Earth and Planetary Sciences
Emissions
100%
Nitrous Oxide
56%
Atmospherics
45%
Methane
45%
United States of America
38%
China
37%
Nitrous Oxide
36%
Nitrification
32%
Nitric Oxide
26%
Nitrogen Dioxide
22%
Isotopic Fractionation
21%
Denitrification
20%
Temporal Variation
17%
Agricultural Soil
16%
Boiling
16%
Headwater
16%
Atmospheric Deposition
15%
Planetary Atmosphere
13%
Stable Isotope
13%
Water Body
13%
Soil Nitrogen
13%
Isotopic Analysis
12%
Water Storage
12%
Greenhouse Gas
11%
United States
11%
Isotopic Ratio
11%
Denitrification
10%
Isotopic Composition
10%
Transport Process
10%
Global Warming
9%
Field Scale
9%
Dry Deposition
9%
Stable Isotope
9%
Dissolved Inorganic Nitrogen
9%
Organic Carbon
9%
Coastal Environment
9%
Fluvial Deposit
9%
Carbon Dioxide
9%
Runoff
8%
Peatland
8%
Flux Chamber
8%
NOx Emission
8%
Timescale
8%
Polycyclic Aromatic Hydrocarbons
8%
Coastal Wetland
8%
River Ecosystem
8%
Heavy Metal
8%
Potable Water
8%
Vapor Phase
8%
Water Resource
8%
Keyphrases
Nitrate
39%
U.S. Corn Belt
35%
Nitric Oxide
26%
Urban River
26%
N2O Emission
25%
Water Quality
24%
Nitrous Oxide Emission
24%
Denitrification
22%
CH4 Flux
21%
Growing Season
21%
Nitrification
21%
Atmospheric Deposition
19%
Spatiotemporal Variation
19%
Tall Tower
19%
Stable Isotopes
18%
NH3 Emission
18%
Ammonium Ion
18%
Ammonia
17%
Impact Evaluation
16%
Cemetery
16%
Built Infrastructure
16%
Headwater Streams
16%
Carbon Sequestration
16%
Agricultural Soil
16%
US Midwest
16%
Ebullition
16%
Source Identification
16%
CH4 Emission
16%
Peat
15%
United States
14%
River Network
13%
Nitrate Isotopes
13%
Nitrogen Fertilizer
13%
Environmental Conditions
12%
Nitrogen N
12%
N Input
12%
Shanghai River Network
12%
Soil Carbon Pool
12%
N2O Flux
12%
Yangtze Estuary
11%
Sedimentary Organic Carbon
11%
Global Warming
11%
Dynamic Flux Chamber
11%
Shanghai City
11%
Isotopic Analysis
11%
High Nitrate
11%
Source Process
11%
China Coast
11%
Transport Processes
11%
Fertilizer
10%
