|
|
|
题名
|
作者
|
年代
|
出处
|
被引量
|
| 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 | Green infrastructure: a planning concept for the urban transformation of former coal-mining cities显示文摘 | Peter Wirth Jiang Chang Ralf-Uwe Syrbe Wolfgang Wende Tinghao Hu | 2018 | International Journal of Coal Science & Technology2018，5，1： | 3 |
| 3 | Advances in the management of blunt traumatic bladder rupture:experience with 36 cases显示文摘 | Wirth GJ Peter R Poletti PA | 2010 | BJU in-ternational2010，106，9： | 1 |
| 4 | The current state of meniscal allograft transplantation and replacement显示文摘 | Peters G Wirth CJ | 2003 | Knee2003，10，1： | 1 |
| 5 | The current state of meniscal allograft trans- plantion and replacement显示文摘 | Peters G Wirth CJ | 2003 | Knee2003，10，1： | 1 |
| 6 | Is the efficacy of hormonal therapy affected by lymph node status? data from the bicalutamide (Casodex) Early Prostate Cancer program显示文摘 | Peter Iversen Manfred P Wirth William A See David G McLeod Ira Klimberg Donald Gleason Gerald Chodak James Montie Chris Tyrrell D.M.A Wallace Karl P.J Delaere Per Lundmo Teuvo L.J Tammela Jan-Erik Johansson Tom Morris Kevin Carroll | 2004 | Urology2004，，5： | 1 |
| 7 | The current state of meniscal allograft transplantation and replacement显示文摘 | Peters G Wirth CJ | 2003 | Knee2003，10，： | 1 |
| 8 | Advances in the management of blunt traumatic bladder rupture:experience with 36 cases显示文摘 | Wirth GJ Peter R Poletti PA | | 0，，： | 1 |
| 9 | The current state of meniscal allograft transplantation and replacement显示文摘 | Peters G Wirth CJ | 2003 | The Knee2003，10，1： | 1 |
| 10 | The current state of meniscal allograft transplantion and replacement显示文摘 | Peters G Wirth CJ | 2003 | Knee2003，10，1： | 1 |
| 11 | Advances in the management of blunt traumatic bladder rupture: experience with 36 cases 显示文摘 | Wirth GJ Peter R Poletti PA | 2010 | BJI5 Int2010，106，9： | 1 |
| 12 | Qualitative and quantitative assessment of urinary cytokeratin 8 and 18 fragments compared with voided urine cytology in diagnosis of bladder carcinoma显示文摘 | Oliver W. Hakenberg Susanne Fuessel Katja Richter Michael Froehner Sven Oehlschlaeger Peter Rathert Axel Meye Manfred P. Wirth | 2004 | Urology2004，，6： | 1 |
| 13 | Long-term results of meniscal allograft transplantation显示文摘 | Wirth CJ Peters G Milachowski KA | 2002 | Am J Sports Med2002，30，2： | 1 |
| 14 | Advances in the management of blunt traumatic bladder rupture:experience with 36 cases显示文摘 | Wirth GJ Peter R Poletti PA | 2010 | BJU Int2010，106，9： | 1 |
| 15 | Long-term results of meniseal allograft transplantation显示文摘 | Wirth CJ Peters G | 2002 | Am J Sports Med2002，30，2： | 1 |
| 16 | The current state of meniscal allograft transplantation and replacement显示文摘 | Peters G Wirth CJ | 2003 | Knee2003，10，： | 1 |
| 17 | Prospective evaluation of interferon-α in treatment of chronic active Crohn’s disease显示文摘 | Dr. Christoph Gasché MD Walter Reinisch MD Harald Vogelsang MD Regina P?tzi MD Va Markis MD Michael Micksche MD Hans Peter Wirth MD Alfred Gangl MD Herbert Lochs MD | 1995 | Digestive Diseases and Sciences1995，，4： | 1 |
| 18 | Advances in the management of blunt traumatic bladder rupture:experience with 36 cases显示文摘 | Wirth GJ Peter R Poletti PA | 2010 | BJU Int2010，106，： | 1 |
| 19 | Long-term results of meniseal allograft transplantation显示文摘 | Wirth C J Peters G | 2002 | Am J Sports Med2002，30，： | 1 |
| 20 | Long-term re- sults of meniseal allograft transplantation,显示文摘 | Wirth C J Peters G Milachowski KA | 2002 | Am J Sports Med2002，30，2： | 1 |
您所在的机构暂未开通此部分的功能，请联系管理员