Table 5: Historical trend in. stand composition and water yield,
<br />Lodgepole Pine.
<br />Acres Lodaepole Pine by Size and Year
<br />Date
<br />Water
<br />Yield
<br />Non-
<br />stocked
<br />Seedling/
<br />Sapling
<br />Pole
<br />Sawtimber
<br />Total
<br />1860
<br />14.2
<br />278,519
<br />91,503
<br />257,940
<br />23,222
<br />627,963
<br />1880
<br />12.4
<br />13
<br />370,009
<br />32,621
<br />257,940
<br />627,963
<br />1900
<br />14.2
<br />257,940
<br />278,520
<br />91,503
<br />627,963
<br />1920
<br />13.0
<br />529,926
<br />98,036
<br />627,963
<br />1940
<br />11.8
<br />257,940
<br />370,023
<br />32,621
<br />627,963
<br />1960
<br />11.3
<br />32,621
<br />157,035
<br />379,423
<br />91,503
<br />627,963
<br />1980
<br />11.6
<br />91,503
<br />529,926
<br />6,532
<br />627,963
<br />20001
<br />11.3
<br />6,532
<br />91,5031
<br />257,9401
<br />271,986
<br />627,963
<br />Table 6: Historical trend in stand composition and water yield, Spruce -
<br />Fir. _
<br />Acres Spruce -Fir by Size and Year
<br />Date
<br />Water
<br />Yield
<br />Non-
<br />stocked
<br />Seedling/
<br />Sapling
<br />Pole
<br />Sawtimber
<br />Total
<br />1860
<br />20.3
<br />35,617
<br />247,269
<br />0
<br />23,222
<br />306,108
<br />1880
<br />19.7
<br />39,958
<br />233,528
<br />32,621
<br />2,994
<br />306,108
<br />1900
<br />19.2
<br />2,994
<br />273,486
<br />32,621
<br />306,108
<br />1920
<br />18.0
<br />176,548
<br />129,560
<br />306,108
<br />1940
<br />16.4
<br />41,023
<br />232,463
<br />32,621
<br />306,108
<br />1960
<br />16.8
<br />32,621
<br />250
<br />273,236
<br />306,108
<br />1980
<br />16.7
<br />32,621
<br />269,333
<br />4,153
<br />306,108
<br />2000
<br />16.51
<br />3,4771
<br />32,621
<br />39,958
<br />230,051
<br />306,108
<br />Table 7: Historical trend in stand composition and water yield,
<br />Ponderosa Pine.
<br />Acres Ponderosa Pine by Size and Year
<br />Date
<br />Water
<br />Yield
<br />Non-
<br />stocked
<br />Seedling/
<br />Sapling
<br />Pole
<br />Sawtimber
<br />Total
<br />1860
<br />6.0
<br />83,769
<br />1,086
<br />2,994
<br />87,849
<br />1880
<br />4.0
<br />84,856
<br />2,994
<br />87,849
<br />1900
<br />3.3
<br />2,994
<br />84,856
<br />87,849
<br />1920
<br />3.3
<br />86,763
<br />1,086
<br />87,849
<br />1940
<br />2.1
<br />2,994
<br />84,856
<br />87,849
<br />1960
<br />2.1
<br />87,849
<br />87,849
<br />1980
<br />2.1
<br />1,086
<br />82,947
<br />3,816
<br />87,849
<br />2000
<br />2.3
<br />3,816
<br />1,0861
<br />2,994
<br />79,953
<br />87,849
<br />35
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