Remote sensing to detect deterioration of Flooding Pampa rangeland by the use of glyphosate

摘要：

Introduction A technique based on spraying glyphosate to Flooding Pampa′s rangelands in late summer has been widespread during the last decade.This technique eliminates green vegetation growing in late summer with the aim of improve germination and establishment of cool season (C3) annual grasses,which,in turn,increases winter forage offer and allows increment of meat production.We postulate that this technique would negatively affect plants that vegetate in summer,causing changes in the seasonal pattern of above-ground net primary production (ANPP).Considering that ANPP of Flooding Pampa′s grasslands can be accurately estimated using the spectral information provided by remote sensing ( Pineiro et al,2006,Grigera et al,2007),we used the amount of photosynthetically active radiation absorbed ( APAR) by the capopy to compare the seasonal pattern of the APAR of non-treated vs.glyphosate-treated rangelands.

关键词： temperate grasslands photosynthetically active radiation absorbed seasonal variation

作者: Jacobo,E Rodriguez,A Heinrich,N Fraschino,L

作者单位: Departamento de Producción Animal,Facultad de Agronomía,Universidad de Buenos Aires.Av.San Martín 4453,Buenos Aires 1417,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）