧桃(Prunus persica Batsch. var. duplex Rehd));不耐阴的1种,即紫荆(Cercis chinensis Bunge)。A comparative study on shade-tolerance of eight common shrub species was conducted using a Li-6400 portable photosynthetic system in order to provide a reference for the selection and arrangement of afforestation tree species in Changsha City. Physiological indices of leaf thickness,leaf area,specific leaf area,leaf water content,chlorophyll content,chlorophyll a/b ratio,light compensation point,light saturation point,and apparent quantum yield were used to study the shade-tolerances of the eight tree species. Results showed that all eight afforestation tree species could be classified into four groups by hierarchical cluster analysis：strongly shade-tolerant species （Viburnum odoratissimum Ker.,Osmanthus fragrans cv. Semperflo,and Lagerstroemia indica）,shade-tolerant species （Pittosporum tobira （Thunb.） Ait. and Rhododendron simsii）,medium shade-tolerant species （Sophora japonica f. pendula and Prunus persica Batsch. var. duplex Rehd.）,and shade-sensitive species （Cercis chinensis Bunge）.

关 键 词：耐阴性 绿化灌木 长沙市 

分 类 号：S718.3[农业科学—林学]