Earth & Environmental Sciences
maize
100%
drought
72%
crop
66%
irrigation
64%
lake
58%
evapotranspiration
55%
groundwater
48%
soil
48%
plain
44%
climate
41%
diatom
40%
soybean
37%
water
37%
nitrogen
31%
aquifer
28%
Holocene
27%
ecosystem
27%
index
27%
manure
26%
vegetation
25%
energy balance
24%
rate
24%
effect
23%
watershed
23%
eddy covariance
23%
remote sensing
22%
climate change
22%
growing season
21%
productivity
21%
nitrate
20%
monitoring
20%
steroid
20%
sensor
19%
vegetation index
19%
agriculture
19%
soil water
19%
canopy
19%
soil moisture
19%
runoff
19%
sediment
19%
cover crop
19%
evaluation
19%
modeling
18%
crop yield
18%
fertilizer
18%
antibiotics
18%
MODIS
18%
soil property
18%
lake level
17%
method
17%
temperature
16%
analysis
16%
river
16%
drug
16%
surface water
15%
antibiotic resistance
15%
sand
15%
land surface
15%
calibration
15%
grassland
15%
cost
15%
summer
15%
machine learning
15%
Landsat
15%
water use
15%
policy
14%
water stress
14%
biomass
14%
weather
14%
trend
14%
NDVI
14%
indicator
14%
gene
14%
nutrient
14%
beef cattle
13%
land
13%
water management
13%
comparison
13%
recharge
13%
detection
13%
crop production
13%
prediction
13%
economics
13%
prairie
12%
phosphorus
12%
pollutant
12%
energy
12%
farm
12%
moisture
12%
water quality
12%
water resource
12%
removal
12%
wetland
11%
distribution
11%
atrazine
11%
water budget
11%
wastewater
11%
contamination
11%
reflectance
11%
hormone
11%
Agriculture & Biology
corn
97%
evapotranspiration
56%
lakes
51%
crops
49%
soil
44%
nitrogen
43%
soybeans
39%
Bacillariophyceae
37%
water
36%
remote sensing
36%
irrigation
34%
drought
32%
climate
32%
soil water
27%
ecosystems
27%
cover crops
25%
methodology
25%
canopy
25%
eddy covariance
24%
Corn Belt region
24%
nitrogen fertilizers
23%
growing season
22%
sensors (equipment)
21%
rice
21%
turf grasses
21%
vegetation index
20%
irrigation management
20%
Landsat
20%
aquifers
20%
monitoring
20%
vegetation
19%
grain yield
19%
weather
19%
groundwater
19%
sediments
18%
wheat
18%
calibration
18%
uncertainty
18%
prediction
18%
Bouteloua dactyloides
18%
energy balance
18%
water stress
17%
climate change
17%
phenotype
17%
image analysis
17%
temperature
16%
soil properties
16%
reflectance
16%
farmers
16%
crop yield
16%
case studies
16%
artificial intelligence
16%
nitrates
15%
biomass
15%
tillage
15%
planting
14%
irrigation water
14%
nozzles
14%
meteorological data
13%
Lake Titicaca
13%
unmanned aerial vehicles
13%
farms
13%
animal manures
13%
runoff
13%
no-tillage
13%
herbicides
12%
economics
12%
agriculture
12%
grasslands
12%
crop production
12%
heat
12%
irrigation rates
12%
water management
12%
irrigation scheduling
12%
crop models
11%
summer
11%
gross primary productivity
11%
testing
11%
Zea mays
11%
water quality
11%
ecological resilience
11%
phosphorus
11%
moderate resolution imaging spectroradiometer
11%
carbon
11%
surface water
11%
rivers
11%
water budget
11%
time series analysis
11%
nutrients
10%
simulation models
10%
sand
10%
sampling
10%
dry beans
10%
cropland
9%
fertilizer rates
9%
crop coefficient
9%
golf courses
9%
water table
9%
cropping systems
9%
soil quality
9%
Engineering & Materials Science
Crops
78%
Irrigation
60%
Soils
60%
Water
56%
Drought
45%
Evapotranspiration
35%
Groundwater
35%
Antibiotics
31%
Runoff
26%
Nitrogen
24%
Manures
24%
Beef
22%
Sensors
22%
Unmanned aerial vehicles (UAV)
21%
Herbicides
21%
Pesticides
21%
Nitrates
20%
Biomass
18%
Watersheds
18%
Impurities
18%
Rivers
18%
Nutrients
17%
Wastewater
16%
Sediments
16%
Remote sensing
16%
Agriculture
16%
Aquifers
16%
Surface waters
15%
Monitoring
15%
Soil moisture
14%
Ecosystems
13%
Steroid hormones
13%
Life cycle
12%
Water management
11%
Farms
11%
Antennas
11%
Genes
11%
Sensor networks
11%
Veterinary Drugs
11%
Nozzles
10%
Contamination
10%
Drug products
10%
Costs
10%
Rain
10%
Fertilizers
10%
Economics
9%
Lakes
9%
Temperature
9%
Experiments
9%
Air
9%
Sustainable development
9%
Phase transitions
9%
Water resources
9%
Leaching
9%
Robotics
9%
Productivity
9%
Phosphorus
8%
Energy balance
8%
Effluents
8%
Infrared radiation
8%
Wastewater treatment
8%
Sampling
8%
Wetlands
8%
Water quality
8%
Seed
7%
Birefringence
7%
Ethanol
7%
Sand
7%
Environmental impact
7%
Climate change
7%
Satellites
7%
Aircraft
7%
Biofuels
7%
Machine learning
7%
Decision making
7%
Greenhouse gases
7%
Potable water
7%
Fluxes
6%
Subirrigation
6%
Throughput
6%
Enzymatic hydrolysis
6%
Health
6%
Infiltration
6%
Bacteria
6%
Land use
6%
Calibration
6%
Uranium
6%
Nitrogen fertilizers
6%
Pollution
6%
Erosion
6%
Activated carbon
5%
Industry
5%
Hot Temperature
5%
Uncertainty
5%
Controllers
5%
Arsenic
5%
Students
5%
Scheduling
5%
Greenhouses
5%
Gas emissions
5%