The moss genus Didymodon as an indicator of climate change on the Tibetan Plateau

Kou, Jin; Wang, Zhihui; Yu, Fangyuan; Sun, Yue‐Hua; Feng, Chao; Shao, Xingling

doi:10.1016/j.ecolind.2020.106204

Cited by 27 publications

(26 citation statements)

References 75 publications

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“…In the Carpathians, a strong isothermality leads to high CARs, which is in line with measurements of carbon flux from peatlands, where strong isothermality has been linked to the shift of a bog to a net carbon sink (Webster et al, 2018). This may be related to the strong impact that isothermality has on bryophyte distributions, with some evidence suggesting that range expansion of some species may occur under increasingly greater isothermality, especially in humid regions (Kou et al, 2020).…”

Section: Data-model Comparisonsupporting

confidence: 83%

Carbon accumulation rates of Holocene peatlands in central–eastern Europe document the driving role of human impact over the past 4000 years

et al. 2021

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Abstract. Peatlands are one of the largest terrestrial carbon sinks on the planet, yet little is known about the carbon accumulation rates (CARs) of mountainous peatlands. The long-term variability in the size of the associated carbon sink and its drivers remain largely unconstrained, especially when the long-term anthropogenic impact is also considered. Here, we present a composite CAR record of nine peatlands from central–eastern Europe (Romania and Serbia) detailing variability in the rates of carbon accumulation during the Holocene. We show examples of extremely high long-term rates of carbon accumulation (LORCA>120 gCm-2yr-1), indicating that mountain peatlands constitute an efficient regional carbon sink at times. By comparing our data to modelled palaeoclimatic indices and to measures of anthropogenic impact we disentangle the drivers of peat carbon accumulation in the area. Variability in early- and mid-Holocene CARs is linked to hydroclimatic controls, with high CARs occurring during the early Holocene and lower CARs associated with the transition to cooler and moister mid-Holocene conditions. By contrast, after 4000 years (calibrated) before present (years BP), the trends in CARs indicate a divergence from hydroclimate proxies, suggesting that other processes became the dominant drivers of peat CARs. We propose that enhanced erosion following tree cover reduction as well as increased rates of long-distance atmospheric dust fallout might have played a role, as both processes would result in enhanced mineral and nutrient supply to bog surfaces, stimulating peatland productivity. Surprisingly though, for the last 1000 years, reconstructed temperature is significantly correlated with CARs, with rising temperatures linked to higher CARs. Under future climate conditions, which are predicted to be warmer in the region, we predict that peat growth may expand but that this is entirely dependent upon the scale of human impact directly affecting the sensitive hydrological budget of these peatlands.

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Section: Data-model Comparisonsupporting

confidence: 83%

Carbon accumulation rates of Holocene peatlands in central–eastern Europe document the driving role of human impact over the past 4000 years

et al. 2021

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“…In the Carpathians, a strong isothermality leads to high CARs, in line with measurements of carbon flux from peatlands, where strong isothermality has been linked to the shift of a bog to a net carbon sink (Webster et al, 2018). This may be related to the strong impact isothermality has on bryophyte distributions, with evidence to suggest range expansion of some species may occur under increasingly greater isothermality, especially in humid regions (Kou et al, 2020).…”

Section: Data-model Comparisonsupporting

confidence: 78%

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Longman

2021

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“…is one of the largest genera in the Pottiaceae and includes approximately 126 species worldwide. The genus has the greatest diversity found in temperate and mountainous regions and drylands, growing mainly on rocks or soil (Zander 1993, 2007, Frey and Stech 2009, Kou et al 2020). The species diversity varies greatly in regions from a wide variety of habitats and high level of environmental heterogeneity, and the Didymodon community is also an important component of biological soil crusts (Song et al 2015, Zhao et al 2016).…”

Section: Introductionmentioning

confidence: 99%

Didymodon sinicus (Pottiaceae, Musci), a new species from China and its phylogenetic position based on molecular data

Feng

Kou

et al. 2022

Nordic Journal of Botany

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A new species, Didymodon sinicus C. Feng & J. Kou, is described and illustrated based on materials collected from Inner Mongolia, Yunnan and Tibet of China. It is characterized by ovate‐lanceolate to ovate‐triangular leaves that are erect to patent when wet, auriculate leaf base, acute leaves apices, distally bistratose leaf margins, the yellowish color in KOH, short‐excurrent costa with guide cells in 2–3 layers and without ventral stereids, and smooth laminal cells. A phylogenetic analysis based on DNA sequences of ITS, rps4, trnM‐trnV conﬁrms D. sinicus as a sister to the clade of D. obtusus J. Kou, X.‐M. Shao & C. Feng and the new species belongs to the genus Didymodon s.str.

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The moss genus Didymodon as an indicator of climate change on the Tibetan Plateau

Cited by 27 publications

References 75 publications

Carbon accumulation rates of Holocene peatlands in central–eastern Europe document the driving role of human impact over the past 4000 years

Carbon accumulation rates of Holocene peatlands in central–eastern Europe document the driving role of human impact over the past 4000 years

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Didymodon sinicus (Pottiaceae, Musci), a new species from China and its phylogenetic position based on molecular data

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