Chino Winds Demonstration Project

Table 2. Summary of Selected Cover Attributes, Yavapai Ranch Vegitation Monitoring, 10-Point Frame Data, 1992-98


    Pasture #5   Pasture #14   Pasture #8  
    Ungrazed Grazed An. Imp. Ungrazed Grazed Ungrazed Grazed
Attribute Year Y-1 Y-2 Y-3 Y-4 Y-5 Y-6 Y-7
Canopy cover (>1 cm) 1992 17 20 44 45 37 77 71
Live and dead 1993 25 26 40 57 42 78 62
% 1994 36 23 45 61 52 80 66
  1995 20 9       59 54
  1996     49 63 37 44 5
  1997 15 11 36 60 21 62 56
  1998 25 22 62 81 53 77 71
                 
Soil surface cover                
Liter 1992 16 19 32 41 45 20 15
% 1993 18 20 47 43 43 78 75
  1994 22 24 49 45 43 78 78
  1995 29 21       80 69
  1996     56 67 64 74 51
  1997 30 30 47 51 58 64 69
  1998 22 22 42 56 42 86 81
                 
Green 1992 6 4 16 22 17 0 4
perennial 1993 4 6 18 23 17 1 1
grass 1994 8 5 16 26 26 T 1
% 1995 3 1       1 5
  1996     8 4 3 T T
  1997 2 2 3 5 4 T T
  1998 2 1 5 8 15 0 1
                 
Green vegetation 1992 7 5 18 25 18 9 7
(including 1993 5 8 20 23 17 3 2
cryptogams and 1994 9 6 16 26 27 6 9
annuals) 1995 5 4       1 5
% 1996     8 4 3 1 1
  1997 2 5 11 8 5 8 2
  1998 2 3 16 12 16 5 6
                 
Litter plus 1992 23 24 51 66 62 29 22
green vegetation 1993 23 28 66 67 61 80 77
% 1994 31 30 65 70 70 84 87
  1995 34 25       81 74
  1996     64 71 67 74 53
  1997 31 34 58 60 63 72 71
  1998 24 25 58 69 58 92 87
                 
::                
               
Rock 1992 33 36 T * T 1 T 0
> 2mm diameter 1993 39 38 T 1 T T T
% 1994 45 35 0 T T 0 0
  1995 31 38       T T
  1996     1 T 1 1 T
  1997 34 25 0 T T T 0
  1998 33 33 T 1 T T 0
Bare 1992 42 38 51 34 36 71 78
% 1993 39 33 33 32 39 19 23
  1994 24 35 35 29 30 16 13
  1995 35 37       19 25
  1996     35 29 32 26 47
  1997 35 41 42 40 36 27 29
  1998 43 43 42 31 41 8 13
                 
Distance to 1992 2.1 3.8 1.5 1.0 1.1 >49 >40
nearest perennial 1993 2.6 2.7 1.0 0.7 1.0 >37 >33
plant, inches 1994 2.8 2.8 1.2 1.0 0.5 >32 >40
  1995 2.5 2.3       >34 8.4
  1996     1.1 1.2 1.1 >30 6.0
  1997 3.5 3.2 2.6 1.9 1.4 >32 10.0
  1998 3.7 3 2.9 1.8 1.1 >37 >30
                 
Standard error among 1992              
pin heights, inches 1993 0.4 0.5 0.4 0.5 0.4 0.4 0.4
  1994 0.3 0.4 0.4 0.4 0.5 0.6 0.4
  1995 0.4 0.4       0.4 0.5
  1996     0.6 0.5 0.5 0.6 0.5
  1997 0.4 0.4 0.3 0.6 0.4 0.6 0.4
  1998 0.3 0.4 0.5 0.7 0.5 0.4 0.4
* Trace (< 0.5)                
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