States develop guidelines to protect and manage forest riparian resources. A review of 37 eastern states' forest riparian guidelines (e.g., BMPs, regulations) for timber harvesting revealed the primary focus is water quality protection adjacent to perennial and intermittent streams and lakes. A commonly recommended riparian management zone is 50-foot wide with 50-75 percent crown closure (or 50-75 ft2/acre of residual basal area), although the specific guidelines in each state vary tremendously. Additional values which increase the width of the riparian management zone are based on: (1) waterbody size, (2) slope of the ground adjacent to the waterbody, or (3) by incorporating slope effects with waterbody size or soil erodibility. While science cannot specify the management prescriptions needed to protect all riparian functions across all sites, understanding site-specific conditions can facilitate effective guideline implementation. There is a need for additional research within these areas to address a variety of questions.
|Original language||English (US)|
|Number of pages||15|
|Journal||Water, Air, and Soil Pollution: Focus|
|State||Published - 2004|
Bibliographical noteFunding Information:
Project support was provided by the University of Minnesota’s Department of Forest Resources, the University of Minnesota Extension Service, the Minnesota Agricultural Experiment Station under Projects MN 42–042 and MN 42–049, and the Minnesota Forest Resources Council.
- Best management practices
- Riparian management
- Riparian management zone
- Streamside management zone
- Timber harvesting