Keyphrases
Forest Floor
100%
Spruce Stands
100%
Red Spruce
100%
Soil Nitrogen Fractions
100%
Nitrogen Addition
100%
Ammonium Ion
75%
N Input
75%
Amino acid-N
75%
N Pool
75%
Soil N Pools
50%
N Fractions
50%
N Deposition
50%
Atmospheric Deposition
50%
N Content
50%
Organic Matter
25%
Hydrolysable
25%
R2 Value
25%
Fraction Size
25%
N Concentration
25%
Pool Size
25%
Nitrogen (N) Input
25%
Northeastern US
25%
Acid Soluble
25%
Control Plots
25%
Ammonium-N
25%
Large Soil
25%
Microbial Immobilization
25%
Boreal Forest Ecosystem
25%
N Amendment
25%
Short-term Treatment
25%
Increased Nitrogen
25%
Temperate Forest Ecosystems
25%
N-total
25%
Earth and Planetary Sciences
Forest Floor
100%
Soil Nitrogen
100%
Amino Acid
75%
Atmospherics
50%
Atmospheric Deposition
50%
United States of America
25%
Organic Matter
25%
Boreal Forest
25%
Forest Ecosystem
25%
Temperate Forest
25%
Agricultural and Biological Sciences
Floors
100%
Atmospheric Deposition
50%
Temperate Forest
25%
Boreal Forest
25%
Forest Ecosystem
25%