Based on the quite positive response of the two Reviewers and the fruitful reorganization of the manuscript made according to the comments of both of them, in my opinion the manuscript can be published. Before this may happen, however, a minor revision is required, consisting in the following few amendments:

- the authors should clearly state what are the substantial differences and the advancement of science between this work and the two ones recently published by Nussbaum et alii in the same journal.

- just because the two papers have been published (one in 2017, the other in 2018), they should be not referred to as SOIL Discuss., but more appropriately in both final list and throughout the text.

- somewhere in the text there is the reference Greiner et al., 2018. A paper in preparation can not be taken for granted that it will be published in the current year, at all. Please use the form “unpublished data”.

Dear Authors,

I would like to thank you for your continued support of SOIL. I also appreciate how you distinguished this manuscript from the papers published by Nussbaum et al.
Hence, I can accept this paper for publication in SOIL.

best,
Jo