Earth and Planetary Sciences
Eocene
100%
Alkane
81%
Carbon 14
75%
Paleocene
71%
Australia
70%
Vegetation
60%
Isotope Ratios
40%
Miocene
40%
Climate Change
36%
Stable Isotope
35%
Phytolith
34%
Grassland
33%
North America
27%
Pliocene
25%
Carbon Isotope Ratio
25%
Carbon Dioxide
24%
Soil Carbon
20%
Forest Canopy
19%
Isotopic Composition
19%
Global Warming
18%
Ethiopia
18%
Carbon Cycle
17%
Continent
17%
Wyoming
16%
Hydrogen Isotope
16%
Organic Carbon
15%
Plant Community
15%
Plant Specie
14%
Atmospherics
13%
Depositional Environment
12%
Polycyclic Aromatic Hydrocarbon
11%
United States of America
11%
Paleosol
11%
Observatory
11%
Organic Matter
10%
Soil Organic Matter
10%
Paleogene
10%
Isotopic Ratio
10%
Paleocene-Eocene Boundary
9%
Relative Humidity
9%
Monitoring Network
9%
Morphology
9%
Remote Sensing
9%
Introduced Species
9%
Field Survey
9%
Arid Zones
9%
Leaf Area
9%
Ecotone
9%
Late Pleistocene
9%
Southeast Asia
9%
Agricultural and Biological Sciences
Climate Change
25%
Melaleuca quinquenervia
18%
Forest Canopy
15%
Growing Season
12%
Leaf Area
11%
Poaceae
11%
Arid Zones
10%
Leaf Area Index
9%
Forestry
9%
Amaranthaceae
9%
Plant Community
9%
Environmental Factor
9%
Ecotone
9%
Terrestrial Ecosystem
9%
Sandalwood
9%
Santalum
9%
Dodonaea viscosa
9%
C4 Plant
9%
Chemotaxonomy
9%
Phytolith
9%
Grassland
9%
Australians
9%
Relative Humidity
9%
Morphospecies
9%
Global Warming
9%
Plant Wax
9%
Petiole
6%
Graminoid
6%
Sphagnum
6%
Acclimation
6%
