Earth and Planetary Sciences
Emissions
100%
Nitrous Oxide
52%
Atmospherics
50%
Methane
49%
China
40%
United States of America
40%
Nitrification
35%
Nitrous Oxide
30%
Nitric Oxide
29%
Nitrogen Dioxide
24%
Denitrification
22%
Isotopic Fractionation
20%
Temporal Variation
19%
Agricultural Soil
18%
Boiling
18%
Headwater
18%
Atmospheric Deposition
16%
Planetary Atmosphere
15%
Stable Isotope
15%
Water Body
14%
Soil Nitrogen
14%
Isotopic Analysis
13%
Water Storage
13%
United States
12%
Isotopic Ratio
12%
Isotopic Composition
11%
Global Warming
10%
Field Scale
10%
Greenhouse Gas
10%
Dry Deposition
10%
Stable Isotope
10%
Dissolved Inorganic Nitrogen
10%
Organic Carbon
10%
Coastal Environment
10%
Fluvial Deposit
10%
Carbon Dioxide
9%
Runoff
9%
Peatland
9%
Flux Chamber
9%
NOx Emission
9%
Timescale
9%
Polycyclic Aromatic Hydrocarbons
9%
Coastal Wetland
9%
River Ecosystem
9%
Heavy Metal
9%
Potable Water
9%
Transport Process
9%
Vapor Phase
9%
Water Resource
9%
Organic Matter
9%
Keyphrases
Nitrate
43%
U.S. Corn Belt
35%
Nitric Oxide
29%
Urban River
28%
N2O Emission
27%
Water Quality
27%
Nitrous Oxide Emission
27%
CH4 Flux
23%
Growing Season
23%
Atmospheric Deposition
21%
Spatiotemporal Variation
21%
Tall Tower
21%
NH3 Emission
20%
Nitrification
19%
Ammonium Ion
19%
Ammonia
19%
Impact Evaluation
18%
Cemetery
18%
Built Infrastructure
18%
Headwater Streams
18%
Carbon Sequestration
18%
Agricultural Soil
18%
US Midwest
18%
Ebullition
18%
Source Identification
18%
CH4 Emission
17%
Peat
16%
Denitrification
15%
United States
15%
Environmental Conditions
13%
N Input
13%
Shanghai River Network
13%
Soil Carbon Pool
13%
N2O Flux
13%
Yangtze Estuary
12%
Sedimentary Organic Carbon
12%
Global Warming
12%
Dynamic Flux Chamber
12%
Shanghai City
12%
River Network
12%
Isotopic Analysis
12%
High Nitrate
12%
Nitrate Isotopes
12%
Source Process
12%
China Coast
12%
Stable Isotopes
11%
In Situ
11%
Chongming Island
11%
Nitrogen Fertilizer
11%
Wetland Plants
11%
