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Study on the effect of highway construction on photosynthetic rate of roadsides plant in Longitudinal Range-Gorge Region
作者姓名:LIU  Jie  CUI  Baoshan  DONG  Shikui  ZHU  Jianjun  YAO  Weike
作者单位:School of Environment, Beijing Normal University; State Key Laboratory of Water Environmental Simulation, Beijing 100875, China
基金项目:This work was supported by the National Basic Research Program of China (Grant No.2003CB415104).
摘    要:A case study was conducted on Dabao (from Dali city to Baoshan city) and Sixiao (from Simao city to Xiaomengyang town) highways in Longitudinal Range-Gorge Region to investigate the effect of highway construction on photosynthetic rate of roadsides plants. The dominant species in the plant communities were selected to measure the variation of their photosynthetic rate with the distance to the highway, so as to analyze the effect of highway construction on photosynthesis and growth of roadside plants by using mathematic methods including contrast analysis, regress analysis and so on. Results indicate: (1) Highway construction reduced the plant photosynthetic rate of the arbor and crop, and improved the plant photosynthetic rate of the shrub and herbage; (2) highway construction directly affected the plant photosynthetic rate through changing the structure of plant community and living state of plant, and indirectly affected the plant photosynthetic rate through changing its environmental factors; (3) the location and topography of road are also important factors affecting plant photosynthetic rate on roadsides, the influencing incidence and intensity on plant photosynthetic rate under different topographies caused by the two selected highways were obviously different.

关 键 词:光合作用率  高等级公路建筑  路边植物  筑路地质学
收稿时间:2005-12-16
修稿时间:2005-12-162006-05-08

Study on the effect of highway construction on photosynthetic rate of roadsides plant in Longitudinal Range-Gorge Region
LIU Jie CUI Baoshan DONG Shikui ZHU Jianjun YAO Weike.Study on the effect of highway construction on photosynthetic rate of roadsides plant in Longitudinal Range-Gorge Region[J].Chinese Science Bulletin,2006,51(B11):59-68.
Abstract:
Keywords:roadside plant  photosynthetic rate  highway construction  Longitudinal Range-Gorge Region  
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