Agriculture & Biology
Antarctica
55%
soil
55%
Sonoran Desert
42%
deserts
37%
plant litter
33%
nitrogen
29%
ecosystems
29%
nutrients
27%
degradation
26%
valleys
23%
stoichiometry
22%
chemistry
21%
microbial biomass
21%
biogeochemistry
20%
deterioration
15%
snowmelt
14%
urbanization
14%
mosses and liverworts
13%
mineralization
12%
geochemistry
12%
carbon
12%
desert soils
11%
global change
11%
additive effect
11%
soil fauna
11%
vegetation
11%
plant communities
11%
food webs
10%
soil respiration
10%
microbial communities
10%
ripping
9%
soil arthropods
9%
mineral soils
9%
habitats
9%
soil properties
9%
nutrient availability
8%
Platanus wrightii
8%
soil heterogeneity
8%
soil structure
8%
trajectories
8%
nitrogen cycle
8%
soil nematodes
8%
systems analysis
8%
organisms
8%
trophic relationships
7%
penguins
7%
phosphorus
7%
trophic levels
7%
photolysis
7%
detritus
7%
Earth & Environmental Sciences
litter
60%
desert
49%
soil
49%
Antarctica
31%
nitrogen
25%
decomposition
25%
nutrient
21%
valley
20%
soil biology
17%
loss
17%
meltwater
16%
stoichiometry
16%
ecosystem
15%
nutrient dynamics
13%
desert soil
12%
habitat
11%
polar ecosystem
11%
effect
10%
community response
9%
carbon
9%
mineralization
9%
cactus
9%
leaf litter
9%
arthropod
9%
moisture flux
8%
biogeochemistry
8%
nutrient availability
8%
biomass
8%
ecosystem process
8%
soil fauna
8%
climate change
8%
soil process
8%
food web
8%
nematode
8%
plant community
8%
moss
8%
trophic interaction
7%
phosphorus
7%
life history trait
7%
climate
7%
photodegradation
7%
biotic factor
7%
temperature
7%
ecology
7%
desiccation
7%
soil structure
6%
chemical
6%
environmental change
6%
systems analysis
6%
species diversity
6%
Medicine & Life Sciences
Soil
100%
Antarctic Regions
50%
Ecosystem
39%
Nitrogen
31%
Biota
24%
Biomass
24%
Nutrients
23%
Biodiversity
18%
Urbanization
16%
Fertilization
15%
Rhododendron
15%
Food Chain
15%
Respiration
14%
Bryophyta
11%
Liriodendron
11%
Minerals
11%
Spheniscidae
11%
Acer
10%
Herbivory
10%
Life History Traits
10%
Climate Change
8%
Temperature
7%
Islands
6%
Tsuga
6%
Carbon
6%
Microbiology
6%
Hemlock
6%
Microbiota
6%
Invertebrates
5%
Tulipa
5%
Quercus
5%
Rodentia
5%