| 摘要: |
| 立足于重庆为代表的亚热带湿热气候条件，聚焦轻
薄绿色屋顶景观，采用分区条形重复随机实验设计，构建具有
2种混合草本群落、4种轻质保水基质类型，基质深度为20cm
的绿色屋顶模块实验平台，对不同基质中植被生长高度、地面
覆盖度、存活率、视觉外观指数、叶片气孔导度等指标以及基
质体积水分含量进行持续监测，第一个生长季研究结果表明：
综合各项生长表现指标，斑叶芒、花叶芒、细叶芒、阔叶山麦
冬、紫竹梅、蓝花鼠尾草在轻薄绿色屋顶设施中表现优异，具
有细密颗粒配比的轻质保水型D类基质在轻薄绿色屋顶的草本
植被群落上具有应用优势，对重庆及亚热带湿热气候条件下轻
薄绿色屋顶的景观构建具有基础研究意义与应用价值。 |
| 关键词: 园林植物 绿色基础设施 绿色屋顶 混合草本群
落 植被生长 基质水分含量 |
| DOI： |
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| 基金项目: |
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| Performance of Vegetation Growth in Different Substrates on Extensive Green Roof in Hot and Humid Area |
| LIU Can,LI Yufei,LIU Jialin |
| Abstract: |
| This research considered the climate conditions in humid
subtropical regions such as Chongqing. Based on a randomized complete
block and strip-plot design with replicates, an experimental platform of
extensive green roofs was set up with two types of vegetation mixes and
four types of 20cm water-retaining light substrates, then the volumetric
water content as well as indicators such as plant height, ground coverage,
survival, visual appearance, and stomatal conductance of leaves of
vegetation growth in different substrates was continuously monitored.
The results of the first growing season show that: When combined, all
of these growth performance indicators suggest that Miscanthus sinensis
'Zebrinus', M. sinensis 'Variegata', M. sinensis 'Gracillimus', Liriope
platyphylla, Tradescantia pallida and Salvia farinacea have excellent
performance on extensive green roofs. The water-retaining light substrate
of type D with fine particles has advantages in the application of
extensive green roofs with herbaceous plants. This research has a positive
significance in basic research, and it can also contribute to the application
of extensive green roofs not only in Chongqing but also in other humid
subtropical regions. |
| Key words: landscape plant green infrastructure green roof mixed
herb community vegetation growth substrate moisture content |
