1 Subjects: “...Interfacial transition zone...”

2 Subjects: “...transition zone...”

3 Subjects: “...aerobic–anaerobic transition zone...”

4 Subjects: “...interfacial transition zone...”

5 Subjects: “...transition zone...”

6 Subjects: “...transition zone...”

7 Subjects: “...interfacial transition zone...”

8 Subjects: “...north–south transitional zone...”

9 Subjects: “...agro-pastoral transitional zone...”

10 Subjects: “...interfacial transition zone...”

11 Subjects: “...interfacial transition zone...”

12 Subjects: “...interfacial transition zone...”