Earth & Environmental Sciences
Africa
12%
Antarctica
14%
arid region
16%
biodiversity
11%
carbon fixation
20%
climate change
9%
cold region
19%
cryptogam
25%
disturbance
22%
ecosystem
38%
global change
32%
ground cover
20%
habitat
10%
hydrology
13%
land degradation
36%
land use
10%
limiting factor
33%
mineral
9%
rehabilitation
15%
respiration
14%
soil
27%
soil carbon
16%
soil degradation
19%
soil erosion
15%
soil property
57%
soil surface
28%
tolerance
14%
trampling
21%
vegetation
9%
water
4%
Agriculture & Biology
Antarctica
7%
Argentina
5%
arid lands
70%
biocenosis
9%
biodiversity
5%
biological soil crusts
100%
Brazil
4%
carbon dioxide fixation
7%
China
4%
climate change
5%
cold zones
8%
cryptogams
10%
ecosystems
49%
engineers
69%
global change
15%
habitats
3%
hydrology
8%
Iceland
8%
Iran
5%
land degradation
18%
land use
6%
Mexico
5%
microorganisms
4%
minerals
4%
Norway
6%
rehabilitation (people)
8%
soil
19%
soil carbon
7%
soil degradation
8%
soil erosion
7%
soil properties
65%
South Africa
5%
Spain
5%
Sweden
6%
vegetation
4%
water
2%