对青海省高等级公路水资源利用技术的思考

青海省自然环境条件恶劣，公路绿化建设难度大，突出表现在降雨量少且集中、蒸发量大、不同地区分布不均等特点，路侧植物存活与生长困难，建设成效不理想．在降雨量小时起不到补充水分的作用，大雨暴雨时雨水白白流走，并对公路边坡稳定构成威胁．在这样的条件制约下．本研究提出在保护沿线生态环境的前提下，将雨水有效地收集起来，用于公路的植被恢复，既保护了水资源，同时也减少了水害对公路的影响．

High-grade highways in Qinghai Province to the use of water resources technical thinking

Roadside landscaping vegetation establishment in Qinghai province face many difficulties due to the poor natural environment condition,symbolizing by small and concentrating precipitation,strong vapor,and uneven distribution among different areas.Plants can hardly survive and grow,which achieve a poor effect.Little precipitation could not serve as a supplement,while water flow under heavy precipitation and set menace to roadside slope enforcement.The research suggest the plan to collect rain water was carried out to establish roadside vegetation under this circumstances,which can both protect water resources and decrease the negative effect of water.