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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 | Genetics of the quantitative Lp(a) lipoprotein trait显示文摘 | Gerd Utermann Hans Georg Kraft Hans Jürgen Menzel Thomas Hopferwieser Christoph Seitz | 1988 | Human Genetics1988，，1： | 2 |
| 3 | Role of the premotor cortexin recovery from middle cerebral artery infarction 显示文摘 | Seitz R J Hflich P Binkofski F | 1998 | Arch Neuro11998，55，： | 2 |
| 4 | Correlation betweenmotor performance and cognitive functions in childrenborn<1250g at school age显示文摘 | Seitz J Jenni OG Molinari L | 2006 | Neuropediatrics2006，37，1： | 1 |
| 5 | Aminopenicillin- induced exanthema allows treatment with certain cephalosporins or phenoxymethyl penicillin显示文摘 | TRCKA J SEITZ CS BROCKER EB et cd | 2007 | J Antimicrob Chemother2007，60，1： | 1 |
| 6 | The continuum theory of lattice defects显示文摘 | Eshelby J D Turnbull Frederick Seitz | | 0，，： | 1 |
| 7 | The torus routing chip显示文摘 | Dally W J Seitz C L | 1986 | Distributed Computing1986，1，3： | 1 |
| 8 | Genetics of the quantitative Lp(a) lipoprotein trait显示文摘 | Gerd Utermann Hans Georg Kraft Hans Jürgen Menzel Thomas Hopferwieser Christoph Seitz | 1988 | Human Genetics1988，，1： | 1 |
| 9 | Anaphylaxis to iodinated contrast material:nonallergic hypersensitivity or Ig E-mediated allergy?显示文摘 | Trcka J Schmidt C Seitz CS | 2008 | Am J Roentgenology2008，190，： | 1 |
| 10 | A neural basis for general intelligence显示文摘 | Duncan J Seitz RJ Kolodny J | 2000 | Science2000，289，5478： | 1 |
| 11 | Comparison of 2-D turbo spin echo and 3-D gradient echo sequences for the detection of the trigeminal nerve and branches anatomy显示文摘 | Held P FrOnd R Seitz J | 2001 | Euro J Radio2001，37，： | 1 |
| 12 | Deadlock-free message routing in multiprocessor interconnection networks显示文摘 | DALLY W J SEITZ C L | 1987 | IEEE Transactions on Computers1987，36，5： | 1 |
| 13 | Quantification of Blood Folw in the Carotid Arteries comparison of Doppler Ultrasound and Three Different Phase-contrast Magnetic Resonance Imaging Sequences Investigative显示文摘 | Seitz J Strotzer M Wild T | 2001 | Radiology2001，36，11： | 1 |
| 14 | Establishment of a rhabdomyasarcoma xenograft model in human-adapted mice显示文摘 | Seitz G Pfeiffer M Fuchs J | 2010 | Oncol Rep2010，24，4： | 1 |
| 15 | Anaphylaxis to iodinated contrast material: nonallergic hypersensitivity or IgE-mediated allergy?显示文摘 | Trcka J Schmidt C Seitz C S | 2008 | AM J Roentgenol2008，190，3： | 1 |
| 16 | Parvovlrus B19 DNA in plasma pools and plasma derivatives 显示文摘 | Schmidt I Blumel J Seitz H | 2001 | Vox Sang2001，81，4： | 1 |
| 17 | Adenocarcinomas of the distal esophagus and gastric cardia: what chemotherapy or chemoradiotherapy for recurrent or metastatic disease? 显示文摘 | Seitz J F Duffaud F Dahan L | 2001 | Cancer Radiother2001，5，1： | 1 |
| 18 | Chemolithotrophic growth of Desulfovibrio desulfuricans with hydrogen coupled to ammonifieation of nitrate or nitrite 显示文摘 | Seitz H J Cypionka H | 1986 | Archives of Microbiology1986，146，1： | 1 |
| 19 | Influence of thegrain size on the in vivo degradation behaviour of the mag-nesium alloy LAE442 显示文摘 | Ullmann B Reifenrath J Seitz JM ef al | 2013 | Proc Inst Mech Eng H2013，227，3： | 1 |
| 20 | Multicenter non-randomized phase Ⅱ study of raltitrexed ( Tomudex ) and oxaliplatin in non-pretreated metastatic colorectal cancer patients 显示文摘 | Seitz JF Bennouna J Paillot B | 2002 | Ann Oncol2002，13，7： | 1 |
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