* The Restoration of Grassland Area;

data range;



loc   ec    ir    v      y

---------------------------

1      1     1	  1    30.0

1      1     1	  2    40.9

1      1     2	  1    38.9

1      1     2	  2    38.2

1      2     1	  1    41.8

1      2     1	  2    52.2

1      2     2	  1    54.8

1      2     2	  2    58.2

2      1     1	  1    20.5

2      1     1	  2    26.9

2      1     2	  1    21.4

2      1     2	  2    25.1

2      2     1	  1    26.4

2      2     1	  2    36.7

2      2     2	  1    28.9

2      2     2	  2    35.9

3      1     1	  1    21.0

3      1     1	  2    25.4

3      1     2	  1    24.0

3      1     2	  2    23.3

3      2     1	  1    34.4

3      2     1	  2    41.0

3      2     2	  1    33.2

3      2     2	  2    34.9