Variations in the top-layer soil freezing/thawing process from 2009 to 2018 in the Maqu area of the Tibetan Plateau

Jia, Dongyu; Liu, Min; Li, Kaiming; Wang, Xin; Wang, Zuoliang; Wen, Jun; Lai, Xin

doi:10.1007/s00704-020-03382-2

Cited by 17 publications

(6 citation statements)

References 26 publications

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“…This phenomenon might be due to the inhibiting effects of dry and low‐temperature conditions on vegetation productivity and microbial turnover in Tibetan alpine grasslands (Piao et al, 2006; Zhang et al, 2021), which could then restrict the accumulation of microbial necromass C in soil. Besides, the freeze‐thaw events that occurred on the Tibetan Plateau could destroy microbial cells and release cell wall fragments during freezing (Jia et al, 2020; Sawicka et al, 2010). The released microbial necromass could then be leached out or used by the surviving microbial community after thawing (Matzner & Borken, 2008; Nielsen et al, 2001).…”

Section: Discussionmentioning

confidence: 99%

Depth‐dependent drivers of soil microbial necromass carbon across Tibetan alpine grasslands

Fang

Chen

et al. 2021

Global Change Biology

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Section: Discussionmentioning

confidence: 99%

Depth‐dependent drivers of soil microbial necromass carbon across Tibetan alpine grasslands

Fang

Chen

et al. 2021

Global Change Biology

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“…Wang et al (2020a) attributed the change in seasonally frozen ground to the rising of minimum air temperatures in winter. Numerous studies suggested that the onset date of soil freeze was clearly lagged on the QTP, which further supports the result of the delayed SFP (Jia et al 2020;Li et al 2012).…”

Section: Variations In Sfpmentioning

confidence: 61%

Trends of Freezing Period And Its Main Cause On The Qinghai-Tibetan Plateau From 1961 To 2018

Zhao

Gao

Yang

2021

Preprint

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The ecosystems of Qinghai-Tibetan Plateau (QTP) are very sensitive to climate change because of their unique structure and function. However, little attention has been paid to variations in cold non-growing season. In this study, based on daily mean temperature from 63 meteorological stations throughout the QTP during the period 1961−2018, the spatial and temporal variations in the freezing period (FP) were investigated. The FP was defined as the period between the date of the first autumn freeze and the date of the first spring thaw in the second year. Understanding how the FP changes are imperative in predicting future climate change and decision-making for implementing ecological conservation on the plateau. The results showed that the start of freezing period (SFP) exhibited a pronounced increasing trend with a rate of 0.0704 days year−1 and the end of freezing period (EFP) showed an obviously decreasing trend with a rate of −0.2537 days year−1 at the regional scale. The length of freezing period (LFP) presented a significant negative trend at a rate of −0.3256 days year−1 for regional scale, which was mainly attributed to the earlier EFP. Spatially, earlier EFP and shorter LFP mainly occurred in the south and north of the QTP. Furthermore, this study found that the variations in the SFP, EFP, and LFP were highly dependent on the elevation with EFP and LFP are positively correlated with elevation, while SFP is negatively correlated with elevation.

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“…attributed the change in seasonally frozen ground to the rising of minimum air temperatures in winter. Numerous studies suggested that the onset date of soil freeze was clearly lagged on the QTP, which further supports the result of the delayed SFP(Jia et al 2020;Li et al 2012).…”

mentioning

confidence: 62%

Trends of freezing period and its main cause on the Qinghai-Tibetan Plateau from 1961 to 2018

Zhao

Gao

Yang

2021

Theor Appl Climatol

View full text Add to dashboard Cite

The ecosystems of Qinghai-Tibetan Plateau (QTP) are very sensitive to climate change because of their unique structure and function. However, little attention has been paid to variations in cold non-growing season. In this study, based on daily mean temperature from 63 meteorological stations throughout the QTP during the period 1961−2018, the spatial and temporal variations in the freezing period (FP) were investigated. The FP was de ned as the period between the date of the rst autumn freeze and the date of the rst spring thaw in the second year. Understanding how the FP changes are imperative in predicting future climate change and decision-making for implementing ecological conservation on the plateau. The results showed that the start of freezing period (SFP) exhibited a pronounced increasing trend with a rate of 0.0704 days year −1 and the end of freezing period (EFP) showed an obviously decreasing trend with a rate of −0.2537 days year −1 at the regional scale. The length of freezing period (LFP) presented a signi cant negative trend at a rate of −0.3256 days year −1 for regional scale, which was mainly attributed to the earlier EFP. Spatially, earlier EFP and shorter LFP mainly occurred in the south and north of the QTP. Furthermore, this study found that the variations in the SFP, EFP, and LFP were highly dependent on the elevation with EFP and LFP are positively correlated with elevation, while SFP is negatively correlated with elevation.

show abstract

Variations in the top-layer soil freezing/thawing process from 2009 to 2018 in the Maqu area of the Tibetan Plateau

Cited by 17 publications

References 26 publications

Depth‐dependent drivers of soil microbial necromass carbon across Tibetan alpine grasslands

Depth‐dependent drivers of soil microbial necromass carbon across Tibetan alpine grasslands

Trends of Freezing Period And Its Main Cause On The Qinghai-Tibetan Plateau From 1961 To 2018

Trends of freezing period and its main cause on the Qinghai-Tibetan Plateau from 1961 to 2018

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