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Table A -8. Production Data - Sagebrush Reference Area, Seneca II Mine, <br />Seneca Coal Company, Routt Co., CO - 2011 <br />PLANT SPECIES <br />AVERAGE AVERAGE <br />PRODUCTION PRODUCTION FREQUENCY <br />(gm. /0.5 sq. m.) (14s /acre) M 1 <br />Page 1 of 2 <br />PRODUCTION (gm /0.5 sq. m.)* <br />-- Sample Number-- - <br />4 5 6 7 8 9 10 11 12 13 14 <br />TOTAL NATIVE ANN. & BIEN. FORBS <br />1.6 <br />28.6 <br />833 <br />1.2 <br />0.2 <br />P <br />P <br />9.7 <br />6.6 <br />- -- <br />2.6 <br />P <br />2.9 <br />7.4 <br />0.4 <br />1.0 <br />1.9 <br />TOTAL INTRO. ANN. & BIEN. FORBS <br />0.9 <br />16.1 <br />76.7 <br />P <br />P <br />5.8 <br />- -- <br />- -- <br />0.4 <br />0.9 <br />0.6 <br />2.7 <br />P <br />P <br />1.0 <br />- -- <br />P <br />TOTAL NATIVE PERENNIAL FORBS <br />41.1 <br />733.4 <br />100.0 <br />102.4 <br />24.7 <br />32.9 <br />16.5 <br />63.8 <br />30.2 <br />34.7 <br />36.3 <br />63.3 <br />67.7 <br />52.5 <br />32.4 <br />40.5 <br />68.3 <br />TOTAL INTRO. PERENNIAL FORBS <br />0.2 <br />3.6 <br />23.3 <br />- <br />- <br />- -- <br />- -- <br />P <br />- -- <br />- -- <br />- -- <br />- -- <br />- <br />-- <br />0.2 <br />- -- <br />0.9 <br />TOTAL NATIVE PERENNIAL GRASSES (c) <br />25.7 <br />458.6 <br />100.0 <br />18.4 <br />18.7 <br />13.4 <br />17.2 <br />2.6 <br />14.5 <br />33.2 <br />38.4 <br />5.8 <br />14.7 <br />55.9 <br />7.5 <br />44.2 <br />14.2 <br />TOTAL INTRO. PERENNIAL GRASSES (c) <br />2.6 <br />46.4 <br />13.3 <br />-- <br />- <br />- -- <br />31.0 <br />- -- <br />-- <br />- -- <br />- -- <br />25.9 <br />- -- <br />- -- <br />-- <br />-- <br />- -- <br />TOTAL PRODUCTION <br />72.1 <br />1286.5 <br />122.0 <br />43.6 <br />52.1 <br />64.7 <br />76.1 <br />51.7 <br />68.8 <br />77.9 <br />97.7 <br />85.3 <br />115.8 <br />41.5 <br />85.7 <br />85.3 <br />Standard Deviation <br />SPECIES DENSITY (# of species /100 sq.m.) <br />(AVERAGE= 4.0 Std.Dev.= 0.7) <br />22.6 <br />403.3 <br />4 <br />4 <br />4 <br />4 <br />4 <br />4 <br />3 <br />4 <br />5 <br />4 <br />4 <br />5 <br />3 <br />5 <br />*P= Present with an average of less than 0.1 grams /0.5 sq. m. <br />