There are some references:

Smith, J., P. Smith and T. Addiscott.  1996. Quantitative methods to
evaluate and compare soil organic matter (SOM) models. In Evaluation of
Soil Organic Matter Models. D.S.

Whitmore, A.P. 1991.  A method for assessing the goodness for computer
simulation of soil processes. J. Soil Sci. 42: 289-299.

Addiscott, T.M. and Whitmore, A.P. 1987. Computer simulation of changes
in soil mineral nitrogen and crop nitrogen during autumn, winter and
spring.  J. Agric. Sci. Camb. 109:141-157.

Loague, K. and R.E. Green. 1991. Statistical and graphical methods for
evaluating solute transport models: Overview and application. J.
Contamin. Hydro. 7:51-73.


Hong
-----Original Message-----
From: DSSAT - Crop Models and Applications
[mailto:[log in to unmask]] On Behalf Of Bahram Andarzian
Sent: February 27, 2006 11:11 PM
To: [log in to unmask]
Subject: Variance Analysis

   Dear all my friends
  Hi
  When a model run for different treatments, such as amounts of
nitrogen, the simulated result there are in one replication (output). If
we going to do variance analysis and comparison between treatments based
on traditional statistical methods, it is impossible (no replications).
So, is there statistical method, which can be used for evaluating
differences among treatments based on simulated data?
  Best Regards
  Bahram Andarzian


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