搜索结果: 1-11 共查到“知识库 地球科学总论 soil carbon”相关记录11条 . 查询时间(0.093 秒)
Long residence times of rapidly decomposable soil organic matter: application of a multi-phase, multi-component, and vertically resolved model (BAMS1) to soil carbon dynamics
Long residence times rapidly decomposable soil organic matter multi-phase multi-component vertically resolved model soil carbon dynamics
2014/12/19
Accurate representation of soil organic matter (SOM) dynamics in Earth system models is critical for future climate prediction, yet large uncertainties exist regarding how, and to what extent, the sui...
Response of microbial decomposition to spin-up explains CMIP5 soil carbon range until 2100
microbial decomposition soil carbon
2014/12/19
Soil carbon storage simulated by the Coupled Model Intercomparison Project (CMIP5) models varies 6-fold for the present day. Here, we confirm earlier work showing that this range already exists at the...
Sensitivity analysis and calibration of a soil carbon model (SoilGen2) in two contrasting loess forest soils
Sensitivity analysis calibration soil carbon model two contrasting loess forest soils
2014/12/17
To accurately estimate past terrestrial carbon pools is the key to understanding the global carbon cycle and its relationship with the climate system. SoilGen2 is a useful tool to obtain aspects of so...
A Paleoclimate Modeling Experiment to Calculate the Soil Carbon Respiration Flux for the Paleocene-Eocene Thermal Maximum
A Paleoclimate Modeling Experiment Calculate the Soil Carbon Respiration Flux the Paleocene-Eocene Thermal Maximum
2014/10/21
The Paleocene-Eocene Thermal Maximum (PETM) (55 million years ago) stands as the largest in a series of extreme warming (hyperthermal) climatic events, which are analogous to the modern day increase i...
Chronic nitrogen addition causes a reduction in soil carbon dioxide efflux during the high stem-growth period in a tropical montane forest but no response from a tropical lowland forest on a decadal time scale
Chronic nitrogen addition soil carbon dioxide efflux the high stem-growth period a tropical montane forest a tropical lowland forest
2010/1/21
Atmospheric nitrogen (N) deposition is rapidly increasing in tropical regions. We studied the response of soil carbon dioxide (CO2) efflux to long-term experimental N addition (125 kg N ha−1 yr&...
A method to detect soil carbon degradation during soil erosion
soil carbon degradation soil erosion
2010/1/21
Soil erosion has been discussed intensively but controversial both as a significant source or a significant sink of atmospheric carbon possibly explaining the gap in the global carbon budget. One of t...
Relative stability of soil carbon revealed by shifts in δ15N and C:N ratio
Relative stability soil carbon shifts δ15N C:N ratio
2010/1/15
Life on earth drives a continuous exchange of carbon between soils and the atmosphere. Some forms of soil carbon, or organic matter, are more stable and have a longer residence time in soil than other...
Long-term steady state 13C labelling to investigate soil carbon turnover in grasslands
Long-term steady state 13C soil carbon turnover grasslands
2010/1/14
We have set up a facility allowing steady state 13CO2 labeling of short stature vegetation (12 m2) for several years. 13C labelling is obtained by scrubbing the CO2 from outdoors air with a self-regen...
Soils apart from equilibrium – consequences for soil carbon balance modelling
Soils equilibrium consequences soil carbon balance modelling
2010/1/14
Many projections of the soil carbon sink or source are based on kinetically defined carbon pool models. Para\-meters of these models are often determined in a way that the steady state of the model ma...
Warming mineralises young and old soil carbon equally
Warming mineralises young and old soil carbon
2010/1/13
The temperature sensitivity of soil organic carbon decomposition is critical for predicting future climate change because soils store 2-3 times the amount of atmospheric carbon. Of particular controve...
Modeling impacts of management alternatives on soil carbon storage of farmland in Northwest China
Modeling impacts management alternatives soil carbon storage farmland
2010/1/13
Long-term losses of soil organic carbon (SOC) have been observed in many agriculture lands in Northwest China, one of the regions with the longest cultivation history in the world. The decline of SOC ...
