南京城市森林結構特徵與管理對策

隨著我國城市美化運動和生態城市建設的發展，城市森林日益受到學者、政府和民眾的關注，成為改善城市環境的重要因素。本文回顧了城市森林學研究的進展，發現有關城市樹木群落生長特徵及樹木管理的研究在我國較少進行；根據對南京城市森林的抽樣調查結果分析表明，城市樹木樹種構成集聚性明顯而多樣性較差、植株體量偏小、長勢一般，城市擾動因數明顯影響了樹木的自然生長過程；通過對南京城市樹木管理機構 !措施及法規的剖析，指出我國城市樹木管理體系中存在著管理機構職責不明、管理人員知識陳舊和管理法規紛繁複雜卻難以相互銜接、可操作性差等問題，結合國外經驗提出綜合性樹木種植規劃及樹木執行資訊系統是建立現代化城市樹木管理體系的先決條件和首要任務。
In China, urban forest is regarded as primary elements to improve urban environment by scholars, government and the public in the programs of urban beautification and eco-city development. This paper reviewed the researches on urban forest, finding few Chinese references on characteristics and management of urban tree population; sampling surveyed the urban trees in Nanjing, revealing that the tree species composition was dominated by a few of species, tree size was relatively small and tree performance was fair due to impacts of urban stresses to tree growth; diagnosed urban tree management system of Nanjing, pointing out that the unclear authorities and responsibilities of administrative agencies, obsolete knowledge of managers and impractical ordinances were critical problems lessening management efficiency; and presented that comprehensive urban tree planting plan and tree management information system were elements for a modern tree management system with references of experiences of western countries. Copyright © 2004 林業科學編輯部.