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落羽杉属是世界上最古老的残遗树种之一,在新生代第四纪冰川期以前(距今100万年),广布于欧洲和美洲,现保存有三个种,即池杉、落羽杉、墨西哥落羽杉。前两种分布于北美洲的东南部,后一种分布于墨西哥中部亚热带地区。属杉科,速生乔木,具有生长快、材质好、耐水湿、抗性强、繁殖容易、干形通直、树形美观、树冠较窄、病虫害少等特点。适宜于在深厚肥沃排水良好的砂质壤土上生长,在湖泊周围、河流两岸以及经常积水的低湿地方,亦生长良好。池杉耐水性最强,被列为Ⅰ级。我国南京地区早在1917年就
Taxodium is one of the oldest remnant species in the world. Before the Cenozoic Quaternary glaciation (1 million years ago), it was widely distributed in Europe and the Americas. There are now three species of Taxodium Mexican Taxodium. The first two are located in southeastern North America, the latter located in the central subtropical region of Mexico. Cunninghamia lanceolata, fast-growing trees, with fast growth, good material, water wet, strong resistance, easy propagation, stem straight, beautiful tree, narrow canopy, fewer pests and diseases. It is suitable for growing on well-fertile, well drained sandy loam. It also grows well in the wetlands around the lakes, on both banks of the river and on the regular water table. Ipomoea seawater strongest, was classified as Ⅰ level. As early as 1917 in Nanjing, China