Genetic variation in branchlet carbon and nitrogen isotope composition and nutrient concentration of 11-year-old hoop pine families in relation to tree growth in subtropical Australia

Xu, Zhihong; Prasolova, Nina; Lundkvist, Kenneth; Beadle, C. L.; Leaman, Trevor

doi:10.1016/s0378-1127(03)00304-9

Cited by 42 publications

(31 citation statements)

References 67 publications

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“…Age-related relationship among d 13 C, nutrient contents and specific leaf area We detected that d 13 C strongly correlated with N M and N A along an altitudinal gradient, which corroborated with the general pattern previously reported for other species (Flanagan and Johnsen 1995;Xu et al 2003). This result also highlights the potential of using N contents of leaves as a useful trait for indirectly selecting Q. aquifolioides with improved WUE, when potential factors can be well controlled in common garden assays.…”

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confidence: 89%

Age-related nutrient content and carbon isotope composition in the leaves and branches of Quercus aquifolioides along an altitudinal gradient

Duan

et al. 2009

Trees

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Quercus aquifolioides Rehder & E.H. Wilson, an evergreen alpine and subalpine species, occupies a wide range of habitats in the Wolong Nature Reserve, southwestern China. We measured age-related carbon (C) and nutrient (N, P, K, Mg and Ca) contents, C/N, carbon isotope composition (d 13 C) and specific leaf area (SLA) in the leaves and branches of Q. aquifolioides trees along an altitudinal gradient ranging from 2,000 to 3,600 m. The results showed that both age and altitude significantly affected the morphological and physiological properties of Q. aquifolioides. Young tissues possessed higher contents of N, P, K and Mg, lower Ca contents, both on a dry mass basis (subscript ''M'') and on a unit area basis (subscript ''A''), and lower C/N and d13 C values than did the old ones. The levels of N M and d 13 C increased with increasing altitude above 2,800 m, but decreased with increasing altitude below 2,800 m. In contrast, C/N and SLA showed opposite patterns, and other nutrient contents, including P M , K M , Ca M and Mg M , exhibited irregular changes with elevation. On the other hand, d13 C was positively correlated with N M in both leaves and branches, and negatively correlated with SLA in leaves along the altitudinal gradient. Our results also showed that both the Mg M level of leaves and the Ca M level of branches, besides the functional correlations between the N M level and the structure of leaves, are responsible for or accompanied by variation in d 13 C. In addition, d 13 C was negatively correlated with C/N in both leaves and branches along an altitudinal gradient. It follows that high-altitude plants achieve higher water use efficiency (WUE) at the expense of decreasing nitrogen use efficiency (NUE, derived from C/N), whereas plants at 2,800 m can maintain relatively higher NUE but lower WUE. These characteristics probably reflect the physiological potential of Q. aquifolioides for vigorous growth and metabolism at the optimum altitude (around 2,800 m). With increasing distance from the optimum altitude, NUE decreases. The observed intraspecific variation in the trade-off between WUE and NUE may partially explain the altitudinal distribution of Q. aquifolioides in relation to moisture and nutrient availability.

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confidence: 89%

Age-related nutrient content and carbon isotope composition in the leaves and branches of Quercus aquifolioides along an altitudinal gradient

Duan

et al. 2009

Trees

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“…Plant WUE and growth can be increased by elevated [CO 2 ] and N availability (Oren et al 2001;Prasolova and Xu 2003;Xu et al 2003;Prasolova et al 2005;Long et al 2006;Reich et al 2006;Hyvönen et al 2007;Magnani et al 2007;Huang et al 2008d, e, f), at least in the short term, but their longterm levels may be counteracted by age-related biologically declining trends (Duquesnay et al 1998;Penninckx et al 1999) and progressive nutrient limitations (Oren et al 2001;Drouet et al 2005a, b;Long et al 2006;Reich et al 2006;Hyvönen et al 2007). The mobility of elements (Penninckx et al 1999;Elhani et al 2003;Drouet et al 2005a, b;e.g., N) between adjacent tree rings and differences in stable isotope composition between components (Duquesnay et al 1998;Elhani et al 2003;Saurer et al 2004;Treydte et al 2006) of tree ring material (e.g., cellulose against whole tree ring material) can also pose problems in interpreting these ring data, with increasing margins of error.…”

Section: Tree Ring Techniquementioning

confidence: 99%

Trends and challenges in soil research 2009: linking global climate change to local long-term forest productivity

Chen

et al. 2009

J Soils Sediments

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“…Controls on soil δ 15 N values are complex and include the quantity and quality of SOM inputs, soil N sources, and isotopic fractionations resulting from N transformations (Nadelhoffer and Fry, 1988;Piccolo et al, 1994;Xu et al, 2003). Despite this complexity in the interpretation of δ 15 N values, there are some generalities.…”

Section: Land Use and Management-induced Changes Within The Tested Fomentioning

confidence: 99%

Using light fraction and macroaggregate associated organic matters as early indicators for management-induced changes in soil chemical and biological properties in adjacent native and plantation forests of subtropical Australia

Chen

et al. 2008

Geoderma

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Land use and management Forest Soil chemical and biological processes Soil physical structure causes differential accessibility of soil organic matter (SOM), including carbon (C) and nitrogen (N) pools, to decomposer organisms and is an important determinant of SOM storage. Physical fractionation method of SOM in conjunction with elemental as well as isotopic analyses (C, N, δ 13 C, δ 15 N) of those soil fractions are used in this study to determine the land use and management-induced changes of SOM and associated processes in three adjacent sites of native forest (NF), first (1R) and second rotation (2R, including tree planting row (2R-T) and windrow of harvest residues (2R-W)) of hoop pine plantations in southeast Queensland, Australia. The results suggest that there is a greater accumulation of C and N in the light fraction (LF) of NF site than that of plantation sites (1R and 2R), and the C and N losses following conversion from mixed species NF to the single-species plantation are attributed to the reduction in C and N stocks for all physical fractions separated by wet sieving. In contrast, the C and N losses induced by the rotation practices (e.g., between 1R and 2R-T) are attributed to the C and N decreases in the LF and macroaggregates (250-2000 µm) only. The C and N increases upon the residue management (e.g., between 2R-W and 2R-T) are primarily attributed to the C and N increases in the LF and macroaggregates as well. Coupled with 30 soil chemical and biological parameters obtained in our previous studies, further principal component and multivariable regression analyses were conducted and the results showed that both the LF and macroaggregates were highly related to the status of C and N pools, the processes of N transformation and soil respiration, and the diversity of microbial communities, and thus could serve as diagnostic SOM fractions responsible for the changes of soil properties and processes within the tested ecosystem induced by the land uses and management practices. Knowledge of the interactive relationships between aggregate classes within SOM and soil chemical and biological processes in this study represents a further step towards diagnostically measuring and understanding important soil C and N processes in response to the land use and management changes in the soil ecosystems such as forests in subtropical Australia.

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Genetic variation in branchlet carbon and nitrogen isotope composition and nutrient concentration of 11-year-old hoop pine families in relation to tree growth in subtropical Australia

Cited by 42 publications

References 67 publications

Age-related nutrient content and carbon isotope composition in the leaves and branches of Quercus aquifolioides along an altitudinal gradient

Age-related nutrient content and carbon isotope composition in the leaves and branches of Quercus aquifolioides along an altitudinal gradient

Trends and challenges in soil research 2009: linking global climate change to local long-term forest productivity

Using light fraction and macroaggregate associated organic matters as early indicators for management-induced changes in soil chemical and biological properties in adjacent native and plantation forests of subtropical Australia

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