摘要
采用现场调查、观测、试验等多种试验方法,对黄延高速公路绿化植物、边坡土壤理化性质以及植物群落组成进行了研究。通过分析,总结了中央分隔带、平台和边坡绿化植物种类以及边坡有效配置模式,分析了土壤养分贫瘠的原因和提高措施。在此基础上提出土壤肥力与植物恢复是相辅相成的,土壤肥力随人工植被建立时间的延长而逐渐恢复;随着时间序列的延长,其物种数目和比例也发生较大变化,有利于护坡植物群落最终实现结构稳定。
Based on in situ investigation, observation, and test, green plant, slope soil physical and chemical properties, and plant community composition on the H uangling--Yan＇an Highway are studied. Through an- alyses, plant species in the central reserve, platform and slope, and the advanced allocation model are sum- marized and the reasons of soil nutrient pool and improving measures are analyzed. Accordingly, several rele- vant conclusions are made. Soil fertility and plant restoration is complement and soil fertility is gradually re- stored with time after artificial vegetation construction. The number and proportion of species have a great change with the passage of time, which is beneficial to plant community of slope to reach structural stability.
出处
《水土保持通报》
CSCD
北大核心
2009年第4期191-195,共5页
Bulletin of Soil and Water Conservation
基金
陕西省水土保持局"线状工程建设水土流失防治技术示范推广研究项目"
