Zoning of risk of death of Brachiaria brizantha in the State of Acre,Brazil

摘要：

Introduction The 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 (ACRE,2006).Since 1994,farmers in the Brazilian Amazon started to observe the death of marandugrass ( Brachiaria briz antha) in some pastures under poorly-drained soils,a process that have caused widespread degradation of pastures in the region ( Andrade & Valentim,2007).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.

关键词： Amazon mapping marandugrass p asture degradation soil drainage

作者: Eufran Ferreira do Amaral Judson Ferreira Valentim Joāo Luiz Lani Nilson Gomes Bardales Edson Alves de Araújo Carlos Mauricio Soares de Andrade

作者单位: Secretaria de Estado de Meio Ambiente do Acre,Rua Rui Barbosa,135,Centro,CEP 69900-120,Rio Branco,A Embrapa Acre Universidade Federal de Vicosa Secretaria de Estado de Meio Ambiente do Acre,Rua Rui Barbosa,135,Centro,CEP 69900-120,Rio Branco,A

会议类型: 国际会议

会议名称: 2008世界草地与草原大会

会议地点: 呼和浩特

会议语种:英文

在线出版日期: 2008-06-29（万方平台首次上网日期，不代表论文的发表时间）