摘要
为了使西北寒旱地区工程边坡在恶劣立地条件下尽快实现生态恢复,以新疆某水电站引水渠道右岸开挖形成的砂砾石边坡和盐碱质黄土边坡为工程背景,开展了固结植生生态防护技术试验研究。通过室内试验确定有利于植物生长的护坡复合基材各组分的最佳配比,并进行现场应用试验,验证了固结植生生态防护技术的效果。研究表明:复合基材混合物中高摩尔比脲甲醛缓释肥是影响护坡植物长势的主导因素,含水量为次要影响因素;边坡固结植生生态防护技术应用效果良好,草种萌芽率高,植被覆盖度高;边坡植物根系具有加筋及锚固作用,可显著提高边坡稳定性。
In order to realize the ecological restoration of the engineering slope in the cold and dry areas of northwest China under the site fac⁃tov conditions as soon as possible,the sand and gravel slope and the saline loess slope formed by the excavation of the right bank of the diver⁃sion channel of a hydropower station in Xinjiang were taken as the engineering background to carry out the experimental research on the con⁃solidation plant ecological protection technology.The optimum ratio of each component of slope protection composite substrate favorable to plant growth was determined by laboratory test,and field application test was carried out to verify the protective effect of consolidated ecologi⁃cal technology.The results show that the high molar ratio urea⁃formaldehyde slow⁃release fertilizer is the main factor affecting the growth of slope protection plants,and the water content is the secondary factor.The application effect of slope consolidation and ecological protection technology is good,grass seed germination rate is high and vegetation coverage is high.The root system of the slope has the reinforcing and anchoring function,which can improve the stability of the slope.
作者
刘慧
李振国
宋万增
张彬
尹冰涛
LIU Hui;LI Zhenguo;SONG Wanzeng;ZHANG Bin;YIN Bingtao(Yellow River Institute of Hydraulic Research,YRCC,Zhengzhou 450003,China;Research Center on Levee Safety&Disaster Prevention,Ministry of Water Resources,Zhengzhou 450003,China;Construction Management Center for Huangzangsi Water Conservancy Project in Heihe River,Qilian 810400,China;Henan Huangke Engineering Detection Co.,Ltd,Zhengzhou 450003,China)
出处
《人民黄河》
CAS
北大核心
2020年第9期151-154,共4页
Yellow River
基金
国家重点研发计划项目(2017YFC0504506)
国家自然科学青年基金项目(51809109)
黄科院基本科研业务费专项(HKY-JBYW-2020-20)。
关键词
边坡防护
复合基材
固结植生
生态恢复
现场试验
high and steep slope protection
the composite substrate
consolidation vegetative
ecological restoration
field test
