北京城市屋顶绿化佛甲草养护管理技术  

Study on the conservation management techniques of Sedum lineare at the roof greening of Beijing city

作　　者：马燕[1] 白淑媛[1] 梁芳[1] 彭博 姜丽 

机构地区：[1]北京市园林科学研究所,北京100102 [2]北京市西城区园林局,北京100045

出　　处：《草业科学》2009年第7期158-164,共7页Pratacultural Science

基　　金：北京市公园管理中心项目(79)

摘　　要：试验以确定简单式屋项绿地佛甲草Sedum lineare的养护标准为目的。测定其年需水量、灌溉时间，调查生长和病虫害发生状况，确定修剪时间及杂草防除方法。试验结果表明：屋顶绿化基质含水率和佛甲草茎叶含水率无相关性；基质层6cm，株高8～12cm，年最适供水量为361．45mm；基质层10cm。株高25-30cm，年供水量为533．90mm。佛甲草主要发生的是生理病害，常由于积水和过度干旱的交替而发生。主要虫害为蚜虫和蜗牛，但未发现严重危害的现象。秋季适时适度修剪可延长佛甲草的绿色期，并提前返青，其最佳修剪量为株高的1／3～1／2。防除杂草是佛甲草养护十分重要的措施之一。北京地区人工灌溉也是佛甲草必须的养护管理措施，如：返青水、干热季节灌溉和冬灌。The The annual insect pests W trial goal ater requi was to define the remen occurrence were t and irrigatio investigated, conservation standard of Sedum lineare in roof greening. n time were determined, the plant growth and diseases and the pruning time and weeds control method were determined. The results showed that the moisture content of roof greening substrate and plant water content of S. lineare were not correlated. When the substrate was 6 cm and plant height was 8 cm to 12 cm, the annual adaptive watering amount was 361.45 mm. If the substrate was 10 cm and plant height was 25 cm to 30 cm, the annual watering amount was 533.90 mm. There was usually physiological disease on S. lineare induced by the alternation of the water log and excessive drought. The main insect pests were aphid and snail of S. lineare, but no serious damage was observed. Moderate pruning could prolong the green period of S. lineare in autumn. The optimum pruning length was 1/3 to 1/2 of the plant height. Weeds control was an important measure for the conservation of S. lineare. The artificial irrigation was necessary for the conservation management of S. lineare, such as regeneration watering, dry and hot season and winter irrigation.

关 键 词：屋顶绿化 佛甲草 养护管理 技术 

分 类 号：S688.4[农业科学—观赏园艺]