00397nam a2200133 a 450000500170000002000150001708200130003210000180004524500450006326000480010830000220015649000670017870000180024520251203091930.0  a0521578108  a577bGLO  aWalker, Brian  aGlobal change and terrestrial Ecosystems  aCambridgebCambridge University Pressc1996  axvi,619p.c24 cm.  aInternational Geosphere-Biosphere Programme Book series, Vol.2  aSteffen, Will