1 Subjects: “...traditional ecological knowledge...”

2 Subjects: “...ecology...”

3 Subjects: “...socio-ecological systems...”

4 Subjects: “...urban ecology...”

5 Subjects: “...ecological property rights...”

6 Subjects: “...ecological transition...”

7 Subjects: “...traditional ecological knowledge...”

8 Subjects: “...agro-ecological service crops...”

9 Subjects: “...ecological fitness...”

10 Subjects: “...ecological ditch...”

11 Subjects: “...political ecology...”

12 Subjects: “...socio-ecological systems...”

13 Subjects: “...ecology...”

14 Subjects: “...aquatic ecology...”

15 “...-hydrology, landscape ecology, regional-circular-ecological sphere etc., which presents a perfect combination...”

16 “... and environmental and ecological issues will steer the trajectory of soilless culture systems and the choice...”

17 “... quality in the final products. To prevent this, focus is on designing economic and ecological technologies...”

18 “... variety of applications (e.g., ecology, carbon cycle, agriculture, forestry and food security)....”