8Akbari H, Rose S L, Taha H, Analyzing the land cover of an urban environment using high-resolution orthophotos[J]. Landscape and Urban Planning,2003,63(1): 1-14.
9Steven P, Ireen W. Key steps to developing local Green roof infrastructure roof markets[R]. Chicago: First Annual Greening Rooftops for Sustainable Communities Conference, Awards and Trade Show,2003.
10Benjamin T. City of atlanta green roof demonstration project[R]. Chicago: First Annual Greening Rooftops for Sustainable Communities Conference, Awards and Trade Show,2003.