Earth and Planetary Sciences
Headwater
100%
Surface Water
60%
Hyporheic Zone
53%
Organic Matter
53%
Flood Plain
52%
Stream Ecosystem
45%
Denitrification
29%
United States of America
28%
Ecosystem Function
28%
Land Use
28%
Primary Production
26%
Dissolved Organic Carbon
24%
Biofilm
23%
Water Exchange
22%
Mountain Stream
16%
Nutrient Cycling
16%
Land Cover
16%
Montana
15%
Ecosystem Structure
15%
Biomass
15%
Dissolved Oxygen
14%
Ecotone
13%
Stable Isotope
12%
Community Composition
12%
Snowmelt
12%
Biome
12%
Dissolved Organic Nitrogen
11%
Carbon Dioxide
11%
Vegetation
10%
Alluvium
10%
Petrography
9%
Ammonia
9%
Biogeochemistry
9%
Ecosystem Response
9%
Hydraulic Conductivity
9%
Runoff
9%
Nitrous Oxide
9%
Water Interaction
8%
Energy Flow
8%
Annual Variation
8%
Groundwater
8%
Aquatic Environment
8%
Stream Channel
8%
Base Flow
8%
Stoichiometry
8%
Groundwater-Surface Water Interaction
7%
Atmospherics
7%
Lotic Ecosystem
7%
Nitrous Oxide
7%
Microbial Community
7%
Agricultural and Biological Sciences
Nutrient Uptake
42%
Biofilm
32%
Macroinvertebrate
27%
Primary Production
22%
Denitrification
20%
Floodplains
14%
Watersheds
13%
Spring
13%
Diatom
12%
Land Use
11%
Branches
10%
Biomass
9%
Trichoptera
9%
Snowmelt
8%
Red Tide
8%
Ephemeroptera
7%
Energy Flow
7%
Microbial Biomass
7%
National Parks
6%
Americans
6%
Microalga
6%
Base Flow
5%
Plant Litter
5%
Trout
5%
Nutrient Availability
5%
Organic Nitrogen
5%
Salmo trutta
5%
Deciduous Forest
5%
Microorganism
5%
Terrestrial Ecosystem
5%
Glaciers
5%
Forest Succession
5%
Second Growth
5%
Conservative Tracer
5%
Ecosystem
5%
Land Cover
5%
Metabolism
5%
Microbial Physiology
5%
Biogeochemistry
5%
Food Quality
5%
