Plant diversity does not buffer drought effects on early-stage litter mass loss rates and microbial properties

2013 ◽  
Vol 19 (9) ◽  
pp. 2795-2803 ◽  
Author(s):  
Anja Vogel ◽  
Nico Eisenhauer ◽  
Alexandra Weigelt ◽  
Michael Scherer-Lorenzen
Keyword(s):  
Mass Loss ◽  
Plant Diversity ◽  
Early Stage ◽  
Litter Mass ◽  
Microbial Properties ◽  
Litter Mass Loss ◽  
Drought Effects ◽  
Loss Rates

Litter mass-loss rates in late stages of decomposition in a climatic transect of pine forests. Long-term decomposition in a Scots pine forest. IX.

1995 ◽  
Vol 73 (10) ◽  
pp. 1509-1521 ◽  
Author(s):  
Maj-Britt Johansson ◽  
Björn Berg ◽  
Vernon Meentemeyer
Keyword(s):  
Mass Loss ◽  
Scots Pine ◽  
Actual Evapotranspiration ◽  
The Arctic ◽  
Decomposition Rates ◽  
Lignin Concentration ◽  
Arctic Circle ◽  
Litter Mass ◽  
Litter Mass Loss ◽  
Loss Rates

We investigated rate-regulating factors for decomposition rates of Scots pine needle litter at 22 sites over a 2000-km long transect ranging from the Arctic Circle in Scandinavia to northern continental Europe. We found very different patterns for rate-regulating factors in the early stages of decomposition as compared to later stages (> 20% accumulated mass loss). The initial decomposition rates (measured over the 1st year) ranged from about 10.9%/year close to the Arctic Circle to about 43.7%/year in south Sweden. The dominant rate-regulating factor was climate (average annual temperature, and actual evapotranspiration), and none of the substrate-quality factors was significant. In the later stages, the annual mass loss varied from 2.2%/year to 41.5%/year. The rate-regulating factors were climate and the litter's concentration of lignin. We found that the effect of lignin concentration on litter mass-loss rate varied with site and this relative effect was negatively related with actual evapotranspiration. The effect of lignin concentration on mass-loss rates near the Arctic Circle was thus low (at low values for actual evapotranspiration) whereas in Southern Sweden and on the continent the rate-regulating effect of lignin was higher. Key words: foliar litter, decomposition, lignin, climatic transect, rate-regulating factors, climate change.

Litter mass loss rates in pine forests of Europe and Eastern United States: some relationships with climate and litter quality

1993 ◽  
Vol 20 (3) ◽  
pp. 127-159 ◽  
Author(s):  
B. Berg ◽  
M. P. Berg ◽  
P. Bottner ◽  
E. Box ◽  
A. Breymeyer ◽  
...  
Keyword(s):  
United States ◽  
Mass Loss ◽  
Litter Quality ◽  
Pine Forests ◽  
Eastern United States ◽  
Litter Mass ◽  
Litter Mass Loss ◽  
Loss Rates

Litter mass-loss rates in late stages of decomposition at some climatically and nutritionally different pine sites. Long-term decomposition in a Scots pine forest. VIII

1993 ◽  
Vol 71 (5) ◽  
pp. 680-692 ◽  
Author(s):  
Björn Berg ◽  
Charles McClaugherty ◽  
Maj-Britt Johansson
Keyword(s):  
Mass Loss ◽  
Scots Pine ◽  
Loss Rate ◽  
Mass Loss Rate ◽  
Climatic Conditions ◽  
Initial Mass ◽  
Lignin Concentration ◽  
Litter Mass ◽  
Litter Mass Loss ◽  
Loss Rates

The patterns of some chemical changes and litter mass-loss rates were investigated for a variety of types of decomposing litter in pine forests under different climatic conditions and at sites with different nutrient status. A mixed deciduous forest was also compared. In initially chemically identical Scots pine needle litter incubated under different climatic conditions, the lignin concentration increased faster as a function of accumulated mass loss when the climatic conditions promoted a higher initial mass-loss rate. Also under artificially created conditions, e.g., after fertilization and irrigation, the same phenomenon occurred. Litter mass-loss rates decreased during decomposition as lignin concentrations increased. The relative decrease was significantly larger at sites with a climate that promoted an initially higher mass-loss rate. At the same lignin concentration, however, the mass-loss rate was significantly lower in drier and colder conditions, viz. climatic conditions that promote a lower initial mass-loss rate. Nevertheless, at very high lignin concentrations that lignin clearly dominated over climate as a rate-regulating factor. A possible consequence of this observation could be a higher rate of organic matter accumulation at sites that initially promote a high initial mass-loss rate for litter than at sites with conditions that give lower initial rates, at least for a given species of litter. Key words: litter, decomposition, lignin, chemical changes, climatic transect, effect of climate change.

Effects of management on plant litter traits and consequences for litter mass loss and Collembola functional diversity in a Mediterranean agro-forest system

Pedobiologia ◽  
2019 ◽  
Vol 75 ◽  
pp. 38-51 ◽  
Author(s):  
Eduardo Nascimento ◽  
Filipa Reis ◽  
Filipe Chichorro ◽  
Cristina Canhoto ◽  
Ana Lúcia Gonçalves ◽  
...  
Keyword(s):  
Mass Loss ◽  
Functional Diversity ◽  
Plant Litter ◽  
Litter Mass ◽  
Litter Traits ◽  
Litter Mass Loss

Manganese dynamics in decomposing needle and leaf litter — a synthesis

2013 ◽  
Vol 43 (12) ◽  
pp. 1127-1136 ◽  
Author(s):  
Björn Berg ◽  
Björn Erhagen ◽  
Maj-Britt Johansson ◽  
Lars Vesterdal ◽  
Mikaeel Faituri ◽  
...  
Keyword(s):  
Mass Loss ◽  
Norway Spruce ◽  
Scots Pine ◽  
Deciduous Species ◽  
Limit Values ◽  
Litter Mass ◽  
Litter Mass Loss ◽  
Species Groups ◽  
Mn Concentration ◽  
Mn Concentrations

The aim of the present synthesis paper was to determine whether concentration changes and net release of manganese (Mn), as related to accumulated litter mass loss, are related to initial Mn concentration, mean annual temperature (MAT), mean annual precipitation (MAP), and tree genus or species. We also examined whether limit values for decomposition are related to initial litter Mn concentration, MAT, and MAP. We compiled 84 foliar litter decomposition studies, conducted mainly in boreal and temperate forest ecosystems, for which Mn dynamics had been well documented. Manganese concentration and amount were related to accumulated litter mass loss at each sampling time for each single study, as well as for (i) all studies combined (n = 748) and (ii) for species groups viz. Norway spruce (Picea abies (L.) Karst.) (n = 284), pine (Pinus) species (n = 330), and deciduous species (n = 214). The changes in Mn concentration with accumulated mass loss followed quadratic functions showing significantly higher Mn concentrations for Norway spruce vs. Scots pine (Pinus sylvestris L.) (p < 0.0001) and vs. deciduous species (p < 0.01), as well as significantly higher for deciduous species vs. Scots pine (p < 0.0001). Manganese release rates were different among the three species groups (p < 0.001). Still, rates were related to initial Mn concentrations (p < 0.001) for all litter types combined and for the three species groups. Norway spruce released Mn more slowly than pine and deciduous species. Rates were related to climatic factors for litter of Norway spruce and deciduous species. Limit values for all litter and for pine species separately were related to Mn (p < 0.001) and MAT (p < 0.001). For Norway spruce, limit values were related to MAT (p < 0.001) and MAP (p < 0.01). It appears that Norway spruce litter retains Mn more strongly in the litter structure, producing humus richer in Mn than does litter of pine and deciduous species.

Factors regulating litter mass loss and lignin degradation in late decomposition stages

2008 ◽  
Vol 318 (1-2) ◽  
pp. 217-228 ◽  
Author(s):  
Amalia Virzo De Santo ◽  
Anna De Marco ◽  
Angelo Fierro ◽  
Björn Berg ◽  
Flora A. Rutigliano
Keyword(s):  
Mass Loss ◽  
Lignin Degradation ◽  
Litter Mass ◽  
Litter Mass Loss ◽  
Decomposition Stages

Formation of soil organic matter via biochemical and physical pathways of litter mass loss

2015 ◽  
Vol 8 (10) ◽  
pp. 776-779 ◽  
Author(s):  
M. Francesca Cotrufo ◽  
Jennifer L. Soong ◽  
Andrew J. Horton ◽  
Eleanor E. Campbell ◽  
Michelle L. Haddix ◽  
...  
Keyword(s):  
Organic Matter ◽  
Soil Organic Matter ◽  
Mass Loss ◽  
Litter Mass ◽  
Litter Mass Loss

Effect of snow patches on leaf litter mass loss of two shrubs in an alpine forest

2013 ◽  
Vol 37 (4) ◽  
pp. 306-316 ◽  
Author(s):  
Wei HE ◽  
Fu-Zhong WU ◽  
Wan-Qin YANG ◽  
Qi-Qian WU ◽  
Min HE ◽  
...  
Keyword(s):  
Mass Loss ◽  
Leaf Litter ◽  
Litter Mass ◽  
Alpine Forest ◽  
Litter Mass Loss
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