1 Subjects: “...protected area management...”

2 “...Ecological protection and high-quality development in the basin of the Yellow River, known as China...”

3 Subjects: “...Climate Protection...”

4 Subjects: “...source water protection...”

5 Subjects: “...protected areas...”

6 Subjects: “...shore protection...”

7 Subjects: “...Norwegian protected buildings...”

8 Subjects: “...protected areas...”

9 Subjects: “...water protection...”

10 Subjects: “...protected areas...”

11 Subjects: “...environmental protection...”

12 Subjects: “...personal health protective behaviour...”

13 Subjects: “...scour protection damage...”

14 Subjects: “...historical buildings protection...”

15 Subjects: “...natural protected areas...”

16 Subjects: “...bud protection...”

17 Subjects: “...bud protection...”

18 Subjects: “...bud protection...”

19 “..., water quality analysis and protection measures, acquisition and measurement of data, statistical...”

20 “..., and protecting low-lying areas against flooding and erosion. While these structures were previously based...”