Sources, Instream Transport, and Trends of Nitrogen, Phosphorus, and Sediment in the Lower Tennessee River Basin, 1980-96

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                                                            Percentage of basin area in subunit or land use/land cover
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                                                                 Subunit                                        Land use/land cover
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                                                                                             Plateau
                                                      Western Outer   Inner   Eastern         Escarp-           Agriculture 
  Site                                                 High-  Nash-   Nash-    High-  Cumber-  ment          _________________
 number                              Coastal  Tran-    land   ville   ville    land    land     and                    Culti-
(fig. 2) Surface-water station name   Plain   sition    Rim   Basin   Basin     Rim   Plateau Valleys  Forest Pasture  vated  Urban   Other
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 1  Clarks River at Almo, Ky.	         95	0	 5	0	0	 0	0	0	14	58	20	3	 5
 2  Buffalo River near Flat Woods, Tenn.  0	1	99	0	0	 0	0	0	68	25	 4	0	 3
 3  Duck River below Manchester, Tenn.	  0	0	 0	1	0	99	0	0	18	45	16	1	20
 4  Duck River below Normandy, Tenn.	  0	0	 0     34	0	65	0	0	35	42	 9	1	13
 5  Duck River at Williamsport, Tenn.	  0	0	 1     49      39	11	0	0	34	56	 5	1	 4
 6  Duck River above Hurricane Mills,     0	0	34     36      24	 7	0	0	47	45	 4	1	 3
       Tenn.
 7  Shoal Creek at Highway 43 near 	  0	0      100	0	0	 0	0	0	42	46	 8	2	 2
       Lawrenceburg, Tenn.
 8  Shoal Creek at Iron City, Tenn.	  0	1	99	0	0	 0	0	0	59	34	 4	1	 2
 9  Elk River below Tims Ford Dam, Tenn.  0	0	 0     11	0	64     14      12	42	41	11	1	 5
10  Elk River near Prospect, Tenn.	  0	0	 7     61	0	24	5	3	44	47	 6	0	 3
11  Flint Creek near Falkville, Ala.	  0	0	 0	0	0	14	0      85	56	40	 2	0	 2
12  Town Creek near Geraldine, Ala.	  0	0	 0	0	0	 0	0     100	31	57	10	0	 2
13  Sequatchie River at Valley Road,  	  0	0	 0	0	0	 0     64      36	67	29	 2	0	 2 
       Tenn.
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