I think we need to be more clear on the intent of the sentence. Do you mean that this is a study of nematodes that depend on the degree of soil wetting or do you mean that this is a study of nematodes based on their individual requirements for wet soil?in dependence on/depending on
Please tell me, what should I use in this phrase? Are they both correct? Thank you!
Study on the fauna of nematodes in dependence on degree of soil wetting
That would probably work, Sergtab, although if there's more than one type of fauna, it would be "...and their relation with..."please tell me, is it correct to say this way?
Study of the fauna of nematodes in the... national park and its relation with the amount of soil moisture