Soil-nutrient availability modifies the response of young pioneer and late successional trees to elevated carbon dioxide in a Brazilian tropical environment

Oliveira, Eduardo Augusto Dias de; Approbato, Andressa Uehara; Legracie, Jose Renato; Martínez, Carlos A.

doi:10.1016/j.envexpbot.2011.11.003

Cited by 24 publications

(21 citation statements)

References 64 publications

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“…In addition, naturally established seedlings of five species increased relative growth rate of height in response to K addition and with N and P in combination, whereas relative growth rate of leaf count only trended 8.5 % higher with K addition . Finally, two studies now demonstrate that combined nutrient additions enhanced the growth response to elevated atmospheric CO 2 (Carswell et al 2000;de Oliveira et al 2012), offering support for nutrient limitation of the concentration-carbon feedback. Thus it is clear from the available data that the growth responses of field grown tropical tree seedlings to nutrient addition depend on light availability, the element that limits growth and local soil conditions.…”

Section: Nutrient Limitation Of Whole Plant Processesmentioning

confidence: 87%

“…On a denuded soil substrate following a landslide in montane forest in Puerto Rico, A max of Cecropia schreberiana (pioneer tree) increased with N addition, but Palicourea riparia (gap and understory shrub), and Manilkara bidentata (nonpioneer canopy tree) were unaffected (Fetcher et al 1996). Further examples of nutrient-driven stimulation of leaf-level physiology from pot studies or experimental common gardens include increases in A max in Cedrela odorata, Croton urucurana and Cariniana legalis in response to combined N-P-K-Ca treatments (Carswell et al 2000;de Oliveira et al 2012), an increase in A max in Ficus insipida in response to a combined N-P-K treatment (Cernusak et al 2007), and increased A max in response to N addition in one light-demanding tree species and one shade-tolerant liana species, but not in two light-demanding liana species (Cai et al 2008). Thus, nutrient limitation of photosynthetic capacity in tropical trees is not uncommon, but the nature of limitation depends on the element in question, its availability in the environment and the successional status of the species.…”

Section: Leaves and Roots: Nutrient Limitation Of Resourceabsorbing Omentioning

confidence: 99%

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Nutrient limitation of eco-physiological processes in tropical trees

Santiago

2015

Trees

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Key Message Tropical forests play a disproportionately large role in the global climate system, yet the extent to which nutrients limit the potential for tropical trees to increase carbon gain as atmospheric carbon dioxide rises is unknown. Abstract This review focuses on what is known about tropical tree responses to experimental nutrient addition and how such information is critical for developing a more complete picture of the ability of tropical forest to respond to a changing world. Most of our knowledge of nutrient limitation of eco-physiological processes in tropical trees is derived from stand-scale nutrient addition experiments, in which physiological or growth responses signify limitation by that element. Our knowledge is further supplemented by fertilization studies of individual plants in pots. There is emerging evidence that fine root biomass decreases and maximum photosynthetic rates, water transport capacity and plant growth in tropical trees increase with nutrient addition, but the magnitude of response depends upon the successional status of the species, the size of the individual, light availability and the element in question. The sheer variation in responses of tropical trees to nutrient addition calls for a more complete evaluation across tropical environments.

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Section: Nutrient Limitation Of Whole Plant Processesmentioning

confidence: 87%

Section: Leaves and Roots: Nutrient Limitation Of Resourceabsorbing Omentioning

confidence: 99%

Nutrient limitation of eco-physiological processes in tropical trees

Santiago

2015

Trees

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“…The degree of increases in SLA by elevated CO 2 varies depending on the functional group and environment (Ainsworth and Rogers 2007). de Oliveira et al (2012) found that under N-rich conditions, elevated CO 2 increases the leaf area. g s value is strongly affected by leaf anatomythat may change along with SLA (Kogami et al 2001).…”

Section: Discussionmentioning

confidence: 99%

“…A net is generally positively correlated with foliar N, which is a major component of photosynthetic-related enzymes, such as Rubisco (Cao et al 2007;Han et al 2011). N application and elevated CO 2 have synergistic effects on photosynthesis (Makoto and Koike 2007;Granath et al 2009;de Oliveira et al 2012). However, some studies have found that a low N supply can decrease or eliminate the positive Table 2 Statistical significance of single and interactive effects of population, CO 2 , and N application on physiological and biochemical parameters based on a three-way ANOVA effect of elevated CO 2 on photosynthesis (Murray et al 2000;Zhao et al 2011).…”

Section: Discussionmentioning

confidence: 99%

Physiological responses of Abies faxoniana populations from different elevations to increased CO2 and N application

Dong

Duan

et al. 2014

Acta Physiol Plant

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The altitude-related responses to the increased application of CO 2 , N, and their combination were investigated in two Abies faxoniana populations, which originated from a subalpine coniferous forest at elevations of 2,580 and 3,200 m using closed-top chambers. The two contrasting populations were subjected to two CO 2 regimes (350 and 700 lmol mol -1 ) and two N levels (0 and 5 g N m -2 year -1 ). Their net photosynthetic rate, nonstructural carbohydrate concentration, and photosynthetic N use efficiency (PNUE) increased under elevated CO 2 . However, the increases detected in the high-elevation (HE) population were significantly greater than those found in the low-elevation (LE) population. Under elevated CO 2 and N application, the maximal carboxylation rate (V cmax ) increased in HE population, whereas no effects were found on V cmax in LE population. The C to N ratio decreased under N application in both populations. N application also induced the HE population to show greater increases in free amino acids, soluble proteins, N concentration, and PNUE than LE population. These results suggested that the population from HE was more sensitive to elevated CO 2 and (or) N application than LE population. Results of this study provided valuable knowledge for predicting forest development under increased atmospheric CO 2 concentration and (or) N deposition.

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“…There are just a few ecophysiological studies in the Genus Croton. For example, Dias de Oliveira et al (2012) and Duarte et al (2005) studied Croton urucurana Baillon and Croton compressus Lam. in Brazil, respectively.…”

Section: Introductionmentioning

confidence: 99%

Morphological and physiological responses of Galapagos endemic tree Croton scouleri to site conditions varying through its altitudinal range

Castillo¹,

Rubio-Casal²,

Figueroa³

et al. 2012

Dendrobiology

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Galapagos is a natural laboratory offering a great opportunity to study plants functional traits. This study characterises morphological and ecophysiological responses of Croton scouleri, an endemic tree that habits from humid and upper elevations to semiarid lowlands, throughout an altitudinal gradient and in a manipulative experiment. Croton scouleri trees were gradually smaller with less total leaf area due to a gradual reduction in mean leaf size, and they folded their leaves at lower elevations. These results were also recorded after cutting every deep root. Two physiological traits that allowed Croton scouleri to avoid damages to the photosynthetic apparatus were detected between 30 and 150 m a.s.l. Lower variable fluorescence (F v ) and basal fluorescence (F 0 ) keeping constant maximum photochemical efficiency of PSII (F v /F m ) denoted a drop in chlorophyll concentration. Concomitantly, the recorded increase in the Quantum efficiency of PSII ( PSII ) with similar F v /F m means that Croton scouleri could be using cyclic electron transport as photoprotective mechanism. On the other hand, a deep root system to reach the water table allowed Croton scouleri to behave as a drought-avoider, which was reflected in: (1) unvarying water status Leaf Water Content and Relative Water Content were always higher than 69 and 58%, respectively; (2) stable and low photoinhibition levels; and (3) unvarying leaf area index. However, Croton scouleri was not able to avoid drought at altitudes lower 30 m a.s.l. where similar responses to those recorded after root cutting were recorded.

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Soil-nutrient availability modifies the response of young pioneer and late successional trees to elevated carbon dioxide in a Brazilian tropical environment

Cited by 24 publications

References 64 publications

Nutrient limitation of eco-physiological processes in tropical trees

Nutrient limitation of eco-physiological processes in tropical trees

Physiological responses of Abies faxoniana populations from different elevations to increased CO2 and N application

Morphological and physiological responses of Galapagos endemic tree Croton scouleri to site conditions varying through its altitudinal range

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