Keyphrases
Soil Surface
100%
Greenhouse Gas Production
100%
Cropping System
100%
Northern China
100%
Depth-dependent
100%
Gas Consumption
100%
Upland Cropping
100%
Maize
75%
N2O Consumption
75%
Surface Exchange
75%
Respiration
50%
Farmland
50%
Soil Horizons
25%
CO2 Sources
25%
Gas Exchange
25%
In Situ
25%
Soil Profile
25%
CO2 Flux
25%
CH4 Flux
25%
N2O Flux
25%
Greenhouse Gas
25%
Topsoil
25%
Greenhouse Gas Emissions
25%
CO2 Production
25%
Gradient Method
25%
Static Chamber
25%
Production versus Consumption
25%
Vertical Profile
25%
Soil Pore Space
25%
CH4 Sink
25%
Concentration Gradient
25%
Taihang Mountain Region
25%
Consumption Potential
25%
Dependent Contributions
25%
N2O Sink
25%
Earth and Planetary Sciences
Methane
100%
Nitrous Oxide
100%
Greenhouse Gas
100%
China
100%
Gas Production
100%
Soil Surface
66%
Subsoil
16%
Soil Profile
16%
Gas Exchange
16%
Soil Horizon
16%
Greenhouse Gas Emission
16%
Pore Space
16%
Vertical Profile
16%
Topsoil
16%
Agricultural and Biological Sciences
Methane
100%
Greenhouse Gas
100%
Cropping System
100%
Gas Exchange
16%
Soil Horizon
16%
Subsoil
16%
Soil Profile
16%
Topsoil
16%