南京主要滨河绿地植物群落的调查

应用群落生态学方法,对南京紫霞湖、前湖、护城河与玄武湖滨河绿地植物群落的外貌、组成与结构等进行了调查。结果表明,5个绿地主要以阔叶落叶树种为主,缺少常绿树种的运用;群落结构不甚合理,乔木层相对丰富,而低矮灌木及地被层种类和数量相对缺少;人工绿地过于注重观赏品种的运用,而忽视耐水湿性种。作者认为,应结合地形和环境,合理地把握植物耐水湿性与观赏性,创造有地域特色的滨河植物景观,达到自然景观与人工景观的统一;可适当增补一些观赏性好的适生树种,提高植物景观多样性,营造城市滨河生态廊道,使其成为城市绿地系统中的组成部分。

Survey of community of the main riverside green space in Nanjing

The appearance,composition and structure of community at riverside greens including Zixia Lake,Qianhu Lake,the City Moat and Xuanwu Lake in Nanjing were investigated by community method.It is concluded that there are more for deciduous broadleaved trees,fewer for evergreen trees;community structure is more abundant in arbor tree layer,less in shrub and herb layer;ornamental trees are mainly applied,but water tolerance trees are neglected in artificial green space in some riverside green spaces.It is suggested that riverside plant landscape with local features should be established;natural landscape should be unified with artificial landscape by using plants of water tolerance and ornamental in harmony with natural environment.In order to increase diversities of plant landscape and develop ecological greenbelts of riverside,some suitable ornamental trees,becoming one part of urban green space ecosystem,should be supplemented.