Agriculture & Biology
ozone
100%
canopy
76%
leaves
41%
uncertainty
11%
stomatal conductance
10%
soil water
9%
prediction
7%
Northeastern United States
7%
uptake mechanisms
7%
carbon
7%
net primary productivity
7%
hardwood forests
7%
leaf morphology
6%
carbon dioxide fixation
6%
forest ecosystems
6%
fumigation
6%
water holding capacity
5%
water use efficiency
5%
weather
4%
pollution
4%
growth retardation
4%
water stress
4%
adverse effects
4%
climate
4%
vegetation
4%
nitrogen
3%
soil
2%
Earth & Environmental Sciences
canopy
77%
ozone
74%
productivity
65%
effect
22%
stomatal conductance
14%
soil water
9%
biomass allocation
7%
light attenuation
7%
drought stress
7%
fumigation
7%
net primary production
6%
water use efficiency
6%
carbon
6%
trade-off
5%
prediction
5%
annual variation
5%
forest ecosystem
5%
weather condition
5%
assimilation
4%
pollution
3%
vegetation
3%
nitrogen
3%
atmosphere
3%
product
2%
soil
2%
water
1%