Mathematics
Ammonia
100%
Ecosystem
76%
Bacteria
74%
Soil
54%
Perturbation
41%
Land Use
30%
Fertilization
10%
Nitrogen
10%
Nitrous Oxide
6%
Evidence
5%
Climate Change
5%
Gradient
5%
Niche
5%
Vulnerability
4%
Maintenance
4%
Specialization
3%
Manipulation
3%
Community
3%
Trends
3%
Likely
3%
Disturbance
3%
Predict
3%
Knowledge
2%
Cycle
2%
Dependent
2%
Demonstrate
2%
Medicine & Life Sciences
Archaea
73%
Ammonia
68%
Ecosystem
66%
Soil
49%
Nitrification
45%
Bacteria
40%
Forests
21%
Oils
17%
Fertilization
7%
Nitrogen Cycle
6%
Environmental Biomarkers
5%
Climate Change
4%
Southeastern Asia
4%
Nitrous Oxide
4%
Nitrogen
3%
Maintenance
2%
Agriculture & Biology
ecological function
69%
Archaea
62%
ammonia
50%
bacteria
33%
nitrification
29%
oxidants
24%
Elaeis guineensis
19%
land use
17%
soil
10%
soil pH
10%
forest soils
8%
anthropogenic activities
7%
tropical forests
7%
plantations
5%
soil acidification
4%
nitrous oxide production
4%
tropical soils
4%
nitrogen cycle
4%
riparian forests
4%
terrestrial ecosystems
4%
liming
4%
acid soils
3%
South East Asia
3%
acidification
3%
niches
3%
climate change
2%
ecosystems
2%
nitrogen
2%
Earth & Environmental Sciences
ecosystem function
62%
ammonia
47%
perturbation
47%
bacterium
38%
nitrification
22%
soil
13%
land use
11%
oil
10%
forest soil
7%
tropical forest
7%
plantation
6%
human activity
5%
environmental disturbance
4%
soil acidification
4%
riparian forest
4%
tropical soil
4%
liming
4%
nitrogen cycle
4%
ecosystem process
3%
agricultural practice
3%
Southeast Asia
3%
bioindicator
3%
microcosm
3%
nitrous oxide
3%
terrestrial ecosystem
3%
acidification
3%
niche
3%
vulnerability
2%
rate
2%
nitrogen
2%
climate change
2%
trend
1%
effect
0%
Engineering & Materials Science
Bacteria
67%
Ecosystems
64%
Ammonia
63%
Nitrification
40%
Soils
36%
Palm oil
21%
Land use
21%
Acidification
10%
Nitrogen
6%
Biomarkers
4%
Climate change
3%
Oxides
3%
Chemical Compounds
Ecosystem
71%
Nitrification
53%
Soil
50%
Palm Oil
30%
Ammonia
26%
pH Value
23%
Soil Acidification
10%
Nitrogen Cycle
8%
Modification
5%
Acidic Condition
4%
Biological Marker
4%
Nitrogen
3%