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114篇 您的检索式:作者名="WERNER Michael"
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1On 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 2017Journal of Plant Ecology2017,10,1:22
2Endoscopic radiofrequency ablation for malignant biliary obstruction: a nationwide retrospective study of 84 consecutive applications显示文摘Werner Dolak Florian Schreiber Hubert Schwaighofer Michael Gschwantler Wolfgang Plieschnegger Alexander Ziachehabi Andreas Mayer Ludwig Kramer Andreas Kopecky Christiane Schrutka-K?lbl Gernot Wolkersd?rfer Christian Madl Frieder Berr Michael Trauner Andre 2014Surgical Endoscopy2014,,3:3
3Structure and function of cytokinin oxidase/dehydrogenase genes of maize, rice, Arabidopsis and other species显示文摘Thomas Schmülling Tomá? Werner Michael Riefler Eva Krupková Isabel Bartrina y Manns 2003Journal of Plant Research2003,,3:2
4Multicenter experience using simeprevir and sofosbuvir with or without ribavirin to treat hepatitis C genotype 1 after liver transplant显示文摘Surakit Pungpapong Bashar Aqel Michael Leise K. Tuesday Werner Jennifer L. Murphy Tanisha M. Henry Kristen Ryland Amy E. Chervenak Kymberly D. Watt Hugo E. Vargas Andrew P. Keaveny 2015Hepatology2015,,6:2
5High-pitch spiral acquisition: A new scan mode for coronary CT angiography显示文摘Stephan Achenbach Mohamed Marwan Tiziano Schepis Tobias Pflederer Herbert Bruder Thomas Allmendinger Martin Petersilka Katharina Anders Michael Lell Axel Kuettner Dieter Ropers Werner G. Daniel Thomas Flohr 2009Journal of Cardiovascular Computed Tomography2009,,2:2
6Prospectively ECG-triggered high-pitch spiral acquisition for coronary CT angiography using dual source CT: technique and initial experience显示文摘Michael Lell Mohamed Marwan Tiziano Schepis Tobias Pflederer Katharina Anders Thomas Flohr Thomas Allmendinger Willi Kalender Dirk Ertel Carsten Thierfelder Axel Kuettner Dieter Ropers Werner G. Daniel Stephan Achenbach 2009European Radiology2009,,11:2
7Diagnostic efficacy of gadoxetic acid (Primovist)-enhanced MRI and spiral CT for a therapeutic strategy: comparison with intraoperative and histopathologic findings in focal liver lesions显示文摘Renate Hammerstingl Alexander Huppertz Josy Breuer Thomas Balzer Anthony Blakeborough Rick Carter Lluis Castells Fusté Gertraud Heinz-Peer Werner Judmaier Michael Laniado Riccardo M. Manfredi Didier G. Mathieu Dieter Müller Koenraad Mortelè Peter Reimer M 2008European Radiology2008,,:2
8Peroral Endoscopic Myotomy for the Treatment of Achalasia: An International Prospective Multicenter Study显示文摘Daniel Von Renteln Karl–Hermann Fuchs Paul Fockens Peter Bauerfeind Melina C. Vassiliou Yuki B. Werner Gerald Fried Wolfram Breithaupt Henriette Heinrich Albert J. Bredenoord Jan F. Kersten Tessa Verlaan Michael Trevisonno Thomas R?sch 2013Gastroenterology2013,,2:2
9Characterisation of particulates and carcinogenic polycyclic aromatic hydrocarbons in wintertime wood-fired heating in residential areas显示文摘Md. Aynul Bari Guenter Baumbach Johannes Brodbeck Michael Struschka Bertram Kuch Werner Dreher Guenter Scheffknecht 2010Atmospheric Environment2010,,40:1
10MicroRNA-124 Controls the Proliferative, Migratory, and Inflammatory Phenotype of Pulmonary Vascular Fibroblasts显示文摘Daren Wang Hui Zhang Min Li Maria G. Frid Amanda R. Flockton B. Alexandre McKeon Michael E. Yeager Mehdi A. Fini Nicholas W. Morrell Soni S. Pullamsetti Sivareddy Velegala Werner Seeger Timothy A. McKinsey Carmen C. Sucharov Kurt R. Stenmark 2014Circulation Research2014,,1:1
11Caspase 3 inactivates biologically active full length interleukin-33 as a classical cytokine but does not prohibit nuclear translocation显示文摘Shafaqat Ali Dang Quan Nguyen Werner Falk Michael Uwe Martin 2009Biochemical and Biophysical Research Communications2009,,3:1
12Rheological studies of barley ( 1 3) ( 1-4 )--Glucan in concentrated solut ion : mechanis- tic and kinetic investigation of the gel formation显示文摘Nicolai B6hm Werner Michael Kulicke 1999Carbohy- drate Research1999,315,3:1
13Phase I-II Trial of Cetuximab, Capecitabine, Oxaliplatin, and Radiotherapy as Preoperative Treatment in Rectal Cancer显示文摘Claus R?del Dirk Arnold Matthias Hipp Torsten Liersch Kathrin Dellas Igors Iesalnieks Robert Michael Hermann Florian Lordick Axel Hinke Werner Hohenberger Rolf Sauer 2008International Journal of Radiation Oncology Biology Physics2008,,4:1
14Smart CMOS image sensor arrays 显示文摘 Werner Brockherde Ralf Hauschild 1997IEEE Trans on Electron Devices1997,44,10:1
15A signal peptide cleavage site mutation in the cationic trypsinogen gene is strongly associated with chronic pancreatitis显示文摘Heiko Witt * Werner Luck ? Michael Becker ? 1999Gastroenterology1999,,1:1
16Applicaion of different types of high-voltage supplie,s on industrial electrostatic precipitators显示文摘Norbert Grass Werner Hartmann Michael Kl chner 2004IEEE Trans on Industry Applications2004,40,6:1
17Monocytes Activate Natural Killer Cells via Inflammasome-Induced Interleukin 18 in Response to Hepatitis C Virus Replication显示文摘Elisavet Serti Jens M. Werner Michael Chattergoon Andrea L. Cox Volker Lohmann Barbara Rehermann 2014Gastroenterology2014,,:1
18Arabidopsis HIPP proteins regulate endoplasmic reticulum-associated degradation of CKX proteins and cytokinin responses.显示文摘Eukaryotic organisms are equipped with quality-control mechanisms that survey protein folding in the endoplasmic reticulum (ER) and remove non-native proteins by ER-associated degradation (ERAD). Recent research has shown that cytokinin-degrading CKX proteins are subjected to ERAD during plant development. The mechanisms of plant ERAD, including the export of substrate proteins from the ER, are not fully understood and the molecular components involved in the ERAD of CKX are unknown. We show that heavy metal-associated isoprenylated plant proteins (HIPP) interact specifically with CKX proteins synthesized in the ER and processed by ERAD. CKX-HIPP protein complexes were detected at the ER as well as in the cytosol, suggesting that the complexes involve retrotranslocated CKX protein species. Altered CKX levels in HIPP-overexpressing and higher-order hipp mutant plants suggest that the studied HIPP proteins control the ERAD of CKX. Deregulation of CKX proteins caused corresponding changes in the cytokinin signaling activity and triggered typical morphological cytokinin responses. Notably, transcriptional repression of HIPP genes by cytokinin indicates a feedback regulatory mechanism of cytokinin homeostasis and signaling responses. Moreover, the loss of HIPP genes constitutively activates the unfolded protein response and compromises the ER stress tolerance, supporting the conclusion that HIPPs represent novel functional components of plant ERAD.Tianqi Guo Henriette Weber Michael C.E.Niemann Lisa Theisl Georgeta Leonte Ondrej Novak Tomas Werner 2021Molecular Plant2021,14,11:1
19Photodynamic action of some sensitizers by photooxidation of luminol显示文摘Franz Wierrani Andreas Kubin Hans Loew Michael Henry Babette Sp?ngler Klaus Bodner Werner Grünberger Robert Ebermann Gerhart Alth 2002Naturwissenschaften2002,,10:1
20A signal peptide cleavage site mutation in the cationic trypsinogen gene is strongly associated with chronic pancreatitis显示文摘Heiko Witt * Werner Luck ? Michael Becker ? 1999Gastroenterology1999,,1:1
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