[Liao, Wei] Hunan Agr Univ, Coll Hort, Changsha 410128, Peoples R China.
[Liao, Wei] Hunan Univ Finance & Econ, Sch Engn Management, Changsha 410205, Peoples R China.
[Guldmann, Jean-Michel] Ohio State Univ, Dept City & Reg Planning, Columbus, OH 43210 USA.
[Hu, Li; Gan, Dexin; Li, Xiaoma] Hunan Agr Univ, Hunan Prov Key Lab Landscape Ecol & Planning & Des, Coll Landscape Architecture & Art Design, Changsha 410128, Peoples R China.
[Cao, Qiongwen] Hunan Sany Polytech Coll, Sch Bldg Ind, Changsha 410129, Peoples R China.