Increase abundance of plant:at present,the plant variety being applied inChangchun residential quarters is not more than 40,but in fact more than 100 plant varietycan be used,and more local plant not being used. Undoubted it is a waste to plant resource.

• 应增加植物的丰富度:目前,长春市住宅小区绿化所使用的植物种类(不包括一年生草花)最多也不过40种,但实际可以应用的植物种类不下100种,还有很多好的乡土植物没有得到应用,这无疑是一种资源的浪费。