Earth and Planetary Sciences
Acid Deposition
34%
Acid Rain
14%
Aquatic Ecosystem
34%
Atmospheric Deposition
69%
Atmospherics
84%
Biogeochemistry
29%
Calcium Carbonate
17%
Climate Change
24%
Critical Load
20%
Dissolved Organic Carbon
51%
Drainage Water
19%
Dry Deposition
11%
Ecological Effect
10%
Ecosystem Response
9%
Emissions
42%
England
10%
Europe
10%
Forest Ecosystem
46%
Forest Floor
20%
Forest Soil
21%
Growing Season
15%
Headwater
18%
Hypolimnion
10%
Lake Water
20%
Land Use
10%
Liming
13%
Mercury Contamination
12%
Methylmercury
30%
New Hampshire
44%
New York
98%
Nitrogen Oxide
13%
North America
30%
Organic Carbon
11%
Organic Matter
21%
Planetary Atmosphere
15%
Runoff
11%
Snowmelt
20%
Soil Organic Matter
13%
Soil Water
9%
Streamwater
24%
Surface Water
94%
Temperate Forest
13%
Terrestrial Ecosystem
11%
United States
43%
United States of America
100%
Vegetation
18%
Water Chemistry
34%
Water Column
20%
Wet Deposition
11%
Wollastonite
11%
Agricultural and Biological Sciences
Acer Saccharum
6%
Acid Deposition
15%
Air Pollution
8%
Annuals
10%
Aquatic Ecosystem
14%
Arbutus
5%
Atmospheric Deposition
24%
Base Saturation
5%
Biogeochemistry
25%
Climate Change
16%
Critical Load
12%
Denitrification
5%
Dry Deposition
6%
Fine Root
11%
Floors
14%
Forest Ecosystem
42%
Forest Health
5%
Forest Soil
26%
Forested Watersheds
15%
Fossil Fuel
5%
Growing Season
7%
Haplorthods
6%
Hardwood
6%
Hardwood Forests
46%
Hubbard Brook Experimental Forest
53%
Limes
5%
Microbial Biomass
5%
Mineral Soils
16%
National Parks
5%
Nitrification
10%
Nitrogen Cycle
5%
Organic Soil
5%
Picea Abies
6%
Return Flow
13%
Salvelinus fontinalis
5%
Sediments
8%
Snowmelt
6%
Snowpack
5%
Soil Horizon
5%
Soil Organic Matter
12%
Soil Solution
33%
Soil Water
9%
Spodosol
11%
Sulfate
19%
Surface Water
15%
Temperate Forest
8%
Terrestrial Ecosystem
6%
Throughfall
6%
Watersheds
83%
Whole Tree Harvesting
7%
Keyphrases
Acid Neutralization Capacity
6%
Acid-base Chemistry
5%
Acidic Deposition
16%
Acidic Lake
5%
Acidification
8%
Adirondack Mountains
5%
Adirondacks
26%
Aluminum Speciation
5%
Atmospheric Deposition
7%
Biogeochemistry
6%
Forest Ecosystem
8%
Forested Catchment
5%
Lake Water
6%
Lake Watershed
5%
New York
15%
Nitrogen Deposition
5%
Northern Hardwood Forest
5%
SO42-
10%
Sulfur
5%
Surface Water
5%