Earth & Environmental Sciences
drought
100%
summer
73%
transpiration
54%
vadose zone
52%
water availability
51%
water use
47%
soil water
40%
water
38%
physiological response
31%
groundwater
30%
phreatic zone
30%
cavitation
28%
genotype
27%
regional climate
24%
growing season
23%
soil surface
22%
soil moisture
20%
moisture
19%
surface water
17%
ecosystem
14%
climate change
14%
rate
8%
Agriculture & Biology
drought
99%
vadose zone
89%
summer
83%
groundwater
55%
water
52%
transpiration
46%
soil water
42%
leaf conductance
34%
dry climates
32%
plant available water
32%
physiological response
25%
Populus
25%
climate change
21%
growing season
20%
climate
20%
ecosystems
19%
genotype
15%
soil
12%