Boundary distance building plot / forest

Are there also distances to the building plot in the case of a forest? I do not understand the paragraph Distances for Forest (§ 40 NachbG NRW).

If you want to build and it concerns your building plot, the state building code applies to the plot

Regards

We have also purchased a forest with our property in S-H and must maintain a protective distance of 30m from our building structure. Whether this is the case for you as well will certainly be known by the responsible forestry authority.

I do not understand Paragraph 40 NachbG NRW in this context. Does any of you understand it?

I do not understand Paragraph 40 NachbG NRW in this context. Does any of you understand it?

Again: in which context?

Regards

Distance areas. Apparently, there is a difference whether it is trees or a forest.