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盐碱地公路绿化,可改善路貌,美化环境,改善生态条件,是公路绿化的重要组成部分,也是平原农区防护林体系不可缺少的重要组成部分.惠民地区地处滨海和黄河下游,盐碱地分布广,面积大,公路多穿行于其中.公路绿化,一般都在路肩边缘以外至少50cm的边坡上植树.路肩边坡地势高,坡度大,保水性差,而且蒸发强烈,干旱,返盐严重,给公路绿化造成很大困难.尽管采用耐盐树种——绒毛白蜡绿化,但因方法不当,成活率仅17.6-22.8%.为此,我们在惠民地区科委、地区林业局和惠民县公路站的密切配合下,协作进行了公路边坡盖膜栽植绒毛白蜡的试验,取得了良好效果,现介绍如下. 一、试验地点概况该地点在惠民县城东南永莘公路上.路基土主要为重盐碱场地的壤土和中壤土.由于
Saline-alkali highway greening can improve the road appearance, beautify the environment and improve the ecological conditions, is an important part of highway greening, but also an indispensable part of the plain farmland shelterbelt system.Huimin is located in the coastal and the lower reaches of the Yellow River, , Large area, roads and more in which the highway greening, are generally at least 50cm in the edge of the road shoulder tree planting slope shoulder slope high ground, large slope, poor water retention, and strong evaporation, drought, severe salt return to Highway greening caused great difficulties.Although the use of salt-resistant species - velvet white wax green, but due to improper methods, the survival rate of only 17.6-22.8% .To this end, we Huimin Science and Technology Commission, the Regional Forestry Bureau and Huimin County Road In close cooperation with the station, the experiment carried out on the highway slope cover film planting fluff white wax, and achieved good results, are described below.A test site Overview The site is located in Yongmin Road, southeast of Huimin County Subgrade soil mainly Heavy salinization of the site of loam and medium loam