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Report: Final Report 2003/04 Rare and Sensitive Ecosystem Inventory Pilot Project Weyerhaeuser, West Island Timberlands

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Weyerhaeuser conducted a Sensitive Ecosystem Inventory for TFL 44. This is a pilot GIS project to determine whether or not the Sustainable Forestry Management plan objectives for conserving rare or sensitive ecosystems could be met with existing data such as, Terrestrial Ecosystem Mapping, forest cover and other relevant data and reserves regulations for some of the ecosystems in previous SEI inventories (e.g. riparian, wetland, old forest)

Author:  Bill Beese and Aaron Fujikawa

Old Reference System:  none

Date Published:  Mar 2004

Report ID:  33872

Audience:  Government and Public

A rare and sensitive ecosystem theme was created in Weyerhaeusers GIS for identifying areas with high conservation value. The layer was built by extracting data from existing GIS coverages. The primary data sources were Terrestrial Ecosystem Mapping (TEM) at 1:20000 scale on a TRIM (NAD 83) base, and following the Resource Inventory Standards Committee (RISC) standards for Survey intensity level 4; Forest Cover (FC) including age class and species composition of forested areas, rock outcrops, swamps and other sparsely vegetated features; and BC Conservation Data Centre (CDC) listings of threatened, endangered or vulnerable plant communities. Procedures were developed in 2002/03 using a portion of TFL 44 for which TEM mapping was available (approximately 165k ha) to produce preliminary maps. The CDC was consulted on methodology, and reviewed the draft standards (RISC 2002). Once the process for building the rare and sensitive ecosystem theme was documented and tested, field surveys were conducted in 2003 on four 1:20,000 map sheets. The results of field tests were used to revise the GIS procedures and update specific map units. Final maps were then produced for all of TFL 44 (over 277k ha).

Report Type
  Terrestrial Information
  Biogeoclimatic Zone - CWH Coastal Western Hemlock Zone
  Terrestrial Information - Sensitive Ecosystem Inventory (SEI)

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