苏州市区空气污染对园林香樟、枫香植物生长的影响

Impact on the Plant Growth of Camphorwood and Sweetgum in Gardens by the Air Pollution of Suzhou Urban District

本文测定了苏州市区园林和郊区香樟、枫香的光合作用、叶绿素含量、新梢长度、叶片长度与叶片宽度等生长因子，发现市区园林植物生长均受到抑制，其原因是空气污染造成。提出了调整产业结构、集中供热、点源和面源控制、地面扬尘以及汽车尾气控制的整治措施，加以根治苏州市区空气污染，改善城市生态环境。

Through determining the growth factors of photosynthesis,chlorophyll content,new treetop length,leaf length and leaf width of camphorwood and weetgum in Suzhou urban district gardens and suburban districts,it is discovered that all plant growth factors in urban gardens have been inhibited by air pollution.This paper puts forward such measures as adjusting industrial structure,centralized heat supply,controlling point pollution sources and non-pint sources,and controlling ground dust and automobile tail gas with the purpose to solve the air pollution of Suzhou urban district permanently and to improve urban ecological environment.