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用植树绿化的方法治理河道和保护堤防,早在《管子·度地篇》内就提出:树以荆棘,以固其地;杂以柏杨,以备决水”。说明在河渠堤防乔灌木混生林带造林绿化,其作用就是固土护堤,解决防汛堵口。明代刘天和管理河务期间,一年曾植树280万株,总结堤防植树经验,提出了著名的“植柳六法”,有卧柳、编柳、低柳、深柳、漫柳、高柳。他并指出河岸植柳的作用是:“内则根株固结,外则枝叶绸缪,虽风浪冲激,可保无虞”。清代河道总督靳辅评价刘天和植树六法时说;“曲尽其微妙,当仿其法而行之”。总之,堤防绿化,可以固土护堤,保护水利工
As for the management of rivers and the protection of embankments by tree planting and afforestation, as early as in “The Pipe and Soil”, it was proposed that the tree be thorny and solidly covered with Bo Yang to prepare the water. Mixed forest with afforestation, its role is to protect the earth dike, to prevent flood blocking.Liu Tianhe management during the Ming Dynasty, 2.8 million trees planted a year to summarize the embankment tree planting experience, put forward the famous “Six Willow planting method” There willow, willow, low willow, deep willow, Manliu, Gao Liu.He also pointed out that the role of riparian planting willow is: “within the root of the root consolidation, outside the branches and shoots, although the storm waves, can be no risk” The governor of the Qing Dynasty River, Jin Fu, commented on the proposal of Liu Tianhe and his plan of planting six trees: “The song is subtle and should be imitated according to the law.” In short, embankments and greening can be used for embankment protection and water conservancy