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Ouachita River (Sites 4 and 5) 



Location (Ouachita River Basin) - These sites are located in the Felsen- 

 thal National Wildlife Refuge, 8 km west of Crossett and .8 km east of 

 Felsenthal, respectively, in Union County, Arkansas. Reference USGS 

 map, Felsenthal, Arkansas-Louisiana, N3300-W9200/15 , 1981. 



Hydrology data - Nineteen years of hydrology data were obtained for a 

 gauge on a U.S. Highway 81 bridge, 8 km west of Crossett, Arkansas. A 

 slope correction for site 5 was determined using a water surface pro- 

 file. Site 4 was adjacent to the gauge, so no correction was necessary. 



General vegetation - Plant communities range from a Taxodium distichum- 

 Cephalanthus occidental Is dominated community in lower areas to a nearly 

 monotypic stand of Pinus taeda in higher areas. Intermediate communi- 

 ties are dominated Carya aquatica , Quercus lyrata , Diospyros virginiana , 

 Quercus phellos , Quercus nuttallii , and Liquidambar sCyraciflua. 



Soils and climate - All encountered soils are in the Una series. Aver- 

 age annual rainfall is 140 cm and the average growing season is 

 211 days. 



Delineated zones - Only Zones 3 and 4 were delineated for both sites 4 

 and 5. Zone 2 was not used because the hydrology was not reflected by 

 the gauge data. Zones 5 and 6 were not used due to major disturbances 

 from recent silvicultural and agricultural practices. 



