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prepared by Grant Hamilton
Developed by the USDA Agricultural Resource Service (ARS) Jornada Experimental Range, the Monitoring Manual for Grassland, Shrubland and Savanna Ecosystems is intended to provide guidance for rangeland managers following monitoring protocols established by the Bureau of Land Management's Assessment, Inventory and Monitoring (AIM) Strategy or
Natural Resources Conservation Service's National Resources Inventory (NRI) for non-federal rangelands.
Core methods generate indicators which represent the minimum information necessary to describe three key ecosystem attributes: soil and site stability, watershed function, and biotic integrity. For this reason, the ARS recommends all public land managers follow the core monitoring protocols without modification. Detailed descriptions of the core methods can be found in Volume I of the Monitoring Manual. Core monitoring methods consist of the following procedures:
Supplemental methods may be included when the core methods are insufficient to inform a particular management objective. These additional methods are not intended to replace the core methods. Instead they provide additional information necessary to answer local management questions. Supplemental methods in conjunction with the core methods allow these data to be used for multiple management objectives by providing basic ecosystem attribute information while also meeting local monitoring needs. Detailed descriptions of the supplemental methods can be found in Volume II of the Monitoring Manual.
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