An ecological assessment of riparian land-use regulation, Lane County, Oregon Public Deposited

http://ir.library.oregonstate.edu/concern/graduate_projects/bk128b787

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  • Riparian areas contribute to numerous ecological-maintenance functions and so are often the focus of protection efforts by land and resource management agencies. The riparian land-use regulations of one jurisdiction, Lane County, Oregon, are assessed for effectiveness in protecting ecological functions. Evaluation of the current condition of five elements of riparian function (shade, large woody debris recruitment, vegetation structural complexity, sediment control, and nonpoint-source pollution control) reveals poor current functional ability. Potential future conditions show only marginally reduced functional ability. The conclusion is reached that current and future conditions are below levels that would contribute to sustained ecological function. Poor conditions are attributed to land-use activities prior to the time of the study, not to inadequacies of the county regulations in controlling future riparian alteration. A program of restoration is recommended. Detailed recommendations include an incentives approach in which measurable standards of riparian condition are the criteria for awarding density bonuses, tax credits, or other inducement. In addition, it is recommended that agricultural activities along streams, currently unregulated, be included in the county riparian regulations.
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