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| 1 | On the combined effect of soil fertility and topography on tree growth in subtropical forest ecosystems—a study from SE China显示文摘Aims The aim of our research was to understand small-scale effects of topography and soil fertility on tree growth in a forest biodiversity and ecosystem functioning(BEF)experiment in subtropical SE China.Methods Geomorphometric terrain analyses were carried out at a spatial resolution of 5×5 m.Soil samples of different depth increments and data on tree height were collected from a total of 566 plots(667 m2 each).The soils were analyzed for carbon(soil organic carbon[SOC]),nitrogen,acidity,cation exchange capacity(CEC),exchangeable cations and base saturation as soil fertility attributes.All plots were classified into geomorphological units.Analyses of variance and linear regressions were applied to all terrain,soil fertility and tree growth attributes.Important Findings In general,young and shallow soils and relatively small differences in stable soil properties suggest that soil erosion has truncated the soils to a large extent over the whole area of the experiment.This explains the concurrently increasing CEC and SOC stocks downslope,in hollows and in valleys.However,colluvial,carbon-rich sediments are missing widely due to the convexity of the footslopes caused by uplift and removal of eroded sediments by adjacent waterways.The results showed that soil fertility is mainly influenced by topography.Monte-Carlo flow accumulation(MCCA),curvature,slope and aspect significantly affected soil fertility.Furthermore,soil fertility was affected by the different geomorphological positions on the experimental sites with ridge and spur positions showing lower exchangeable base cation contents,especially potassium(K),due to leaching.This geomorphological effect of soil fertility is most pronounced in the topsoil and decreases when considering the subsoil down to 50 cm depth.Few soil fertility attributes affect tree height after 1-2 years of growth,among which C stocks proved to be most important while pH_(KCl)and CEC only played minor roles.Nevertheless,soil acidity and a high proportion of Al on the exchange complex affected tree height even after only 1-2 years growth.Hence,our study showed that forest nutrition is coupled to a recycling of litter nutrients,and does not only depend on subsequent supply of nutrients from the mineral soil.Besides soil fertility,topography affected tree height.We found that especially MCCA as indicator of water availability affected tree growth at small-scale,as well as aspect.Overall,our synthesis on the interrelation between fertility,topography and tree growth in a subtropical forest ecosystem in SE China showed that topographic heterogeneity lead to ecological gradients across geomorphological positions.In this respect,small-scale soil-plant interactions in a young forest can serve as a driver for the future development of vegetation and biodiversity control on soil fertility.In addition,it shows that terrain attributes should be accounted for in ecological research. | Thomas Scholten Philipp Goebes Peter Kühn Steffen Seitz Thorsten Assmann Jürgen Bauhus Helge Bruelheide Francois Buscot Alexandra Erfmeier Markus Fischer Werner Härdtle Jin-Sheng He Keping Ma Pascal A.Niklaus Michael Scherer-Lorenzen Bernhard Schmid Xuezheng Shi Zhengshan Song Goddert von Oheimb Christian Wirth Tesfaye Wubet Karsten Schmidt | 2017 | Journal of Plant Ecology2017，10，1： | 22 |
| 2 | Transforming growth factor-β1 induces intestinal myofibroblast differentiation and modulates their migration显示文摘AIM:To investigate the effects of transforming growth factorβ1(TGF-β1)on the differentiation of colonic lamina propria fibroblasts(CLPF)into myofibroblasts in vitro. METHODS:Primary CLPF cultures were incubated with TGF-β1 and analyzed for production ofα-smooth muscle actin(α-SMA),fibronectin(FN)and FN isoforms.Migration assays were performed in a modified 48-well Boyden chamber.Levels of total and phosphorylated focal adhesion kinase(FAK)in CLPF were analyzed after induction of migration.RESULTS:Incubation of CLPF with TGF-β1 for 2 d did not changeα-SMA levels,while TGF-β1 treatment for 6 d significantly increasedα-SMA production. Short term incubation(6 h)with TGF-β1 enhanced CLPF migration,while long term treatment(6 d)of CLPF with TGF-β1 reduced migration to 15%-37% compared to untreated cells.FN and FN isoform mRNA expression were increased after short term incubation with TGF-β1(2 d)in contrast to long term incubation with TGF-β1 for 6 d.After induction of migration, TGF-β1-preincubated CLPF showed higher amounts of FN and its isoforms and lower levels of total and phosphorylated FAK than untreated cells. CONCLUSION:Long term incubation of CLPF with TGF-β1 induced differentiation into myofibroblasts with enhancedα-SMA,reduced migratory potential and FAK phosphorylation,and increased FN production.In contrast,short term contact(6 h)of fibroblasts with TGF-β1 induced a dose-dependent increase of cell migration and FAK phosphorylation without induction ofα-SMA production. | Julia Brenmoehl Sandra Nicole Miller Claudia Hofmann Daniela Vogl Werner Falk Jrgen Schlmerich Gerhard Rogler | 2009 | World Journal of Gastroenterology2009，15，12： | 12 |
| 3 | Arterial Resection During Pancreatectomy for Pancreatic Cancer: A Systematic Review and Meta-Analysis显示文摘 | Nathan Mollberg Nuh N. Rahbari Moritz Koch Werner Hartwig Yumiko Hoeger Markus W. Büchler Jürgen Weitz | 2011 | Annals of Surgery2011，，6： | 5 |
| 4 | FOLFIRI plus cetuximab versus FOLFIRI plus bevacizumab as first-line treatment for patients with metastatic colorectal cancer (FIRE-3): a randomised, open-label, phase 3 trial显示文摘 | Volker Heinemann Ludwig Fischer von Weikersthal Thomas Decker Alexander Kiani Ursula Vehling-Kaiser Salah-Eddin Al-Batran Tobias Heintges Christian Lerchenmüller Christoph Kahl Gernot Seipelt Frank Kullmann Martina Stauch Werner Scheithauer J?rg Hielscher | 2014 | Lancet Oncology2014，，10： | 2 |
| 5 | Digital holography and its application for microsystems inspection显示文摘A large number of applications in the before mentioned sense is reported in the literature. In this paper a special remark will be given to the application of 3D deformation measurements using only one illumination direction for the recording of the two holograms in the reference and the loaded state, and only one observation direction for the | Werner Jüptner Christoph von Kopylow Claas Falldorf | 2008 | Optoelectronics Letters2008，4，1： | 2 |
| 6 | Comparative outcomes of rectal cancer surgery between elderly and non-elderly patients: a systematic review显示文摘 | Gilles Manceau Mehdi Karoui Andrew Werner Neil J Mortensen Laurent Hannoun | 2012 | Lancet Oncology2012，，12： | 2 |
| 7 | Rootstook and seion chilling effects on apple and peach bud break显示文摘 | YOUNG E WERNER D J | 1984 | Compact Fruit Tree1984，17，： | 2 |
| 8 | Respiratory gating enhances imaging of pulmonary nodules and measurement of tracer uptake in FDG PET/CT显示文摘 | Matthias K Werner J Anthony Parker | 2009 | AJR2009，193，6： | 1 |
| 9 | Lexipafant fails to improve survival in severe necrotizing pancreatitis in rats 显示文摘 | Rivera JA Werner J Warshaw AL | 1998 | Int J Pancreatol1998，23，2： | 1 |
| 10 | Topology design,routing and capacity dimensioning for ISL networks in broadband LEO satellite systems显示文摘 | Werner M Reings J Wauquiez F | 2001 | International Journal of Satellite Communication2001，，： | 1 |
| 11 | New pathophysiologic knowledge about acute pancreatitis显示文摘 | Klar E Werner J | 2000 | Chirurg2000，71，3： | 1 |
| 12 | Estrogen increases bone marrow-derived endothelial progenitor cell production and diminishes neointima formation 显示文摘 | Strehlow K Werner N Berweiler J | 2003 | Circulation2003，107，24： | 1 |
| 13 | An auto polyploidy-based genetic algorithm for enhanced evolution of linear polyfractal arrays 显示文摘 | PETKO J S WERNER D H | 2007 | IEEE Trans on Antenas and Propagation2007，55，3： | 1 |
| 14 | Calcium- activated potassium channels and the regulation of vascular tone显示文摘 | Ledoux J Werner ME Brayden JE | 2006 | Physiology2006，21，1： | 1 |
| 15 | A positive geno-type-phenotype correlation in a large cohort of patientswith Pseudohypoparathyroidism Type Ia and Pseudo-pseudohypoparathyroidism and 33 newly identified muta-tions in the GNAS gene显示文摘 | Thiele S Werner R Grotzinger J | 2015 | Mol Genet Genomic Med2015，3，2： | 1 |
| 16 | Useful markers for predicting severity and monitoring progression of acute panereatitis显示文摘 | Werner J Hartwing W Uhl W | 2003 | Pancreatology2003，3，： | 1 |
| 17 | Synthesis and haemolytic activity of oleanolic acid trisaccharides显示文摘 | Robert W Johann J | 1999 | Monatshefte fur Chemie Chemical Monthly1999，130，： | 1 |
| 18 | Wood gasification at fire level heat flux 显示文摘 | OHLEILLER T J KASHIWAGI T WERNER K | 1978 | Combust and Flame1978，69，： | 1 |
| 19 | Topology design,routing and capacity dimensioning for ISL networks in broadband LEO satellite systems显示文摘 | M Werner J Reings F Wauquiez | 2001 | International Journal of Satellite Communication2001，，： | 1 |
| 20 | Mutual amplification of apoptosis by statin-induced mitochondrial stress and doxorubicin toxicity in human rhabdomyosarcoma cells显示文摘 | Werner M Sacher J Hohenegger M | 2004 | Br J Pharmacol2004，143，6： | 1 |
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