7ROBINSON F B. Planting design[M].New York:Florence Bell,1940.
8BRAIN H. Planting design[M].London:E. & F.N.Spon,1979.
9YI Y,CHANG G Z. Ecotype and regional division of afforestation plants in China[J].Agricultural Science & Technology,2010,(01):173-175,185.doi:10.3969/j.issn.1009-4229-B.2010.01.050.