Agriculture & Biology
dissolved organic matter
100%
soil
34%
water
27%
sampling
24%
vadose zone
21%
soil solution
14%
total dissolved nitrogen
11%
fluorescence
9%
fulvic acids
8%
dissolved organic carbon
8%
fiberglass
7%
weathering
7%
samplers
7%
biogeochemical cycles
6%
sorption
6%
absorbance
5%
fractionation
5%
physicochemical properties
4%
extracts
3%
methodology
1%
Earth & Environmental Sciences
dissolved organic matter
67%
sampling
38%
soil
28%
vadose zone
12%
fluorescence
10%
total parameter
8%
fiberglass
8%
experiment
7%
fulvic acid
7%
nutrient cycling
6%
absorbance
6%
laboratory
6%
dissolved organic carbon
5%
sampler
5%
Fourier transform
5%
chemical property
5%
fractionation
5%
weathering
5%
sorption
5%
disturbance
4%
in situ
3%
nitrogen
3%
analysis
3%
material
2%
water
1%
effect
1%
method
1%