On the combined effect of soil fertility and topography on tree growth in subtropical forest ecosystems-a study from SE China

doi:10.1080/23802359.2016.1275835

CORC > 植物研究所 > 中国科学院植物研究所 > 植被与环境变化国家重点实验室

	On the combined effect of soil fertility and topography on tree growth in subtropical forest ecosystems-a study from SE China
	Scholten, Thomas ; Goebes, Philipp ; Kuehn, Peter ; Seitz, Steffen ; Assmann, Thorsten 11; Bauhus, Juergen 12; Bruelheide, Helge 1,13; Buscot, Francois 1,14; Erfmeier, Alexandra 11; Fischer, Markus 2
刊名	JOURNAL OF PLANT ECOLOGY
	2017
卷号	10 期号:1 页码:111-127
关键词	soil fertility topography soil erosion matter transport biodiversity DSM carbon stocks tree forest BEF-China China
ISSN号	1752-9921
DOI	10.1080/23802359.2016.1275835
文献子类	Article
英文摘要	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 x 5 m. Soil samples of different depth increments and data on tree height were collected from a total of 566 plots (667 m(2) 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 foot-slopes 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.
学科主题	Genetics & Heredity
电子版国际标准刊号	1752-993X
出版地	OXFORD
WOS关键词	ORGANIC-CARBON STOCKS ; SPECIES RICHNESS ; SITE INDEX ; DIVERSITY ; BIODIVERSITY ; CALCIUM ; TERRAIN ; LEAF ; CLASSIFICATION ; HETEROGENEITY
语种	英语
出版者	OXFORD UNIV PRESS
WOS记录号	WOS:000402042700004
资助机构	German Research Foundation (DFG)German Research Foundation (DFG) [FOR 891/1, FOR 891/2, FOR 891/3] ; National Natural Science Foundation of China (NSFC)National Natural Science Foundation of China (NSFC) [30710103907, 30930005, 31170457, 31210103910] ; Swiss National Science Foundation (SNSF)Swiss National Science Foundation (SNSF) ; Sino-German Centre for Research Promotion in Beijing [GZ 524, GZ 59, GZ 698, GZ 699, GZ 785] ; University of Tubingen, Germany (PROMOS)
内容类型	期刊论文
源URL	[http://ir.ibcas.ac.cn/handle/2S10CLM1/21979]
专题	植被与环境变化国家重点实验室
作者单位	1.Martin Luther Univ Halle Wittenberg, Inst Biol Geobot & Bot Garden, Kirchtor 1, D-06108 Halle, Germany 2.UFZ Helmholtz Ctr Environm Res, Theodor Lieser Straae 4, D-06120 Halle, Germany 3.Univ Bern, Dept Plant Sci, Altenbergrain 21, CH-3013 Bern, Switzerland 4.Peking Univ, 5 Yiheyuan Rd, Beijing 100871, Peoples R China 5.Chinese Acad Sci, Inst Bot, 20 Nanxincun, Beijing 100093, Peoples R China 6.Univ Zurich, Inst Evolutionary Biol & Environm, Winterthurerstrasse 190, CH-8006 Zurich, Switzerland 7.Univ Freiburg, Dept Geobotany, Fac Biol, D-79104 Freiburg, Germany 8.Chinese Acad Sci, Inst Soil Sci, 71 E Beijing Rd, Nanjing, Peoples R China 9.Tech Univ Dresden, Biodivers & Nat Conservat, Pienner Straae 7, D-01737 Tharandt, Germany 10.Univ Leipzig, Dept Systemat Bot & Funct Biodivers, Johannisallee 21, D-04103 Leipzig, Germany
推荐引用方式 GB/T 7714	Scholten, Thomas,Goebes, Philipp,Kuehn, Peter,et al. On the combined effect of soil fertility and topography on tree growth in subtropical forest ecosystems-a study from SE China[J]. JOURNAL OF PLANT ECOLOGY,2017,10(1):111-127.
APA	Scholten, Thomas.,Goebes, Philipp.,Kuehn, Peter.,Seitz, Steffen.,Assmann, Thorsten.,...&Schmidt, Karsten.(2017).On the combined effect of soil fertility and topography on tree growth in subtropical forest ecosystems-a study from SE China.JOURNAL OF PLANT ECOLOGY,10(1),111-127.
MLA	Scholten, Thomas,et al."On the combined effect of soil fertility and topography on tree growth in subtropical forest ecosystems-a study from SE China".JOURNAL OF PLANT ECOLOGY 10.1(2017):111-127.