Responses of carbon isotope ratios of C_3 herbs to humidity index in northern China

Liu, Xianzhao; Su, Qing; Li, Chaokui; Zhang, Yong; Wang, Qing

doi:10.3906/yer-1305-2

Cited by 9 publications

(8 citation statements)

References 34 publications

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“…Consistent with these studies, we found here that leaf δ 13 C of the three Caragana species varied widely along the arid and semi-arid transect, ranging from −28.65‰ to −24.77‰ (mean −26.73‰). In addition, populations of each species differed significantly in leaf δ 13 C, which is consistent with many other studies [6][7][8][9][10]25]. Generally, leaf δ 13 C is related to the ratio of CO 2 partial pressure inside the leaf and ambient air (c i /c a ) and has been found to be strongly affected by many factors, such as precipitation [16], temperature [19], irradiance [56], and leaf intrinsic traits such as leaf N and P concentrations [33][34][35][40][41][42].…”

Section: Variation In Leaf δ 13 C Of Three Caragana Species Along Thesupporting

confidence: 89%

“…As such, being able to assess the spatial variability of leaf δ 13 C across environmental gradients and identifying the patterns and controls of leaf δ 13 C would improve our understanding of how individual plants and ecosystems may respond and adapt to future global changes, including climate warming, atmospheric CO 2 enrichment, shifts in precipitation, and N deposition [2][3][4][5]. Studies on this topic have recently received increasing attention [6][7][8][9][10].…”

Section: Introductionmentioning

confidence: 99%

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Spatial Variation in Leaf Stable Carbon Isotope Composition of Three Caragana Species in Northern China

Liang

Zhou

et al. 2018

Forests

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Leaf stable carbon isotope (δ 13 C) composition provides comprehensive insight into plant carbon cycles and water use efficiency and has also been widely used to evaluate the response of plants to environmental change. In the present study, leaf δ 13 C was analyzed in samples of Caragana microphylla Lam., C. liouana Zhao, and C. korshinskii Kom. from 38 populations. These species provide great environmental benefits and economic value and are distributed east to west continuously across northern China. We studied the relationship of δ 13 C to altitude, mean annual precipitation (MAP), mean annual temperature (MAT), mean annual relative humidity (RH), leaf nitrogen (N), and phosphorus (P) concentrations to examine the patterns and controls of leaf δ 13 C variation in each species. Results indicated that, across the three species, leaf δ 13 C significantly decreased with MAP, RH, and leaf N and P concentrations, while it increased with altitude and MAT. However, patterns and environmental controls of leaf δ 13 C varied proportionally with species. C. korshinskii was mainly controlled by MAP and leaf N concentration, C. liouana was controlled by both MAT and MAP, and C. microphylla was mainly controlled by MAT. Further analysis indicated significant differences in leaf δ 13 C between species, which tended to increase from C. microphylla to C. korshinskii. Overall, these results suggest that the three Caragana species may respond differently to future climate change due to different controlling factors on leaf δ 13 C variation, as well as differentiation in water use efficiency, which likely contributes to the geographical distribution of these species.

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Section: Variation In Leaf δ 13 C Of Three Caragana Species Along Thesupporting

confidence: 89%

Section: Introductionmentioning

confidence: 99%

Spatial Variation in Leaf Stable Carbon Isotope Composition of Three Caragana Species in Northern China

Liang

Zhou

et al. 2018

Forests

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“…The values of Tamarix leaf δ 13 C in the Minfeng sampling site are consistent with the results from Lop Nor (ranging from -24.75‰ to -22.38‰, with a mean of -23.56‰, Xia et al, 2004) and Cele (ranging from -25.008‰ to -23.138‰, with a mean of -24.137‰, Zhang et al, 2017) regions. The δ 13 C signature is heavier than that of arid areas in northern China (Liu et al, 2014a) and broadly in accordance with the δ 13 C composition of C3 plants in arid environments. The slight difference between the range and average values of δ 13 13 C values due to improved water conditions.…”

Section: Features Of the δ 13 Csupporting

confidence: 71%

Reconstruction of Temperature for the Past 400 Years in the Southern Margin of the Taklimakan Desert Based on Carbon Isotope Fractionation of Tamarix Leaves

Z¹,

Ullah²,

Wang³

et al. 2019

Appl. Ecol. Env. Res.

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“…Thus, foliar d 13 C has been increasingly employed in plant ecological and global change studies, and its patterns and controlling factors have been often studied (Körner et al 1991;Li et al 2015;Liu et al 2014;Ma et al 2012;Peri et al 2012;Zhou et al 2011).…”

Section: Introductionmentioning

confidence: 99%

Relationships between foliar carbon isotope composition and elements of C3 species in grasslands of Inner Mongolia, China

et al. 2016

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Foliar elements and their ratios can be related to foliar carbon isotope composition (d 13 C) through their involvement in plant transpiration, photosynthesis, and osmotic adjustment. In order to investigate these relationships in grasslands of Inner Mongolia, China, d13 C and element contents of dominant C 3 species at 47 grassland sites were determined. For C 3 species, d13 C showed no correlation with carbon (C), positive correlations with nitrogen (N), nitrogen:phosphorus ratio (N/P) and carbon:phosphorus ratio (C/P), and negative correlations with phosphorus (P), potassium (K), and carbon:nitrogen ratio (C/N), while correlation with P was subsidiary to positive correlation between P and K. These correlations indicate that plants in Inner Mongolia that survive in dry conditions may profit from their higher water use efficiency via stomatal regulation and N-related photosynthetic capacity rather than K-related osmotic adjustment and P-related photosynthetic capacity. Further, plants adapt to severe environments by having higher water and phosphorus use efficiency at the expense of nitrogen use efficiency. However, these correlations differed among plant functional groups (PFGs), e.g., d13 C was negatively correlated with N in shrubs in contrast to other life forms. A possible explanation is that shrubs adapt to low N availability by having lower photosynthetic nitrogen use efficiency (PNUE), so that N is not positively related to photosynthetic rate in shrubs. Obviously, data on stomatal conductance, PNUE, and cell osmotic pressure are needed to fully understand these correlations and the strategies of plants adapted to arid environments.

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Responses of carbon isotope ratios of C_3 herbs to humidity index in northern China

Cited by 9 publications

References 34 publications

Spatial Variation in Leaf Stable Carbon Isotope Composition of Three Caragana Species in Northern China

Spatial Variation in Leaf Stable Carbon Isotope Composition of Three Caragana Species in Northern China

Reconstruction of Temperature for the Past 400 Years in the Southern Margin of the Taklimakan Desert Based on Carbon Isotope Fractionation of Tamarix Leaves

Relationships between foliar carbon isotope composition and elements of C3 species in grasslands of Inner Mongolia, China

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