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

Research output: Journal contributionsJournal articlesResearchpeer-review

Standard

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; Kühn, Peter et al.
In: Journal of Plant Ecology, Vol. 10, No. 1, 01.02.2017, p. 111-127.

Research output: Journal contributionsJournal articlesResearchpeer-review

Harvard

Scholten, T, Goebes, P, Kühn, P, Seitz, S, Aßmann, T, Bauhus, J, Bruelheide, H, Buscot, F, Erfmeier, A, Fischer, M, Härdtle, W, He, J-S, Ma, K, Niklaus, PA, Scherer-Lorenzen, M, Schmid, B, Shi, X, Song, Z, von Oheimb, G, Wirth, C, Wubet, T & Schmidt, K 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, vol. 10, no. 1, pp. 111-127. https://doi.org/10.1093/jpe/rtw065

APA

Scholten, T., Goebes, P., Kühn, P., Seitz, S., Aßmann, T., Bauhus, J., Bruelheide, H., Buscot, F., Erfmeier, A., Fischer, M., Härdtle, W., He, J.-S., Ma, K., Niklaus, P. A., Scherer-Lorenzen, M., Schmid, B., Shi, X., Song, Z., von Oheimb, G., ... Schmidt, K. (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. https://doi.org/10.1093/jpe/rtw065

Vancouver

Scholten T, Goebes P, Kühn P, Seitz S, Aßmann T, Bauhus J 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. 2017 Feb 1;10(1):111-127. doi: 10.1093/jpe/rtw065

Bibtex

@article{aa1b420ccef94c058b9ce26d4c4a672d,
title = "On the combined effect of soil fertility and topography on tree growth in subtropical forest ecosystems - a study from SE China",
abstract = "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, carbonrich 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 pHKCl 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.",
keywords = "Ecosystems Research, soil fertility, topography, soil erosion, matter transport, biodiversity, DSM, carbon stocks, tree, forest, BEF-China, China, soil fertility, topography, soil erosion, matter transport, biodiversity, DSM, carbon stocks, tree, forest, BEF-China, China",
author = "Thomas Scholten and Philipp Goebes and Peter K{\"u}hn and Steffen Seitz and Thorsten A{\ss}mann and J{\"u}rgen Bauhus and Helge Bruelheide and Francois Buscot and Alexandra Erfmeier and Markus Fischer and Werner H{\"a}rdtle and Jin-Sheng He and Keping Ma and Niklaus, {Pascal A.} and Michael Scherer-Lorenzen and Bernhard Schmid and Xuezheng Shi and Zhengshan Song and {von Oheimb}, Goddert and Christian Wirth and Tesfaye Wubet and Karsten Schmidt",
year = "2017",
month = feb,
day = "1",
doi = "10.1093/jpe/rtw065",
language = "English",
volume = "10",
pages = "111--127",
journal = "Journal of Plant Ecology",
issn = "1752-9921",
publisher = "Oxford University Press",
number = "1",

}

RIS

TY - JOUR

T1 - On the combined effect of soil fertility and topography on tree growth in subtropical forest ecosystems - a study from SE China

AU - Scholten, Thomas

AU - Goebes, Philipp

AU - Kühn, Peter

AU - Seitz, Steffen

AU - Aßmann, Thorsten

AU - Bauhus, Jürgen

AU - Bruelheide, Helge

AU - Buscot, Francois

AU - Erfmeier, Alexandra

AU - Fischer, Markus

AU - Härdtle, Werner

AU - He, Jin-Sheng

AU - Ma, Keping

AU - Niklaus, Pascal A.

AU - Scherer-Lorenzen, Michael

AU - Schmid, Bernhard

AU - Shi, Xuezheng

AU - Song, Zhengshan

AU - von Oheimb, Goddert

AU - Wirth, Christian

AU - Wubet, Tesfaye

AU - Schmidt, Karsten

PY - 2017/2/1

Y1 - 2017/2/1

N2 - 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, carbonrich 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 pHKCl 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.

AB - 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, carbonrich 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 pHKCl 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.

KW - Ecosystems Research

KW - soil fertility

KW - topography

KW - soil erosion

KW - matter transport

KW - biodiversity

KW - DSM

KW - carbon stocks

KW - tree

KW - forest

KW - BEF-China

KW - China

KW - soil fertility

KW - topography

KW - soil erosion

KW - matter transport

KW - biodiversity

KW - DSM

KW - carbon stocks

KW - tree

KW - forest

KW - BEF-China

KW - China

UR - http://www.scopus.com/inward/record.url?scp=85014538466&partnerID=8YFLogxK

U2 - 10.1093/jpe/rtw065

DO - 10.1093/jpe/rtw065

M3 - Journal articles

VL - 10

SP - 111

EP - 127

JO - Journal of Plant Ecology

JF - Journal of Plant Ecology

SN - 1752-9921

IS - 1

ER -

DOI

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