Restoring rain use efficiency to an incised upland valley system in Namibia using filters and Ecosystem Management Understanding(EMU)principles

摘要

@@Introduction Proactive management to avoid degradation is a worthy ideal for rangelands.However,managing the legacy of historic degradation is equally important and therefore requires an assessment of resource allocation between avoiding new degradation and repairing problems from the past.Quite clearly,avoiding future degradation should be a priority,but the benefits of repairing key productive landscapes should not be overlooked.Using principles within the Ecosystem Management Understanding (EMU) Process,and with the local farmers.encouragement,we developed a trial restoration project of an upland fertile valley system in the Auas-Oanob Conservancy.