%0 Journal Article %T A Rule-based Land Cover Classification Method for the Heihe River Basin %A HOU Yuting %A WANG Shugong %A NAN Zhuotong %D 2011 %J Acta Geographica Sinica %P 549-561 %V 66 %N 4 %U {http://www.geog.com.cn/EN/10.11821/xb201104011} %8 2011-04-20