Can riparian reserve boundaries and management guidelines be modified to allow more management options while meeting conservation objectives?
The interim riparian reserves under the Northwest Forest Plan cover at least 75% of the federal land area in the Oregon Coast Range. Many activities, including most timber harvest, are not allowed in the reserves unless they can be clearly shown to benefit aquatic habitat conditions. Guidelines allow for modification of reserve boundaries after watershed analysis, but the effects of many different management activities on stream habitats are not well known. What is the most effective method for increasing structure in streams for fish habitat? Large conifer logs are the longest lasting and best providers of structure in streams, but most streams in the AMA are dominated by hardwoods. Several projects to reintroduce a component of conifers in riparian zones have been initiated, but we don’t know how successful they will be in the long term, whether focusing our efforts on tributary headwalls or stream-sides would be more effective, or whether hardwood-dependent wildlife (for example, ne
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