Earth & Environmental Sciences
ammonium
6%
biogeochemical cycle
8%
carbon
4%
chemical property
14%
dissolved organic carbon
7%
ecosystem
4%
effect
14%
forest ecosystem
7%
functional role
10%
herb
67%
nitrate
5%
nitrogen
9%
nutrient content
9%
overstory
20%
phosphorus
11%
plant life
10%
plantation
58%
rhizosphere
65%
sampling
4%
seasonal variation
52%
shrub
58%
soil
16%
soil property
7%
understory
33%
vegetation
4%
Agriculture & Biology
ammonium nitrogen
10%
biogeochemical cycles
8%
carbon
5%
China
5%
dissolved organic carbon
10%
ecosystems
6%
forest ecosystems
9%
forest plantations
10%
herbs
57%
nitrate nitrogen
10%
nutrient content
7%
overstory
20%
physicochemical properties
6%
plant growth
5%
plantations
54%
rhizosphere
56%
sampling
2%
seasonal variation
55%
shrubs
55%
soil
12%
soil chemical properties
9%
soil pH
7%
soil properties
7%
total nitrogen
8%
total phosphorus
19%
tropical forests
8%
understory
32%
vegetation
5%
Medicine & Life Sciences
ammonium nitrate
14%
Carbon
15%
China
6%
Ecosystem
17%
Forests
28%
Growth
4%
Nitrogen
15%
Nutrients
6%
Phosphorus
16%
Rhizosphere
100%
Soil
51%