Litter species traits, but not richness, contribute to carbon and nitrogen dynamics in an alpine meadow on the Tibetan Plateau

Jiang, Jing; Li, Yikang; Wang, Mo‐Zhu; Zhou, Caiping; Cao, Guangmin; Shi, Peili; Song, Minghua

doi:10.1007/s11104-013-1859-x

Cited by 39 publications

(32 citation statements)

References 48 publications

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“…1a, c), and the addition of litter to microcosms significantly enhanced the emission of soil CO 2 and N 2 O. Similar results were found in other ecosystems (Huang et al 2004;Mungai and Motavalli 2006;Jiang et al 2013;Begum et al 2014). The enhanced emissions may be due to the supply of energy during litter decomposition, which can stimulate significantly microbial activity (Ma et al 2013).…”

Section: Effects Of Litter Treatments On Soil C and N Dynamicssupporting

confidence: 82%

“…EXP value was calculated by averaging the results of the respective single litter experiments according to the following equation (Jiang et al 2013):…”

Section: Data Analysis and Statisticsmentioning

confidence: 99%

“…Alpine grassland is the dominant ecosystem in this region, covering about 94.4 % of the total area (Gao et al 2009). Plant growth here is limited by the low levels of soil nutrient, especially low levels of available N (Jiang et al 2013). In the present study, we employed a litter-mixing experiment, in which the litter of four alpine steppe species (SP: Stipa purpurea, CM: Carex moorcroftii, LP: Leontopodium pusillum, AN: Artemisia nanschanica) were incubated alone or in mixtures with soil, to answer the following questions: (1) Do plant litters affect soil C and N dynamics in the alpine steppe in Northern Tibet?…”

Section: Introductionmentioning

confidence: 99%

“…In many ecosystems, especially in arctic and alpine ecosystems, plant productivity largely depends on the nutrients returned from litter to soil (Cornwell et al 2008). Soil ecological processes, including soil organic matter decomposition, soil respiration and soil N transformation, as well as soil microbial activity, are related to litter decomposition (Vargas et al 2006;Meier and Bowman 2008;Jiang et al 2013). The understanding of diversity effects on plant litter decomposition and its consequences for soil C and N cycling is therefore indispensable for an accurate comprehension of terrestrial ecosystem functioning (Lorena et al 2005).…”

Section: Introductionmentioning

confidence: 99%

“…Previous studies demonstrated that littermixing effects on litter decomposition and soil ecological processes were unpredictable, since positive (synergistic), negative (antagonistic), or neutral (additive) effects were observed (Gartner and Cardon 2004;Heemsbergen et al 2004;Hättenschwiler et al 2005;Chapman et al 2013;Jiang et al 2013). Probably, these contradictories were partly due to differences in litter chemical composition (Wardle et al 1997;Heemsbergen et al 2004;Meier and Bowman 2010;Jiang et al 2013;Shi et al 2013). For example, litter N had a positive effect on total mass loss because it increased the loss of lignin, N, and soluble C (Talbot and Treseder 2012).…”

Section: Introductionmentioning

confidence: 99%

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Litter chemical structure is more important than species richness in affecting soil carbon and nitrogen dynamics including gas emissions from an alpine soil

et al. 2015

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Section: Effects Of Litter Treatments On Soil C and N Dynamicssupporting

confidence: 82%

“…EXP value was calculated by averaging the results of the respective single litter experiments according to the following equation (Jiang et al 2013):…”

Section: Data Analysis and Statisticsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Litter chemical structure is more important than species richness in affecting soil carbon and nitrogen dynamics including gas emissions from an alpine soil

et al. 2015

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Fertilization with nitrogen and/or phosphorus lowers soil organic carbon sequestration in alpine meadows

Hou

Zhang

et al. 2018

Land Degrad Dev

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Nutrient additions can increase carbon (C) inputs to soil, but there is no consensus about the response of soil organic C (SOC) storage and C sequestration. For the Tibetan alpine meadows, little is known about the effects and mechanisms of nitrogen (N) and phosphorus (P) addition on SOC stocks. In this study, we applied N and/or P fertilization for 7 years and analyzed soil changes in bulk density, pH, SOC, soil inorganic C (SIC), δ13C, and microbial biomass C (MBC), as well as stocks of SOC, SIC, and MBC for soil to a depth of 40 cm. We found that C:N decreased in 0–20 cm, and pH decreased at both 0–20 cm and 20–40 cm after fertilization. Fertilization with N and/or P decreased SOC stocks in 0–20 cm by 5–12% and SOC stocks from 0 to 40 cm by 3–5%. This SOC stock decline was associated with changes in SOC concentration but not with changes in bulk density. The SIC stock was 18% of total soil C, and was not influenced by either N or P fertilization. Soil δ13C in the 0–20 cm layer was depleted by fertilization with N or N + P, whereas P enriched soil δ13C. Soil MBC was positively correlated with SOC concentration, whereas soil δ13C was negatively correlated with SOC concentration. Soil δ13C, as a proxy of decomposition rate, indicated potentially higher SOC decomposition under N fertilization. These findings suggest that fertilization with N and/or P lowered SOC sequestration in Tibetan alpine meadows.

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Soil organic matter turnover depending on land use change: Coupling C/N ratios, δ¹³C, and lignin biomarkers

et al. 2020

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Soil organic carbon (SOC) stocks have been greatly depleted across the globe by conversion of wetlands to croplands, agroforestry, and urban areas. Here, we investigated SOC distribution and turnover in four land use types: a wetland, cropland, forestland, and construction land in the Baiyangdian Wetland, Northern China. The C : N ratios were up to 1.70‐times larger in cropland, forestland, and construction land than in the original wetland because of faster N losses compared to C following wetland conversion. The δ13C values of SOC increased with depth in wetland, and showed an overall depletion compared with the other three land use types. Acid‐to‐Aldehyde ratios of syringyl in wetland were 0.72–1.14‐, 0.72–1.72‐, and 1.18–1.43‐times, and cinnamyl/vanillyl ratios were 0.56–1.05‐, 0.22–0.48‐, and 0.40–0.76‐times those of cropland, forestland, and construction land, which reflects faster lignin decomposition rate in wetlands. The β value was defined by the slope of the linear regression between the logarithm of SOC and δ13SOC values, and decreased from cropland over construction land and forestland to wetland, reflecting the faster SOC turnover with the lower β values. However, SOC content and storage were up to 2.29‐ and 2.07‐times higher in wetlands than in soils of other land use types. The combination of C : N ratios, δ13C, and lignin monomer composition can explain the decrease of β value (corresponding to faster SOC turnover), and can be used as effective proxies to evaluate the sources and turnover of SOC in response to land use changes.

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Litter species traits, but not richness, contribute to carbon and nitrogen dynamics in an alpine meadow on the Tibetan Plateau

Cited by 39 publications

References 48 publications

Litter chemical structure is more important than species richness in affecting soil carbon and nitrogen dynamics including gas emissions from an alpine soil

Litter chemical structure is more important than species richness in affecting soil carbon and nitrogen dynamics including gas emissions from an alpine soil

Fertilization with nitrogen and/or phosphorus lowers soil organic carbon sequestration in alpine meadows

Soil organic matter turnover depending on land use change: Coupling C/N ratios, δ¹³C, and lignin biomarkers

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Litter species traits, but not richness, contribute to carbon and nitrogen dynamics in an alpine meadow on the Tibetan Plateau

Cited by 39 publications

References 48 publications

Litter chemical structure is more important than species richness in affecting soil carbon and nitrogen dynamics including gas emissions from an alpine soil

Litter chemical structure is more important than species richness in affecting soil carbon and nitrogen dynamics including gas emissions from an alpine soil

Fertilization with nitrogen and/or phosphorus lowers soil organic carbon sequestration in alpine meadows

Soil organic matter turnover depending on land use change: Coupling C/N ratios, δ13C, and lignin biomarkers

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Soil organic matter turnover depending on land use change: Coupling C/N ratios, δ¹³C, and lignin biomarkers