摘要:Measurement of spatio-temporal distribution of quantitative variables like leaf area index (LAI) and biomass arevaluable for assessing the health and productivity of tropical grasslands. 1 Several studies (e.g. Prins and Beekman 2 )have associated vegetation characteristics such as LAI and biomass with animal grazing patterns. Therefore,quantitative assessment of such characteristics offers great potential for determining grassland conditions, whichis useful for generating optimal management guidelines for grazing and rangeland conservation and restoration.