Concentrations and resorption patterns of 13 nutrients in different plant functional types in the karst region of south-western China

Liu, Changcheng; Li, Hui; Guo, Ke; Wang, Shijie; Yang, Yan

doi:10.1093/aob/mcu005

Cited by 79 publications

(70 citation statements)

References 44 publications

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“…A recent study from vegetation on karst in China slightly above 26 • N reports surprisingly much higher P concentrations in leaves, and lower N/P values than those reported here for Puerto Rico [36]. Concentrations of the other elements are within the same range as those reported here ( Table 7).…”

Section: Comparison Between Humid and Dry Tropical Forests On Contrassupporting

confidence: 80%

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Substrate Chemistry and Rainfall Regime Regulate Elemental Composition of Tree Leaves in Karst Forests

Medina

Cuevas

Lugo

2017

Forests

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Forests on calcareous substrates constitute a large fraction of the vegetation in Puerto Rico. Plant growth on these substrates may be affected by nutrient deficiencies, mainly P and Fe, resulting from high pH and formation of insoluble compounds of these elements. The occurrence of these forests in humid and dry areas provides an opportunity to compare nutrient relations, water use efficiency, and N dynamics, using biogeochemical parameters. We selected sites under humid climate in the north, and dry climate in the southwest of Puerto Rico. Adult, healthy leaves of species with high importance values were collected at each site and analyzed for their elemental composition and the natural abundance of C and N isotopes. Calcium was the dominant cation in leaf tissues, explaining over 70% of the ash content variation, and Al and Ca concentration were positively correlated, excepting only two Al-accumulating species. Karst vegetation consistently showed high N/P ratios comparable to forests on P-poor soils. Dry karst sites had significantly higher δ 13 C and δ 15 N ratios. We conclude that forests on karst are mainly limited by P availability, and that mechanisms of nutrient uptake in the rhizosphere lead to linear correlations in the uptake of Ca and Al. Isotope ratios indicate higher water use efficiency, and predominant denitrification in dry karst forest sites.

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Section: Comparison Between Humid and Dry Tropical Forests On Contrassupporting

confidence: 80%

“…Concentrations of heavy metals (Fe and Mn) in the Liu et al study [36] were also about two times higher than in the present paper (2 vs. 0.7 mmol/kg). Data on Al in karst vegetation were not found in the available literature.…”

Section: Comparison Between Humid and Dry Tropical Forests On Contrascontrasting

confidence: 73%

Substrate Chemistry and Rainfall Regime Regulate Elemental Composition of Tree Leaves in Karst Forests

Medina

Cuevas

Lugo

2017

Forests

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“…; Liu et al . ) and that the efficiency of nutrient resorption decreases somewhat with increasing nutrient concentration in green leaves (Aerts ; Kobe, Lepczyk & Iyer ) and in the soils (Reed et al . ; Hayes et al .…”

Section: Introductionmentioning

confidence: 99%

Nutrient resorption is associated with leaf vein density and growth performance of dipterocarp tree species

Zhang

Chen

et al. 2015

Journal of Ecology

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Summary1. Nutrient resorption is important for the nutrient budget of plants, but little is known about which plant traits mediate nutrient resorption, how resorption efficiency is associated with other leaf traits and whether nutrient resorption has an impact on plant growth. 2. In this study, 17 dipterocarp tree species were compared in a common garden experiment. N and P resorption efficiencies were regressed against suites of traits associated with phloem transport capacity (i.e. leaf vein density; D vein ), leaf nutrient conservation traits (e.g. leaf mass per area; LMA) and species growth rate. 3. Across the dipterocarp species studied, N resorption efficiency (percentage N resorbed) was positively correlated with D vein and leaf thickness. N resorption efficiency was also correlated with D vein after considering phylogenetic effects. N resorption proficiency (N remaining in senesced leaves) was negatively correlated with D vein , LMA, leaf thickness and palisade and spongy mesophyll thickness. Senesced-leaf N concentration was still negatively correlated with LMA and leaf thickness after considering phylogenetic effects. 4. N resorption efficiency was positively correlated with both height and diameter growth rates. After considering phylogenetic effect, N resorption efficiency was marginally correlated with diameter growth rate. Green-leaf N concentration was positively correlated with height growth rate after considering phylogenetic effect. 5. P resorption efficiency and proficiency were not related to any of the leaf morphological and anatomical traits, or to species growth rates. 6. Synthesis. These results indicate that higher phloem transport capacity of the dipterocarp species is positively correlated with greater N resorption efficiency and that N resorption proficiency is closely linked with leaf nutrient conservation traits. Growth rates of the dipterocarps are more likely governed by photosynthetic rates associated with green-leaf N concentration than N resorption rates per se. Although P is generally deficient in tropical soils, it appears that N rather than P availability is the key limiting factor for the growth of the dipterocarp species.

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“…In many limestone regions of the world, including the widespread karst landscape in southwest China (Wang et al 2004), the supply of soil nutrients is strongly constrained (Liu et al 2014). However, soil microbial diversity improves with the developmental succession of the plant community in Karst areas (Zhu et al 2012).…”

Section: Introductionmentioning

confidence: 99%

“…Therefore, plant traits could be affected by fungal species, fungal composition and plant species. For instance, the nutritional uptake of plants greatly depends on plant functional types in Karst habitats (Liu et al 2014). One of the mycorrhizal functions is the facilitation of nutrient acquisition (Smith & Read 2010) (GD).…”

Section: Introductionmentioning

confidence: 99%

Arbuscular Mycorrhizal Fungal Composition Affects the Growth and Nutrient Acquisition of Two Plants from a Karst Area

He¹,

Jiang²,

Wang³

et al. 2017

JSM

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Concentrations and resorption patterns of 13 nutrients in different plant functional types in the karst region of south-western China

Abstract: The results emphasize the fact that nutrient resorption patterns strongly depend on element and plant functional type, which provides new insights into plant nutrient use strategies and nutrient cycling in karst ecosystems.

Cited by 79 publications

References 44 publications

Substrate Chemistry and Rainfall Regime Regulate Elemental Composition of Tree Leaves in Karst Forests

Substrate Chemistry and Rainfall Regime Regulate Elemental Composition of Tree Leaves in Karst Forests

Nutrient resorption is associated with leaf vein density and growth performance of dipterocarp tree species

Arbuscular Mycorrhizal Fungal Composition Affects the Growth and Nutrient Acquisition of Two Plants from a Karst Area

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