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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 | Kontrastmittelsonografie bei B-Bild-morphologisch unklaren Leberraumforderungen – Diagnostische Treffsicherheit im klinischen Alltag (DEGUM-Multicenter – Studie)显示文摘 | D Strobel K Seitz W Blank A Schuler C Dietrich A Herbay M Friedrich-Rust G Kunze D Becker U Will W Kratzer F Albert C Pachmann K Dirks H Strunk C Greis T Bernatik | 2008 | Ultraschall in Med2008，，05： | 2 |
| 3 | Tactile exploration of shape after subcortical ischaemic infarction studied with PET 显示文摘 | Weder B Herzog H Seitz R | 1994 | Brain1994，117，： | 2 |
| 4 | Cleaning, milling and baking tests with hard red winter wheat containing deoxynivalenol 显示文摘 | Seitz L M Eustace W D Mohr H E | 1986 | Cereal Chemistry1986，63，： | 1 |
| 5 | The distribution of lithium in peridotitic and pyroxenitic mantle lithologies: An indicator of magmatic and metasomatic processes显示文摘 | Seitz H M Woodland A B | 2000 | Chemical Geology2000，166，1： | 1 |
| 6 | Low-frequency 4-probe impedance measuring system显示文摘 | Polczynski M H Seitz M A | 1979 | Med & Biol Eng & Comput1979，15，6： | 1 |
| 7 | The lithium isotopic composition of orogenic eclogites and deep subducted slabs显示文摘 | Marschall H R von Strandmann P A E P Seitz H M | 2007 | Earth and Planetary Science Let- ters2007，262，3： | 1 |
| 8 | The N-terminal region of the human papillomavirus L2 protein contains overlapping binding sites for neutralizing, cross-neutralizing and non-neu- tralizing antibodies显示文摘 | Rubio I Seitz H Canali E | 2011 | Virology2011，409，2： | 1 |
| 9 | Cholesterol-induced apoptotie macrophages elicit an inflammatory response in phagocytes, which is partially attenuated by the Mer receptor显示文摘 | Li Y Gerbod-Giannone MC Seitz H | 2006 | J Biol Chem2006，281，10： | 1 |
| 10 | 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 |
| 11 | Incidence,prevention,and management of complications following percutaneous nephrolitholapaxy显示文摘 | Seitz C Desai M Hcker A | 2012 | Eur Urol2012，61，1： | 1 |
| 12 | The modular multisensory DLR-HIT-Hand显示文摘 | LIU H MEUSEL P SEITZ N | 2007 | Mechanism and Machine Theory2007，42，： | 1 |
| 13 | 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 |
| 14 | Characterization and eval- uation of a PMMA-based 3D printing process 显示文摘 | Polzin C Spath S Seitz H | 2013 | Rapid Prototyping J2013，19，1： | 1 |
| 15 | The ac electrical behavior of polycrystalline ZrO2-CaO 显示文摘 | Chu S H Seitz M A | 1978 | J Solid State Chem1978，23，： | 1 |
| 16 | The Distribution of Lithiumin Peridotitic and Pyroxenitic Mantle Lithologies-AnIndicator of Magmatic and Metasomatic Processes 显示文摘 | Seitz H M Woodland A B | 2000 | Chemical Geology2000，166，12： | 1 |
| 17 | Hepatitis induced by Kava (Piper methysticum rhizome)显示文摘 | Stichel F Baumuller H M Seitz K | 2003 | Hepatol2003，39，： | 1 |
| 18 | A large imprinted microRNA gene cluster at the mouse DLK1-GtI2 domain 显示文摘 | Seitz H Royo H Bortolin ML | 2004 | Genome Res2004，14，： | 1 |
| 19 | Cardiac metastasis of a malignant fibrous histiocytoma occupying the right ventricle and infiltrating the myocardium显示文摘 | Wankmuller H Seitz K Seitz G | 1998 | Ultraschall Med1998，19，3： | 1 |
| 20 | Heparins modulate the IFN-β induced production of chemokines in human breast cancer cells 显示文摘 | Fluhr H Seitz T Zygmunt M | 2013 | Breast Cancer Res Treat2013，137，1： | 1 |
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