Individual and time-varying tree-ring growth to climate sensitivity of Pinus tabuliformis Carr. and Sabina przewalskii Kom. in the eastern Qilian Mountains, China

Zhang, Fen; Gou, Xiaohua; Liu, Wenhuo; Levia, Delphis F.; Li, Yingjun

doi:10.1007/s00468-012-0772-x

Cited by 17 publications

(7 citation statements)

References 32 publications

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“…5), which may be related to the close relationships between temperature and N-rich chloroplasts and chlorophyll (Elser et al 2000b;Evans 1989;Norby et al 2010;Sterner and Elser 2002). In contrast, the growth rate, which is mainly limited by drought in this study area (Gou et al 2007;Gou et al 2015a;Gou et al 2012;Tian et al 2007;Zhang et al 2013;Zhang et al 2018b;Zhang et al 2016a;Zhang et al 2009;Zhang et al 2014) , had a much greater impact on the P concentration than the N concentration (Agren 2008;Elser et al 2003;Elser et al 2000b). The total effects of temperature, drought and their interaction (a+b+ab), the correlations of soil variables (Fig.…”

Section: Environmental Effects On Leaf Traitscontrasting

confidence: 54%

“…In the semiarid region (MAP>300 mm), a large number of tree-ring analyses have clearly shown that temperature is positively correlated with the tree radial growth of Qilian juniper in this environment (Fig. 6i) (Gou et al 2007;Gou et al 2012;Zhang et al 2013;Zhang et al 2009;Zhang et al 2014), which may be due to the close positive relationship between temperature and photosynthesis (Elser et al 2000b;Evans 1989;Norby et al 2010;Sterner and Elser 2002). The growth rate of Qilian juniper would therefore be accelerated with increasing MAT.…”

Section: The Growth Rate Hypothesismentioning

confidence: 89%

“…Leaf N and P concentrations of Norway spruce (Picea abies L.) in Europe and Metasequoia glyptostroboides Hu & W.C. Cheng along the eastern coastline of China were distinctly higher than those of Qilian juniper (Kang et al 2011;Zhang et al 2018a) (Table 4), probably because the growth rates of Norway spruce and M. glyptostroboides are generally higher than that of Qilian juniper (Esper et al 2012;Gou et al 2015b;Helama et al 2018;Ponocna et al 2018;Tumajer et al 2017;Zhang et al 2013;Zhang et al 2018b;Zhang et al 2018c) and N and P concentrations increase with increasing growth rates (Agren 2008;Elser et al 2003;Elser et al 2000b).…”

Section: Benchmarking Qilian Juniper Leaf Traitsmentioning

confidence: 99%

“…In this environment, Qilian juniper plays a key role in maintaining soil stability, conserving water, and mitigating regional droughts and floods (Gao et al 2013;Zhang et al 2018b). Previous dendrochronology, cambial phenology, and model simulation studies have indicated that this species is highly sensitive to temperature and drought (Gou et al 2015a;Gou et al 2015b;Zhang et al 2013;Zhang et al 2018b;Zhang et al 2018c;Zhang et al 2016a;Zhang et al 2014) and, thus, represents an ideal study subject. Specifically, our objectives were (1) to identify the leaf traits of Qilian juniper and their paired correlations in the cold and arid environment, (2) to compare the spatial and seasonal variations in the leaf traits with LAT, LON, ALT, and SEA,…”

Section: Introductionmentioning

confidence: 99%

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Variations in leaf traits of Juniperus przewalskii from an extremely arid and cold environment

Wang

Gou

Zhang

et al. 2019

Science of The Total Environment

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How leaf traits vary with environmental and climatic variables in cold and arid environments is an essential issue in 5 environmental ecology. Here, we analyzed the variations in leaf nitrogen (N) and phosphorus (P) stoichiometry and leaf 6 dry matter content (LDMC) in Qilian juniper (Juniperus przewalskii Kom.) growing in 14 environmentally different plots 7 on the northeastern Tibetan Plateau. The results showed that the N and P concentrations, N:P ratio and LDMC of Qilian 8 juniper were 10.89 mg.g -1 , 1.04 mg.g -1 , 10.80 and 483.06 mg.g -1 , respectively. The spatial coefficients of the variations in 9 leaf N and P stoichiometry were significantly higher than the seasonal ones, and the correlations of leaf N and P concentrations with spatial variables were stronger than their correlations with the season. During the growing season, only the leaf N concentration and N:P ratio significantly increased. Soil nutrients were highly positively significantly correlated with leaf P concentrations but negatively correlated with the N:P ratio and LDMC. However, leaf N concentrations showed no significant correlations with soil nutrients. We suggest that the effects of temperature on the N concentration and LDMC were stronger than the effects of drought, while those on the P concentration and N:P ratio were weaker. Drought reduced leaf N and P concentrations and increased the N:P ratio and LDMC. In the arid region, with an increasing mean annual temperature (MAT), leaf N concentration significantly decreased, and LDMC significantly increased. In the semi-arid region, as MAT increased, leaf N and P concentrations significantly increased and LDMC and the N:P ratio significantly decreased. These opposite results supported the growth rate hypothesis that plant N and P concentrations increase while the N:P ratio and LDMC decrease as the growth rate increases.

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Section: Environmental Effects On Leaf Traitscontrasting

confidence: 54%

Section: The Growth Rate Hypothesismentioning

confidence: 89%

Section: Benchmarking Qilian Juniper Leaf Traitsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Variations in leaf traits of Juniperus przewalskii from an extremely arid and cold environment

Wang

Gou

Zhang

et al. 2019

Science of The Total Environment

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“…Studies on Pinus tabulaeformis and Sabina przewalskii in the eastern Qilian Mountains (northwest China) [15] and Pinus koraiensis on the north slope of Changbai Mountain (northeast China) [16] indicated that the chronologies of older trees had higher parameters (e.g., standard deviation and mean sensitivity) and contain more climatic information. A study in the arid region of Kongtong Mountain (northwest China) found that Pinus tabulaeformis and Picea purpurea older than 200 years were more sensitive to temperature in spring and summer than trees younger than 200 years [17].…”

Section: Relationship Between Age and Climate Sensitivity Of Radial Gmentioning

confidence: 99%

Relationships between Tree Age and Climate Sensitivity of Radial Growth in Different Drought Conditions of Qilian Mountains, Northwestern China

Zhang

Jiang

Zhao

et al. 2018

Forests

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Abstract:The response of radial growth to climate and the climate sensitivity of tree growth at different ages in different drought conditions are essential for predicting forest dynamics and making correct forest management policies. In this study, we analyzed the growth responsiveness of Picea crassifolia Kom. to climate and explored the relationship between age and climate sensitivity of radial growth at the individual tree scale in the wetter eastern area and drier western area of the Qilian Mountains. Pearson correlation coefficients were calculated between the chronology of each tree and climatic factors to examine the climate-growth relationships. Linear fitting, quadratic polynomial fitting and exponential fitting were used to test the relationships between age and mean sensitivity, standard deviation and radial growth's response to climate. Trees in the wetter eastern area showed a weaker response to climate than those in the drier western area and were significantly correlated with precipitation and mean temperature in the previous and current mid-late summer. Trees in the drier western area were mainly limited by precipitation of the previous August, the current May and June, as well as limited by temperature in the previous and current early-middle summer. In the wetter area, the younger trees were more sensitive to both precipitation and temperature than the older trees. In the drier area, younger/older trees showed a stronger sensitivity to precipitation in the current August and September/May, whereas trees 120-140 years old showed a stronger correlation with temperature factors in the summer. It was determined that mature trees in the drier area were more strongly influenced by the climate, especially in the context of increasing temperature. These trees should be paid special attention in forest management.

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Age-independent climate-growth response of Chinese pine (Pinus tabulaeformis Carrière) in North China

Sun

Liu

2014

Trees

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Individual and time-varying tree-ring growth to climate sensitivity of Pinus tabuliformis Carr. and Sabina przewalskii Kom. in the eastern Qilian Mountains, China

Cited by 17 publications

References 32 publications

Variations in leaf traits of Juniperus przewalskii from an extremely arid and cold environment

Variations in leaf traits of Juniperus przewalskii from an extremely arid and cold environment

Relationships between Tree Age and Climate Sensitivity of Radial Growth in Different Drought Conditions of Qilian Mountains, Northwestern China

Age-independent climate-growth response of Chinese pine (Pinus tabulaeformis Carrière) in North China

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