Effect of Detritus Manipulation on Different Organic Matter Decompositions in Temperate Deciduous Forest Soils

Kotroczó, Zsolt; Juhos, Katalin; Bíró, Borbála; Kocsis, Tamás; Pabar, Sándor Attila; Varga, Csaba; Fekete, István

doi:10.3390/f11060675

Cited by 32 publications

(15 citation statements)

References 39 publications

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“…Decreasing water availability and increasing heat stress, has caused a substantial change in wood stocks in many regions (Berki and Tar 1991;Tomiczek 1993;Fensham and Holman 1999;Nepstad et al 2007;Van Mantgem et al 2009;Allen et al 2010;Tóth et al 2011;Anderegget al 2012), and may significant affect the C balance of forest soils (Fekete et al 2017). Mean annual temperature (MAT), mean annual precipitation (MAP), as well as growing season temperature and precipitation, strongly affect SOM decomposition (Chen et al 2000;Kotroczó et al 2020). Precipitation, or water entering the soil through irrigation, has complex effects on both the quantitative and qualitative characteristics of SOC (Berthrong et al 2012).…”

Section: Introductionmentioning

confidence: 99%

How will a drier climate change carbon sequestration in soils of the deciduous forests of Central Europe?

et al. 2020

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Global warming is accompanied by increasing water stress across much of our planet. We studied soil biological processes and changes in soil organic carbon (SOC) storage in 30 Hungarian oak forest sites in the Carpathian Basin along a climatic gradient (mean annual temperature (MAT) 9.6–12.1 °C, mean annual precipitation (MAP) 545–725 mm) but on similar gently sloped hillsides where the parent materials are loess and weathered dust inputs dating from the end of the ice age. The purpose of this research was to understand how a drying climate, predicted for this region, might regulate long-term SOC sequestration. To examine the effects of decreasing water availability, we compared soil parameters and processes in three categories of forest that represented the moisture extremes along our gradient and that were defined using a broken-stick regression model. Soil biological activity was significantly lower in the driest (“dry”) forests, which had more than double the SOC concentration in the upper 30 cm layer (3.28 g C/100 g soil ± 0.11 SE) compared to soils of the wettest (“humid”) forests (1.32 g C/100 g soil ± 0.09 SE), despite the fact that annual surface litter production in humid forests was ~ 37% higher than in dry forests. A two-pool SOM model constrained to fit radiocarbon data indicates that turnover times for fast and slow pools are about half as long in the humid soil compared to the dry soil, and humid soils transfer C twice as efficiently from fast to slow pools. Enzyme activity and fungal biomass data also imply shorter turnover times associated with faster degradation processes in the soils of humid forests. Thermogravimetry studies suggest that more chemically recalcitrant compounds are accumulating in the soils of dry forests. Taken together, our results suggest that the predicted climate drying in this region might increase SOC storage in Central European mesic deciduous forests even as litter production decreases.

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Section: Introductionmentioning

confidence: 99%

How will a drier climate change carbon sequestration in soils of the deciduous forests of Central Europe?

et al. 2020

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“…Litter decomposition is a fundamental process in the carbon and nutrient cycling across all ecosystems (Chapin et al, 2011;Berg and McClaugherty, 2020). Decomposition rate is most closely related to litter quality (Cornwell et al, 2008;Djukic et al, 2018;Kotroczó et al, 2020), climate (Davidson and Janssens, 2006;Tóth et al, 2007;See et al, 2019), nutrient availability (Fog, 1988;Luo et al, 2018;Lilleskov et al, 2019;Juhos et al, 2021), and the abundance and diversity of soil organisms (Coûteaux et al, 1995;González and Seastedt, 2001;Pioli et al, 2020). The climate exerts a direct effect on decomposition by stimulation of decomposer activity through the increased temperature and precipitation (Zhang et al, 2008).…”

Section: Introductionmentioning

confidence: 99%

Effects of Climate and Atmospheric Nitrogen Deposition on Early to Mid-Term Stage Litter Decomposition Across Biomes

Kwon

Shibata²,

Kepfer‐Rojas³

et al. 2021

Front. For. Glob. Change

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Litter decomposition is a key process for carbon and nutrient cycling in terrestrial ecosystems and is mainly controlled by environmental conditions, substrate quantity and quality as well as microbial community abundance and composition. In particular, the effects of climate and atmospheric nitrogen (N) deposition on litter decomposition and its temporal dynamics are of significant importance, since their effects might change over the course of the decomposition process. Within the TeaComposition initiative, we incubated Green and Rooibos teas at 524 sites across nine biomes. We assessed how macroclimate and atmospheric inorganic N deposition under current and predicted scenarios (RCP 2.6, RCP 8.5) might affect litter mass loss measured after 3 and 12 months. Our study shows that the early to mid-term mass loss at the global scale was affected predominantly by litter quality (explaining 73% and 62% of the total variance after 3 and 12 months, respectively) followed by climate and N deposition. The effects of climate were not litter-specific and became increasingly significant as decomposition progressed, with MAP explaining 2% and MAT 4% of the variation after 12 months of incubation. The effect of N deposition was litter-specific, and significant only for 12-month decomposition of Rooibos tea at the global scale. However, in the temperate biome where atmospheric N deposition rates are relatively high, the 12-month mass loss of Green and Rooibos teas decreased significantly with increasing N deposition, explaining 9.5% and 1.1% of the variance, respectively. The expected changes in macroclimate and N deposition at the global scale by the end of this century are estimated to increase the 12-month mass loss of easily decomposable litter by 1.1–3.5% and of the more stable substrates by 3.8–10.6%, relative to current mass loss. In contrast, expected changes in atmospheric N deposition will decrease the mid-term mass loss of high-quality litter by 1.4–2.2% and that of low-quality litter by 0.9–1.5% in the temperate biome. Our results suggest that projected increases in N deposition may have the capacity to dampen the climate-driven increases in litter decomposition depending on the biome and decomposition stage of substrate.

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“…In the vegetation-soil-microbial cycle system, soil microorganisms participate in the soil nutrient cycle and energy transfer. They also indirectly affect the growth of aboveground vegetation by improving soil aeration, decomposition, and increasing organic matter content, thus directly impacting the function of the soil ecosystem [ 12 , 13 ]. Studies have reported that microorganisms have various properties, directly or indirectly increasing the soil content of nitrogen, phosphorus, potassium, iron, and other minerals [ 9 , 10 ].…”

Section: Introductionmentioning

confidence: 99%

Artificial Plantation Responses to Periodic Submergence in Massive Dam and Reservoir Riparian Zones: Changes in Soil Properties and Bacterial Community Characteristics

Arif

et al. 2021

Biology

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Plant and microbiome interactions are necessary for plant nutrient acquisition. However, relatively little is known about the responses of roots, bulk, and rhizosphere soil microbial communities in different artificial vegetation types (woody and herbaceous) in riparian areas of massive dams and reservoirs. Therefore, this study aims to assess such responses at elevations of 165–170 m a.s.l. in the riparian zones of the Three Gorges Dam Reservoir, China. The samples were collected containing the rhizosphere soil, bulk soil, and roots of herbaceous and woody vegetation at different emergence stages in 2018. Then, all the samples were analyzed to quantify the soil properties, bacterial community characteristics, and their interaction in the early and late emergence phases. In different periods, the weight of dominant soil bacteria, including Proteobacteria, Acidobacteria, Actinobacteria, Chloroflexi, and Cyanobacteria, was higher, and their composition was different in the rhizosphere, bulk soil, and endophytes. Moreover, the soil co-occurrence networks indicated that the weight of soil physical properties was higher than chemical properties in the early emergence stage. In contrast, the weight of chemical properties was relatively higher in the late emergence stage. Furthermore, the richness and diversity of the bacterial community were mainly affected by soil organic matter. This study suggests that these herbaceous and woody vegetation are suitable for planting in reservoir areas affected by hydrology and human disturbance in light of soil nutrients and soil microbial communities, respectively. Additionally, these results provide valuable information to inoculate the soil with key microbiota members by applying fertilizers, potentially improving plant health and soil production.

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Effect of Detritus Manipulation on Different Organic Matter Decompositions in Temperate Deciduous Forest Soils

Cited by 32 publications

References 39 publications

How will a drier climate change carbon sequestration in soils of the deciduous forests of Central Europe?

How will a drier climate change carbon sequestration in soils of the deciduous forests of Central Europe?

Effects of Climate and Atmospheric Nitrogen Deposition on Early to Mid-Term Stage Litter Decomposition Across Biomes

Artificial Plantation Responses to Periodic Submergence in Massive Dam and Reservoir Riparian Zones: Changes in Soil Properties and Bacterial Community Characteristics

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