Agriculture & Biology
agricultural land
23%
agroforestry
92%
alley cropping
100%
Alnus
20%
aquaponics
26%
Bangladesh
19%
bioenergy
38%
biomass
68%
biosphere
41%
carbon sinks
20%
Central America
18%
cropping systems
49%
crops
36%
drainage water
27%
edge effects
46%
energy crops
41%
farm forestry
27%
farmers
17%
fish
18%
forest industries
23%
fuels (fire ecology)
41%
germplasm conservation
18%
governance
22%
income
19%
land use
30%
land use planning
51%
landowners
20%
logging
46%
nontimber forest products
34%
nutrient uptake
16%
nutrients
19%
Panicum virgatum
18%
pollution load
22%
polyculture (aquaculture)
22%
Populus
26%
profitability
16%
Salix
27%
Salix purpurea
18%
silvopastoral systems
23%
snow
19%
Spartina pectinata
58%
subsurface drainage
32%
Superior National Forest
68%
tile drainage
38%
wetlands
33%
willows
43%
woodlands
17%
Ziziphus
22%
Earth & Environmental Sciences
agroforestry
93%
alley cropping
60%
alternative energy
15%
biomass
55%
biosphere reserve
69%
Central America
39%
community forestry
64%
conservation genetics
26%
cost
36%
cost-benefit
19%
creek
16%
crop
44%
deforestation
16%
domestication
14%
drainage
17%
drainage water
23%
farm
30%
forage
18%
forest management
29%
forestry
21%
grazing
15%
harvest
32%
income
22%
innovation
14%
landowner
33%
livestock
20%
market
25%
natural resource
19%
nitrate
15%
nontimber forest product
35%
norm
16%
nutrient
17%
phosphorus
20%
photosynthetically active radiation
16%
policy
19%
prairie
15%
productivity
19%
profitability
33%
project
24%
removal
15%
rights
18%
seed
14%
timber
20%
timber forest
25%
tree planting
15%
vegetable
21%
wetland
26%
woodland
16%
Social Sciences
activation
11%
biosphere reserve
58%
campaign
6%
Central America
20%
conservation
34%
costs
21%
developing country
6%
diversification
8%
economy
5%
energy
11%
energy production
11%
energy source
10%
environmental damage
9%
experience
8%
farm
6%
farmer
30%
forestry
46%
Geographical Information System
9%
governance
11%
Government regulation
10%
Guatemala
26%
incentive
6%
income
7%
India
12%
industry
10%
interconnection
5%
land use
8%
livelihood
11%
management
12%
manager
6%
market
20%
moral obligation
22%
natural resources
17%
performance
7%
profitability
18%
renewable energy
18%
research facility
9%
resources
13%
responsibility
6%
River watershed
9%
technology transfer
9%
threat
5%
Tourism
7%
value chain
20%
Water conservation
8%
Water drainage
6%
water pollution
7%
Water resources
20%
wetland
22%