In this paper the spatio-temporal variation of vegetation cover in northwest China during the period of 1982-2006 and its driving factors were analyzed using GI
XIA Yong and WANG Yaotian saw a first-year glaucous gull (Larus hyperboreus) at Beihu Lake,Shihezi (a city of Xinjiang Uygur autonomous region;44°22′N,86&