National rangeland monitoring and inventory of Iran
Introduction Information for sustainable utilization of rangeland requires accurate and frequent range assessment.Such information will be obtained from monitoring in the long term ( Watson 2007 ) which is important for government agencies,range holders and application of remote sensing ( RS) and geographic information systems ( GIS).Changes in quantitative parameters,including abundance,vegetation composition,canopy cover and yield,are influenced by climatic conditions and management activities ( Arzani and Abedi 2006 ).So distinguishing and separating these is important for better management (Anderson and Holte,1981).The objective of this research was to investigate variation of vegetation parameters in the long term and to determine trend and severity of changes.
monitoring vegetation cover site satellite data
H.Arzani M.Azimi H.Kaboli M.Farahpour
University of Tehran Research institute of Forests and Rangelands
国际会议
呼和浩特
英文
2008-06-29（万方平台首次上网日期，不代表论文的发表时间）