01981nam a2200433 a 450000100080000000500110000800800410001910000210006024501050008126002130018630000180039949000100041752006130042765000160104065000190105665000130107565000210108865000230110965000180113265000250115065000210117565000270119665000250122365000130124865300180126165300090127965300240128865300240131265300270133665300250136365300150138865300220140365300190142570000200144470000160146470000200148070000220150070000250152214971332025-03-25       2008    bl uuuu     u00u1 u    #d1 aAMARAL, E. F. do  aZoning of risk of death of Brachiaria brizantha in the state of Acre, Brazil.h[electronic resource]  aIn: INTERNATIONAL GRASSLAND CONGRESS, 21.; INTERNATIONAL RANGELAND CONGRESS, 7., 2008, Hohhot. Multifunctional grasslands in a changing world: proceedings. Guangzhou: Guangzhou People's Publishing Housec2008  ap. 725. v. 1,  vv. 1,  aThe establishment of cultivated pastures is the main cause of deforestation in the Brazilian Amazon. In Acre, cultivated pastures represent ８2,5％ of the total area deforested. Since 1994, farmers in the Brazilian Amazon started to observe the death of marandugrass (Brachiaria brizantha) in some pastures under poorly‐drained soils, a process that have caused widespread degradation of pastures in the region. The objective of this study was to define zones of risks of death of marandugrass as a support decision tool for policymakers and farmers in dealing with this problem in the Brazilian Amazon .  aAcclimation  aForage grasses  aPastures  aSoil degradation  aUrochloa brizantha  aAclimatação  aBrachiaria brizantha  aCapim Brachiaria  aDeterioração do solo  aGramínea forrageira  aPastagem  aAclimatación  aAcre  aAmazonia Occidental  aAmazônia Ocidental  aDegradación del suelo  aPalisade signalgrass  aPastizales  aPastos forrajeros  aWestern Amazon1 aVALENTIM, J. F.1 aLANI, J. L.1 aBARDALES, N. G.1 aARAÚJO, E. A. de1 aANDRADE, C. M. S. de