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Soils - Primary factor in potential for site to support regeneration 



(moisture, thickness, fertility). 



Topography - Greatly influences capacity for regeneration in an 



area. 



e. Groundwater 



Water table - Areas of high water table (some marshes, etc.) may be 

 more sensitive to harvest activities. 



f. Watershed Hydrology 



Regime stability - Condition of channels 



Precipitation events - Expected intensity, duration, and frequency; 



relationship of vegetation manipulation and runoff. 



Capacity of receiving water to absorb changes - Increased sediment 



loads, increased water yields, temperature changes, chemical changes, 



nutrient changes, other pollutants. 



Man-Caused Limitations 



a. Historical land use activities 



Type of activities - Timber harvest, grazing, road construction, etc. 

 Extent of activities - Acreage involved within watershed. 

 Coordination of acitivities - Location, timing, duration 



b. Condition of Receiving Waters 



Cumulative effects of land use activities - Impacts to stream water quality. 

 Tolerances for additional impacts - Increased sediment load, increased 

 water yields, chemical and nutrient changes, other 



Watershed management objectives - Defined by state agencies (Fish and Game, 

 Health and Environmental Sciences). 



