Spatial patterns of leaf carbon, nitrogen stoichiometry and stable carbon isotope composition of Ranunculus natans C.A. Mey. (Ranunculaceae) in the arid zone of northwest China

Li, Zhongqiang; Yang, Lei; Lu, Wei; Guo, Wei; Gong, Xusheng; Xu, Jun; Yu, Dan

doi:10.1016/j.ecoleng.2015.01.010

Cited by 25 publications

(22 citation statements)

References 66 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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“…13 C values positively correlate with N (Hamerlynck et al 2004;Ma et al 2012;Prasolova et al 2005;Sparks and Ehleringer 1997), Zhou et al (2013) found that the low atmospheric pressure and temperatures of QinghaiTibet Plateau may preclude expression of positive relationship between d 13 C and N. Li et al (2015) also found no correlation between d…”

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confidence: 87%

“…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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“…Moreover, most studies of plant leaf stoichiometry have focused on terrestrial ecosystems, and considerably less attention has been devoted to freshwater systems. Until recently, only a small number of studies have examined regional geographical patterns of leaf stoichiometry in some freshwater macrophytes ( Xia et al, 2014 ; Li et al, 2015 ; Wang et al, 2015 ), and the results of these studies indicated that variability in foliar N%, P%, and N:P stoichiometry across diverse habitats showed considerable differences ( Xia et al, 2014 ; Li et al, 2015 ; Wang et al, 2015 ). These different results suggested that geographical patterns of leaf stoichiometry of macrophytes may change with regard to the spatial extent of the study and geographical location of the study area and highlighted that further studies are needed to understand geographical patterns of leaf stoichiometry at different spatial scales and study areas.…”

Section: Introductionmentioning

confidence: 99%

Spatial Patterns of Leaf Carbon, Nitrogen, and Phosphorus Stoichiometry of Aquatic Macrophytes in the Arid Zone of Northwestern China

Gong

et al. 2018

Front. Plant Sci.

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Ecological stoichiometry is a powerful indicator for understanding the adaptation of plants to environment. However, understanding of stoichiometric characteristics of leaf carbon (C%), nitrogen (N%), and phosphorus (P%) for aquatic macrophytes remains limited. In this study, 707 samples from 146 sites were collected to study the variations in leaf C%, N%, and P%, and tried to explore how different environmental conditions affect leaf C, N, and P stoichiometry. Results showed that the mean values of leaf C%, N%, P%, and N:P ratios were 39.95%, 2.12%, 0.14%, and 16.60% of macrophytes across the arid zone of northwestern China, respectively. And the mean values of leaf P% were lower than those from the Tibetan Plateau and eastern China, which maybe due to an adaptation strategy of the plants to the unique conditions in the arid zone in the long-term evolutionary process. The higher N:P ratios suggested that P was established as the limiting factor of the macrophytes communities in the arid zone of northwestern China. There were significant differences in leaf C%, N%, P%, and their ratios among different life forms. Our results also showed strong relationships between leaf N% and N:P ratios and longitude, leaf N%, P%, and N:P ratios and latitude, and leaf N% and P% and altitude, respectively. In addition, the results showed that pH can significantly influence leaf C%. Our results supported the temperature-plant physiology hypothesis owing to a negative relationship between leaf N% and P% of macrophytes and mean annual temperature in the arid zone of northwestern China. The different patterns of leaf stoichiometry between the arid zone of northwestern China and eastern China indicated that there were different physiological and ecological adaptability of macrophytes to environmental gradients in different climatic zones.

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Spatial patterns of leaf carbon, nitrogen stoichiometry and stable carbon isotope composition of Ranunculus natans C.A. Mey. (Ranunculaceae) in the arid zone of northwest China

Cited by 25 publications

References 66 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

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

Spatial Patterns of Leaf Carbon, Nitrogen, and Phosphorus Stoichiometry of Aquatic Macrophytes in the Arid Zone of Northwestern China

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