山区高速公路绿化生态效益评估

摘要

In order to evaluate ecological benefits produced by greening on expressways , this paper selects 3 indices, i.e.conservation of water and land , carbon fixation and oxygen release and purification of air . The paper proposes an evaluation method for ecological benefits via literature research and formula derivation and calculates the ecological benefits of greening on Sinan -Zunyi Expressway in Guizhou Province by means of this method .The results show that greening on Sinan -Zunyi Expressway creates significant ecological values; and the accumulative ecological benefits produced after implementation of greening for 5.17 years can approximate construction and installation costs of the greening project .%为评估高速公路绿化所产生的生态效益，选取水土保持、固碳释氧、净化空气3个指标，通过文献调研和公式推导，提出生态效益评估方法，并应用该方法对贵州省思遵高速公路绿化的生态效益进行计算。结果表明：思遵高速公路绿化创造了较可观的生态价值；在绿化实施5．17年后，累计产生的生态效益能够与绿化工程建安费持平。