[Zhou, Guoxiong; Chen, Aibin; Tang, Zhiwen] Cent South Univ Forestry & Technol, Coll Comp & Informat Engn, Changsha 410004, Hunan, Peoples R China.
[He, Xinyu] Cent South Univ Forestry & Technol, Coll Bangor, Changsha 410004, Hunan, Peoples R China.
[Wang, Yanfeng] Natl Univ Def Technol, Changsha 410015, Hunan, Peoples R China.
[Li, Liujun] Univ Idaho, Dept Soil & Water Syst, Moscow, ID 83844 USA.
[Hu, Yahui] Acad Agr Sci, Plant Protect Res Inst, Changsha 410125, Hunan, Peoples R China.