The use of criteria and indicator monitoring of ecosystem sustainability to assess ecosystem services on grasslands/ rangelands
Introduction Ecosystem services are benefits people obtain from ecosystems.An international work program and the largest assessment of the world = s ecosystems was launched by UN Secretary,General Kofi Annan,June 2001 ; completed March 2005.The Millennium Ecosystem Assessment (MA),as it was known,was prepared by over 1300 authors in 95 countries.
R.Dennis Child Janette Kaiser Ralph Crawford
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)