Agriculture & Biology
carbon isotopes
100%
photosynthates
76%
Pinus
72%
branchwood
66%
carbon dioxide
49%
assimilation (physiology)
39%
leaves
37%
Podocarpaceae
33%
isotope fractionation
30%
growth rings
24%
stable isotopes
22%
isotopes
21%
cell respiration
21%
rain forests
21%
humidity
18%
fractionation
17%
immatures
16%
prediction
14%
carbon
13%
air
13%
tissues
9%
sampling
7%
cells
6%
Earth & Environmental Sciences
carbon isotope
79%
pine
72%
assimilation
37%
fractionation
35%
rainforest
22%
tree ring
22%
translocation
22%
respiration
18%
stable isotope
18%
humidity
17%
isotope
15%
family
15%
tissue
15%
cell
13%
sampling
12%
carbon
12%
air
11%
prediction
10%
material
8%
rate
6%
analysis
5%
effect
4%