Rangeland ecology and management in a changing world
Rangeland ecological science and management over the past century has emphasized external human actions to supplement and direct natural ecological processes in the hope of achieving sustained production.The focus has usually been on an improved efficiency of production, generally achieved by adding fossil fuel based inputs, to increase consistency of harvest.The results have been relatively benign in the more mesic and fertile rangelands and unsuccessful to disastrous in the more arid and infertile areas.We suggest a broader view of the interactions of humans and rangelands, one that includes people as a vital component within the system,might be a more realistic approach to achieving economic,ecological and social sustainability.An increased emphasis is necessary to develop new tools for capturing, organizing and communicating information and to provide testable hypotheses that can advance rangeland ecological science and management.
ecological site descriptions state and transition models multiscale management ecological disturbance
Joel R.Brown Brandon Bestelmeyer
USDA Natural Resource Conservation Service MSC 3 JER,PO Box 30003,New Mexico State University,Las Cr USDA Agricultural Research Service Jornada Experimental Range,MSC 3 JER,PO Box 30003,New Mexico Stat
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）