Subject
Geography
6
Physical geography
4
Climatic changes
3
climatology
3
Aquatic biology
2
Geology
2
Hydraulic engineering
2
Life sciences
2
Meteorology
2
Oceanography
2
Ecology
1
Environmental management
1
Environmental sciences
1
Forests and forestry
1
Geochemistry
1
Mathematical geography
1
Microbiology
1
Paleontology
1
Remote sensing
1
Soil conservation
1
agriculture
1
aquatic ecosystem
1
aquatic microbiology
1
aquatic microorganism
1
biogeochemical cycle
1
biogeochemistry
1
biogeography
1
biological oceanography
1
cryosphere
1
erosion
1
geochemistry
1
geophysics
1
glacier
1
irrigation
1
marine biology
1
paleoclimatology
1
plate tectonics
1
snow
1
soil physics
1
soil water
1