大规格苗木抢手 目前,为了在当年就能获得良好的生态效益,取得理想的绿化效果,全国大小城市都开始栽植大规格的绿化苗木。来自上海的一份报表显示,乔木用量排在前10位的香樟、广玉兰、雪松樟树、水杉、银杏等,要求规格在6厘米以上的苗木供应比较紧张。为了筹备2008年奥运会,北京近两年的城市绿化所用苗木几乎都是大规格的。有的西部城市也提出要打破常规种植方式,“以金钱换时间”, At present, in order to obtain good ecological benefits in the current year and to obtain the ideal greening effect, large-sized green seedlings are planted in large and small cities all over the country. A report from Shanghai shows that the amount of trees ranked top 10 camphor, Magnolia grandiflora, cedar camphorata, Metasequoia, ginkgo, etc., require specifications in more than 6 cm seedling supply more nervous. In preparation for the 2008 Olympic Games, almost all the seedlings used in urban greening in Beijing in recent two years are large-scale. Some western cities also proposed to break the conventional planting methods, “to change the time with money”