Silvopastoral systems:estimation of understory winter grass productivity by remote sensing

摘要：

Introduction Silvopastoral systems combine forest production with pastoral use of the understory.Most rangelands of the Flooding Pampas are dominated by C4 species ( Perelman et al.2001),which determines a low quantity and quality of forage supply during winter,a critical period for livestock production (Paruelo et al.2001).Clavijo et al.(2005) found a lower live herbaceous plant cover,and a lower absolute ground cover of C３ species but a higher proportion of C3 than C4 species in sites afforested with poplars in comparison with the open grassland.This indicates that planting deciduous trees may constitute an alternative for revert the dominance of warm season grasses and therefore increase winter productivity.

关键词： NDVI (Normalized Difference Vegetation Index) rangeland afforestation basal cover C3 plants

作者: L.Granieri P.Cornaglia R.Golluscio M.Oesterheld

作者单位: Facultad de Agronomía,Universidad de Buenos Aires,Av.San Martín4453 (1417),Buenos Aires,Argentina

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）