当前已经形成一种关于树木的全新观念,称之为“新的树木生态学”,是美国农业部所属研究部门的最新研究成果。 美国国家植物园的遗传学家桑特摩宣称:“运用这种新观念,可使公共街道上的树木生长得更茁壮更安全。”桑特摩和原在森林局工作的植物病理学家西戈两人,是这门新的树木生态学的权威泰斗,他们打算把照料树木的方法从旧传统中摆脱出来。 A new concept of trees has now emerged that calls it “new tree ecology,” the latest research by the research department of the USDA. Sante Marmo, a geneticist at the National Arboretum, declared: “With this new concept, the trees in public streets can grow more robust and safer.” Santo and former plant pathologist Siguar The two men, the authoritative defender of this new tree ecology, intend to free themselves from the old tradition of caring for trees.