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Status:
accepted
Title:
Impact of species diversity, stand age and environmental factors on leaf litter decomposition in subtropical forests in China
Created at:
2016-01-08
Updated at:
2016-01-08
Envisaged journal:
Plant and Soil (accepted); DOI 10.1007/s11104-015-2737-5
Envisaged date:
2016-01-08
Rationale:
Tree diversity is considered to influence decomposition either by changing environmental conditions or by non-additive litter mixture effects. Thus, we examined the influence of tree species richness, forest age and environmental factors on single-species decomposition, and tested the hypothesis that high litter species diversity induces predominantly positive non-additive mixture effects on decomposition processes. Decomposition trials using litter bags were performed in subtropical forests in China. Plot-specific decompositions rates of the abundant species Schima superba were related to environmental factors across 27 forest stands differing in age and tree species richness. Effects of litter species diversity on decomposition and N loss was assessed based on 27 plot-specific litter mixtures comprising 7 to 17 species. Decomposition rate of Schima superba leaf litter was mainly affected by stand characteristics and microclimate but not tree diversity. Two thirds of plot-specific litter mixtures showed a positive non-additive mixture effect whose strength was marginally positively influenced by litter species richness. Tree diversity at stand level does not directly influence decomposition of a common litter substrate. However, our results suggest that tree species richness in the litter layer can indirectly promote decomposition and nutrient cycling via positive non-additive mixture effects.
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CSPs: Leaf litter decomposition in CSPs: decomposition rates (k-values)

Abstract:
This data set set belongs to the SP5 litter decomposition experiment that was structured in three parts. First we determined single-species litter decomposition constants of 26 woody species, second litter decomposition of Schima superba was asses...

Id: 346
People: 2
Projects: 1
Version: 1
Attachments: 0
Created at: 2013-06-06
Updated at: 2016-03-03

CSPs: Leaf litter decomposition in CSPs: remaining litter mass, carbon and nitrogen concentration during decomposition

Abstract:
This data set set belongs to the SP5 litter decomposition experiment that was structured in three parts. First we determined single-species litter decomposition constants of 26 woody species, second litter decomposition of Schima superba was asses...

Id: 345
People: 2
Projects: 1
Version: 1
Attachments: 0
Created at: 2013-06-06
Updated at: 2016-03-03

CSPs: Comparative study plot (CSP) information to be shared with all BEF-China scientists

Abstract:
This research is designed to collect data on diversity in subtropical forest ecosystems and relate it to ecosystem services such as primary productivity, carbon storage, prevention of soil erosion, and invasion resistance to exotic plants. This da...

Id: 205
People: 5
Projects: 2
Version: 2
Attachments: 0
Created at: 2012-03-18
Updated at: 2016-03-09

CSPs: Climate measurements: microclimate of each CSP (06 2011 - 09/10 2012)

Abstract:
The accompanying file is an aggregate of the data from June 2011 to September/October 2011. Microclimate data from all 27 CSPs. Climate data consists of relative air humidity and air tempreature. Weekly means are given and were calulated from 15 m...

Id: 193
People: 3
Projects: 1
Version: 1
Attachments: 2
Created at: 2012-03-01
Updated at: 2017-01-20

CSPs: LAI and PAR Gutianshan 2009

Abstract:
Measuring light interception is important for understanding the conditions at the surface. Questions which had to be answered: How much of the light is reaching the ground and how much is hitting leaf material in the canopy? How efficient were the...

Id: 164
People: 2
Projects: 1
Version: 1
Attachments: 0
Created at: 2012-01-04
Updated at: 2017-01-31

CSPs: Soil Gravimetric Water Content (mineral soil)

Abstract:
In all four seasons (summer 2008, autumn 2008, spring 2009 and winter 2010) the gravimetric soil water content of the mineral soil in up to 6 soil layers was determined. Soil sampling was performed in parallel with nitrate and ammonium extractions.

Id: 190
People: 2
Projects: 1
Version: 1
Attachments: 0
Created at: 2012-02-29
Updated at: 2016-03-03

CSPs: Litter layer thickness, mass and C and N pools at the forest floor

Abstract:
Thickness and mass of the standing leaf litter layer was measured in all CSPs in spring 2009, summer 2009, autumn 2009 and winter 2010. This piece of work will contribute to calculate total carbon and nitrogen pool sizes of the broad-leaved fore...

Id: 191
People: 2
Projects: 1
Version: 1
Attachments: 0
Created at: 2012-02-29
Updated at: 2016-03-03
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