高速公路岩石边坡绿化养护浇水频率研究——以京承高速公路(三期)为例  

Research on Watering Frequency of Virescence Maintenance to Rocky Slopes of Freeway——A Case Study of Beijing-Chengde Freeway(Period Ⅲ)

作　　者：徐洪雨[1] 王英宇 宋桂龙[1] 韩烈保[1] 

机构地区：[1]北京林业大学草坪研究所,北京100083 [2]北京市京石园林绿化有限公司,北京102600

出　　处：《公路交通科技》2013年第5期132-137,152,共7页Journal of Highway and Transportation Research and Development

基　　金：交通运输部科技项目(2009353311050);北京市首都公路发展集团有限公司科技项目;国家林业局林业科学技术推广项目(201131)

摘　　要：为估算边坡绿化养护的浇水频率,以京承高速公路3期为例,采用环刀测试土壤含水量的方法,对2个不同坡向边坡共6个坡位的基质田间持水量、基质水分变化速率以及试验边坡4种优势植物的萎蔫系数分别进行调查。根据测试指标的调查结果,浇水频率的估算结果为6个坡位之间的浇水频率为1次～1次/10 d不等,从每个边坡3个坡位浇水频率的平均值来看,阳坡和阴坡的平均浇水频率都约为1次/13 d。将估算结果在实践中进行验证,充足降雨后,调查发现约13～15 d后植物发生萎蔫,不能维持正常生长。浇水频率的理论估算结果与实践验证结果基本相吻合,浇水频率的估算方法在岩石边坡绿化养护中具有理论指导意义。In order to estimate the watering frequency of freeway rocky slopes＇ virescence maintenance, the stromal field capacity, stromal daily variation of water content and the wilting coefficient of 4 kinds of advantage plant on tested slopes on 2 slopes＇ different positions of Beijing-Chengde freeway （Period Ⅲ） are investigated with the method of cutting rings to test soil moisture. According to the test result, the estimated watering frequency is 10 to 17 days each time at 6 positions of slopes. Judging by the average watering frequency of 3 positions of each slope, the watering frequency is 13 days each time on both the south-facing slope and the north-facing slope. After the estimation, tracking study is conducted to the plants on slopes to check the estimate result in practice, it is found that the plants are wilted and could not grow normal after full raining 13 to 15 days. So the method of estimating watering frequency could provide theoretical direction for virescence maintenance of rocky slopes because of the study result conforms to the estimation result.

关 键 词：环境工程 浇水频率 基质水分变化 公路边坡 绿化养护 

分 类 号：X171.4[环境科学与工程—环境科学]