Earth & Environmental Sciences
ammonium
11%
archaeological site
100%
belowground biomass
36%
climate
7%
climate change
8%
climate variation
16%
effect
3%
footprint
95%
geochemistry
11%
human activity
75%
monitoring
7%
natural area
32%
natural environment
12%
nitrate
10%
phosphorus
10%
regional climate
13%
remote sensing
8%
sampling
7%
satellite imagery
13%
soil
41%
soil-vegetation interaction
25%
vegetation
58%
vegetation type
13%
vehicle
10%
vulnerability
11%
water
4%
Chemical Compounds
Ammonium
38%
Environment
27%
Geochemistry
67%
Nitrate
36%
Phosphorus(.)
40%
Soil
82%
Time
34%
Engineering & Materials Science
Biomass
22%
Climate change
13%
Deposits
23%
Geochemistry
20%
Monitoring
6%
Nitrates
15%
Phosphorus
14%
Remote sensing
12%
Sampling
8%
Satellite imagery
17%
Satellites
9%
Soils
76%
Unmanned aerial vehicles (UAV)
11%
Water
6%