Earth & Environmental Sciences
Holocene
100%
lake
80%
basin
65%
mountain
58%
sediment
55%
climate
54%
vegetation
52%
amino acid
51%
racemization
51%
pollen
50%
plateau
49%
canyon
47%
volcanic eruption
43%
Pleistocene
43%
zircon
42%
tectonics
39%
North America
39%
history
38%
glacier
37%
magma
37%
geochronology
37%
fungus
34%
restoration
32%
soil
31%
ecosystem
31%
valley
31%
desert
31%
lacustrine deposit
30%
climate change
30%
habitat
30%
volcano
29%
shell
29%
dating
29%
pine
28%
temperature
27%
river
27%
stratigraphy
27%
national park
27%
Miocene
26%
rock
26%
terrane
26%
ignimbrite
26%
faulting
26%
tephra
25%
Pliocene
25%
uplift
24%
carbon
24%
caldera
23%
fossil
23%
isotope
23%
environmental change
23%
warming
23%
provenance
23%
biosphere
22%
carbonate
22%
tuff
22%
drought
22%
charcoal
21%
Younger Dryas
21%
sandstone
21%
effect
21%
cordillera
21%
trend
21%
paleoclimate
21%
volcanism
20%
land
20%
productivity
20%
sedimentation
20%
coniferous tree
20%
exhumation
19%
basalt
19%
sediment core
19%
Cretaceous
19%
young
19%
oxygen isotope
19%
gulf
19%
summer
19%
melt
18%
grassland
18%
analysis
18%
fire history
18%
bear
18%
mantle
18%
comparison
18%
chronology
17%
transition
17%
moraine
17%
cooling
17%
rate
17%
creek
16%
Eocene
16%
distribution
16%
rhyolite
16%
modeling
16%
crater
16%
lithosphere
16%
Postglacial
16%
magmatism
15%
midden
15%
Laurentia
15%
Agriculture & Biology
lakes
48%
climate
45%
vegetation
44%
ecosystems
40%
mycorrhizal fungi
40%
Pinus ponderosa
38%
sediments
38%
climate change
29%
soil
28%
pollen
27%
glaciers
26%
habitats
26%
ice
26%
mountains
24%
mycorrhizae
23%
canyons
22%
coniferous forests
21%
carbon
20%
fire history
18%
drought
17%
Arctic region
17%
Mojave Desert
17%
grasslands
17%
vesicular arbuscular mycorrhizae
16%
charcoal
16%
Sierra Nevada (California)
15%
Southwestern United States
15%
fossils
15%
ecological restoration
14%
fungal communities
14%
grazing
14%
national parks
14%
net ecosystem exchange
13%
Gopherus agassizii
13%
edge effects
13%
forest restoration
13%
gross primary productivity
13%
temperature
12%
glaciation
12%
biological soil crusts
12%
basins
12%
wildfires
12%
wetlands
12%
uncertainty
12%
summer
12%
fire regime
11%
grasses
11%
species diversity
11%
symbiosis
11%
springs (water)
11%
prescribed burning
11%
managers
11%
plant communities
11%
eddy covariance
10%
planning
10%
biosphere
10%
history
10%
soil biota
10%
oceans
10%
Puma concolor
10%
bogs
10%
Sonoran Desert
10%
birds
10%
rivers
9%
plateaus
9%
biodiversity
9%
land management
9%
woodlands
9%
roads
9%
landscape management
9%
thinning (plants)
9%
deserts
9%
Iberian Peninsula
9%
conifers
8%
synthesis
8%
Western United States
8%
soil fertility
8%
fire frequency
8%
Picea
8%
case studies
8%
Ursidae
8%
carbon cycle
8%
tortoises
8%
Mexico
8%
oxygen isotopes
8%
meadows
8%
water
8%
Pinus
8%
spores
8%
arid lands
8%
carbon radioisotopes
8%
vegetation types
7%
nitrogen
7%
net ecosystem production
7%
environmental factors
7%
species richness
7%
growth rings
7%
isotopes
7%
net primary productivity
7%
valleys
7%