remain unaffected by this procedure. No further modifications are
needed in the LCA.
For describing the new approach we used a relatively simple crop rotation
(Fig. 3). Moreover, the approach can be easily adapted to more
complex crop rotations. Necessary for this is a mathematical description
of the crop rotation in a stochastic matrix (Table 2). Using these
methods, every conceivable crop rotation can be mathematically described
and probabilities for each crop within the crop rotation obtained.
These probabilities are crop-specific and should be applied when
quantifying all inputs and outputs of the crop rotation. Thus, the amount
of a crop-specific input and the related amount of outputs are equally
deduced from the probability that the crop occurs in the crop rotation.