摘要
植物混凝土格栅技术是一种新型的生态护坡技术。选择北京地区延庆县水土保持科技示范园内一处陡峭裸露边坡为研究对象,研究了植物混凝土格栅技术在北京地区的适用性以及在岸坡生态修复中的作用。针对该段坡面存在的溅蚀、面蚀以及沟蚀等土壤侵蚀现象,采用植物扦插与混凝土格栅相结合的方法对裸露边坡进行近自然修复。分别对施工后3个月、15个月和47个月时旱柳的成活率、覆盖度以及47个月后旱柳的生长状况、土壤养分和生物多样性进行了调查监测。结果表明,利用该技术使旱柳的生长情况达到了较高的水平。47个月后旱柳的平均基径和平均株高分别为2.02cm和317.2cm,而且岸坡植被迅速恢复,生物多样性明显增加,土壤性质有所改良。
Plant—concrete grillage slope protection is a new technology for ecological slope protection.By taking a steep and bare slope located in Soil and Water Conservation Science and Technology Demonstration Park in Yanqing County of Beijing City as a research object,the applicability of the technology in Beijing City and its effects in ecological restoration on slope were studied.Because of the existence of splash erosion,surface erosion,gully erosion and other types of soil erosion,the method combining plant cuttings and concrete grillage was used to restore bare slope near-naturally.After 3,15 and 47 months of construction,survival rate and coverage degree of Salix metsudana were investigated and monitored,including the growth conditions,soil nutrients and biological diversity of 47-month-old Salix metsudana.It can be concluded that the growth of Salix metsudana using this technology has reached a higher level.The average branch diameter of 47-month-old Salix metsudana was 2.02 cm and the average stem height,317.2 cm.Meanwhile,vegetation on slope recovered rapidly,biological diversity increased obviously,and soil properties were improved somewhat.
出处
《水土保持通报》
CSCD
北大核心
2012年第3期123-127,共5页
Bulletin of Soil and Water Conservation
基金
国际科技合作项目"土壤生物工程在北京市怀柔区河道生态治理中的应用"(2009DFA32490)
关键词
土壤生物工程
生态修复
植物混凝土格栅
旱柳
soil bioengineering
ecological restoration
plant—concrete grillage
Salix metsudana
作者简介
作者简介：钱斌天（1986），男（汉族），甘肃省张掖市人，硕士研究生，主要研究方向为水土保持与荒漠化防治。E-mail：qianbintian@163．com。
通信作者：高甲荣（1963），男（汉族），陕西省韩城市人，教授，主要研究方向为水土保持。Email：jiaronggao@sohu．com。
