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FOREST OPERATIONS PLANNING BASED ON HIGH RESOLUTION WET AREAS MAPPING: VERIFICATIONS

FOREST OPERATIONS PLANNING BASED ON HIGH RESOLUTION WET AREAS MAPPING: VERIFICATIONS,Paul Murphy,Mark Castonguay,Jae Ogilvie,Trevor Connors,Paul A. Ar

FOREST OPERATIONS PLANNING BASED ON HIGH RESOLUTION WET AREAS MAPPING: VERIFICATIONS  
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High resolution (5 and 10 m) watershed, flow channel and wet areas maps generated much positive feed-back from forest operations planners and field practitioners. These maps were derived using a GIS process from digital elevation models (DEMs) and hydrographic data. The maps were ground-truthed using a number of methods in two Canadian case studies: one in New Brunswick (an area of mixed wood Acadian forests) and another in Alberta (a hilly area of boreal forest). 88 % of stream culvert locations predicted by the map fell within 40 m of actual locations in New Brunswick and 94 % in Alberta. The index used to map wet areas was found to be positively related to water table depth along transects adjacent to wetlands in New Brunswick and this index was related to the sphagnum boundary around wetlands. In Alberta, rutting was found to occur during summer harvest in areas predicted to be wet.
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