光照条件对不同类型绿地南天竹叶色变化的影响  

Effects of Light Conditions on the Leaf Color Change of Nandina domestica in Different Types of Greenbelt

作　　者：胡平 HU Ping(Fuyu Township Forestry Station of Susong County,Anqing 246500)

机构地区：[1]宿松县孚玉林业站,安徽安庆246500

出　　处：《安徽林业科技》2024年第2期24-28,共5页Anhui Forestry Science and Technology

摘　　要：南天竹是一种常见的观叶观果常绿小灌木,园林绿化中常常把单株南天竹群植成各种形状的色块和图案,颇具观赏价值。本文以宿松县城区道路绿地、公共绿地和单位附属绿地3种不同类型绿地中群植的南天竹色块为调查对象,对这些不同类型绿地中群植的南天竹叶色变化情况进行连续多年的观测调查,找出影响其叶色变化的主要环境因子。结果表明,南天竹叶色随外界环境条件的变化会发生如下变化:由绿变红,后又由红变绿,周而复始。在生长期,遮阴条件较低情况下,南天竹植株叶色变红效果较好;在休眠期,遮阴条件中等或较低情况下,植株叶色变红效果不错,观赏性强。研究结果可以为广大园林绿化工作者在今后的绿化实践中如何更合理地配置南天竹、充分发挥南天竹的观赏价值提供参考。Nandina domestica is a common evergreen ornamental foliage and fruit shrub often planted in clusters to form color blocks and patterns of different shapes with ornamental value in landscaping.In this paper,color blocks of the species planted in clusters in 3 types of greenbelts including urban road greenbelt,public greenbelt and greenbelt affiliated with an entity were the survey objects and the leaf color change of the blocks were observed and surveyed for years to find out the main environmental factors causing the change.The results showed that the leaf color of the species changed with environmental variations in a circle as follows:from green to red,then from red to green again.In the growing period with light shading,the leaf color could effectively turned red.In the dormancy period with light or moderate shading,the leaf color could both turned red effectively with good ornamental value.The study results could provide reference for rational allocation of the species in greening practice by landscaping practitioners and give full play to the species in its ornamental value.

关 键 词：园林绿化 彩叶植物 南天竹 

分 类 号：S793.9[农业科学—林木遗传育种]