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| 1 | Increased expression of extracellular signal-regulated kinase and angiotensin-converting enzyme in human atria during atrial fibrillation显示文摘 | Andreas Goette Thorsten Staack Christoph R?cken Marco Arndt J.Christoph Geller Christof Huth Siegfried Ansorge Helmut U Klein Uwe Lendeckel | 2000 | Journal of the American College of Cardiology2000，，6： | 1 |
| 2 | Fatigue growth of a surface crack in a welded T-joint 显示文摘 | Andrea Carpinteri Roberto Brighenti Hans-Jorg Huth Sabrina Vantadori | 2005 | International Journal of Fatigue2005，27，： | 1 |
| 3 | The carbon fluxes in different successional stages:modelling the dynamics of tropical montane forests in South Ecuador显示文摘Background: Tropical forests play an important role in the global carbon(C) cycle.However, tropical montane forests have been studied less than tropical lowland forests, and their role in carbon storage is not well understood.Montane forests are highly endangered due to logging, land-use and climate change.Our objective was to analyse how the carbon balance changes during forest succession.Methods: In this study, we used a method to estimate local carbon balances that combined forest inventory data with process-based forest models.We utilised such a forest model to study the carbon balance of a tropical montane forest in South Ecuador, comparing two topographical slope positions(ravines and lower slopes vs upper slopes and ridges).Results: The simulation results showed that the forest acts as a carbon sink with a maximum net ecosystem exchange(NEE) of 9.3 Mg C?(ha?yr)-1during its early successional stage(0–100 years).In the late successional stage, the simulated NEE fluctuated around zero and had a variation of 0.77 Mg C?(ha?yr)–1.The simulated variability of the NEE was within the range of the field data.We discovered several forest attributes(e.g., basal area or the relative amount of pioneer trees) that can serve as predictors for NEE for young forest stands(0–100 years) but not for those in the late successional stage(500–1,000 years).In case of young forest stands these correlations are high, especially between stand basal area and NEE.Conclusion: In this study, we used an Ecuadorian study site as an example of how to successfully link a forest model with forest inventory data, for estimating stem-diameter distributions, biomass and aboveground net primary productivity.To conclude, this study shows that process-based forest models can be used to investigate the carbon balance of tropical montane forests.With this model it is possible to find hidden relationships between forest attributes and forest carbon fluxes.These relationships promote a better understanding of the role of tropical montane forests in the context of global carbon cycle, which in future will become more relevant to a society under global change. | sebastian paulick claudia dislich jürgen homeier rico fischer andreas huth | 2017 | Forest Ecosystems2017，4，2： | 1 |
| 4 | Sulfur isotope analyses of individual aerosol particles in the urban aerosol at a central European site (Mainz, Germany) 显示文摘 | Sinha B W Hoppe P Huth J Foley S Andreae M O | 2008 | Atmos Chem Phys2008，8，23： | 1 |
| 5 | Estimating the carbon fluxes of forests with an individual-based forest model显示文摘Background: Capturing the response of forest ecosystems to inter-annual climate variability is a great challenge.In this study, we tested the capability of an individual-based forest gap model to display carbon fluxes at yearly and daily time scales.The forest model was applied to a spruce forest to simulate the gross primary production(GPP), respiration and net ecosystem exchange(NEE).We analyzed how the variability in climate affected simulated carbon fluxes at the scale of the forest model.Results: Six years were simulated at a daily time scale and compared to the observed eddy covariance(EC) data.In general, the seasonal cycle of the individual carbon fluxes was correctly described by the forest model.However, the estimated GPP differed from the observed data on the days of extreme climatic conditions.Two new parameterizations were developed: one resulting from a numerical calibration, and the other resulting from a filtering method.We suggest new parameter values and even a new function for the temperature limitation of photosynthesis.Conclusions: The forest model reproduced the observed carbon fluxes of a forest ecosystem quite wel.Of the three parameterizations, the calibrated model version performed best.However, the filtering approach showed that calibrated parameter values do not necessarily correctly display the individual functional relations.The concept of simulating forest dynamics at the individual base is a valuable tool for simulating the NEE, GPP and respiration of forest ecosystems. | Edna Rodig Andreas Huth Friedrich Bohn Corinna Rebmann Matthias Cuntz | 2017 | Forest Ecosystems2017，4，2： | 0 |
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