Imbalanced plant stoichiometry at contrasting geologic-derived phosphorus sites in subtropics: the role of microelements and plant functional group

Wen, Jiahao; Ji, Huawei; Sun, Ning; Tao, Huimin; Du, Baoming; Hui, Dafeng; Liu, Chunjiang

doi:10.1007/s11104-018-3728-0

Cited by 25 publications

(18 citation statements)

References 54 publications

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“…The spatial distribution of C:N in the studied area is relatively stable, and no significant difference was found among the three rocky desertification lands in different geomorphological locations, suggesting that the vegetation type and rocky desertification degree have little significant effect on the C:N ratio. This was in agreement with a previous result that the C:N ratio was relatively stable and was insignificantly affected by climate, although C and N concentrations had great spatial variability [38,39]. Previous studies found that soil C:P and N:P ratios decreased with increasing disturbance, because the loss of soil C and N pools was faster than the P pool.…”

Section: Spatial Pattern Of Eco-stoichiometric Characteristics Of C supporting

confidence: 93%

“…However, the P pool was not basically affected by the changes in the C and N pools, which resulted in the weak correlation between soil TP and SOC and TN. This indicates that P is mainly derived from the weathering release of soil minerals, rather than from the short-term biological cycle in this study [39]. Soil C:N, C:P, and N:P in the studied region were all lower than the average value of China, but the values of C:AvP and N:AvP were much higher than the average value of China (Table 1), which may be attributed to a high total P concentration but low AvP concentration in the karst soil [40].…”

Section: Spatial Pattern Of Eco-stoichiometric Characteristics Of C mentioning

confidence: 82%

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The Characteristics of Soil C, N, and P Stoichiometric Ratios as Affected by Geological Background in a Karst Graben Area, Southwest China

Yang¹,

Zhang

Zhu³

et al. 2019

Forests

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Understanding ecological stoichiometric characteristics of soil nutrient elements is crucial to guide ecological restoration and agricultural cultivation in karst rocky desertification region, but the information about the effect of the geological background on ecological stoichiometric ratios remains unknown. Soils from different landforms, including a basin, slope, and plateau, were sampled to investigate the spatial variance of the ecological stoichiometric characteristics of soil carbon (C), nitrogen (N), and phosphorus (P) under different rocky desertification grades (LRD: light rocky desertification; MRD: moderate rocky desertification; and SRD: severe rocky desertification) in a karst graben basin of Southwest China. Soil C:N ratio was not significantly influenced by rocky desertification grade, which was at a relatively stable level in the same landform, but soil C:P and N:P ratios increased with increasing rocky desertification grade. This change was consistent with increased soil organic carbon (SOC) and total nitrogen (TN) concentrations in the same geomorphic location along with the intensification of rocky desertification, but soil P concentration remained at a relatively stable level, indicating that P may be the limiting macronutrient for plant growth during vegetation restoration in a karst graben area. The soil C:N ratio of slope land was larger than that of the basin and plateau, while the soil C:P ratio and N:P ratio of the slope and plateau were significantly larger than that of the basin. The correlations between pH and C, N, and P stoichiometry decreased significantly when Ca was used as a control variable. In sharp contrast, the correlations between Ca and C, N, and P stoichiometry were highly significant no matter whether pH was used as a control variable, suggesting the important role of Ca in soil C, N, and P stoichiometry in karst graben basins.

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Section: Spatial Pattern Of Eco-stoichiometric Characteristics Of C supporting

confidence: 93%

Section: Spatial Pattern Of Eco-stoichiometric Characteristics Of C mentioning

confidence: 82%

The Characteristics of Soil C, N, and P Stoichiometric Ratios as Affected by Geological Background in a Karst Graben Area, Southwest China

Yang¹,

Zhang

Zhu³

et al. 2019

Forests

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“…The level of P 2 O 5 in the phosphate rocks is signi cantly higher over the non-phosphate rocks. The total P concentration are 2.23 mg g -1 at P-rich sites and 0.3 mg g -1 at Pde cient sites , while the available P concentration are 0.045 mg g -1 at P-rich sites and 0.007 mg/g at Pde cient sites [8].…”

Section: Study Sitesmentioning

confidence: 92%

“…The chemical compositions of the soil from P-rich sites at Kunming and P-de cient sites at Mouding have been revealed by Wen et al [8] and Ji et al [80]. The pH of the soils at the two sites was ~5.22, with the soil C, N, P, K, Mg, and Mn concentration being much higher at the P-rich sites, in contrast to the Pde cient sites [16,80].…”

Section: Study Sitesmentioning

confidence: 97%

“…However, there are often some P-rich ores mixed in the P-de cient sites in some subtropical areas of China, which leads to signi cant changes in P and other elements across the region [3,4]. These contrasting-P sites generally give rise to plants with different stoichiometry characteristics [3,[5][6][7][8], which can affect the metabolism and formation of compounds within cells and organisms [9,10]. The metabolome represents all of the small molecules in organisms at a given moment [11,12].…”

Section: Introductionmentioning

confidence: 99%

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Roles of metabolic regulation in developing Quercus variabilis acorns at contrasting geologically-derived phosphorus sites in subtropical China

Yuan

Sun

et al. 2020

Preprint

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BackgroundPhosphorus (P) -rich soils develop in phosphorite residing areas while P-deficient soils are ubiquitous in subtropical regions. Little has been reported that how metabolites participate in the seed development and the processes involved in their coping with contrasting-nutrient environments.ResultsHere we quantified the metabolites of Quercus variabilis acorns in early (July), middle (August), and late (September) development stages at geologically-derived contrasting-P sites in subtropical China using Gas chromatography-mass spectrometry (GC-MS). The primary metabolic pathways included sugar metabolism, the TCA cycle, and amino acid metabolism. Most metabolites (especially C- and N-containing metabolites) increased and then decreased from July to September. Acorns between the two sites were significantly discriminated at the three stages, respectively, by metabolites (predominantly sugars and organic acids). Concentrations of P, orthophosphoric acid and most sugars were higher; erythrose was lower in late-stage acorns at P-rich sites than those at P-deficient sites. No significant differences existed in the size and dry mass of individual acorns between oak populations at the two sites. ConclusionsOak acorns at the two sites formed distinct metabolic phenotypes related to their distinct geologically-derived soil conditions, and the late-stage acorns tended to increase P-use-efficiency in the material synthesis process at P-deficient sites, relative to those at P-rich sites.

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Biogeochemical niche conservatism relates to plant species diversification and life form evolution in a subtropical montane evergreen broad‐leaved forest

Bai

Xue-wen

et al. 2022

Ecology and Evolution

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The evolutionary mechanisms underlying the biogeochemical niche conservatism in forests remain incompletely understood. Here we aimed to determine how the strengths of biogeochemical niche conservatism vary among elements and between life forms. We measured leaf concentrations of basal elements (C, N, P, K, Ca, and Mg) in a wide range of life forms in a subtropical montane evergreen broad‐leaved forest. We found that differences in life forms such as evergreen/deciduous woody species and herbaceous/woody species significantly affected leaf elemental composition. The significant phylogenetic signal was present in leaf C, N, K, and Mg concentrations but absent in leaf P and Ca concentrations in all species. These contrasting strengths of biogeochemical niche conservatism were best generated by Ornstein–Uhlenbeck processes toward optima. Woody species were evolutionarily selected to show lower optimal leaf N, P, and K concentrations and higher optimal leaf C, Ca, and Mg concentrations than herbaceous species. The number of optima varied from the least in leaf C concentration to the most in leaf Ca concentration, suggesting the stronger convergent evolution of leaf Ca concentration. The positions of optima toward the tips were more selected in woody species, suggesting the more frequency of species‐specific adaptations in woody species. The positions of optima were also selected at the nodes towards the species groupings from certain life forms (e.g., the group of 12 Polypodiales ferns in leaf Ca evolution and the group of three evergreen Theaceae species in leaf P evolution) that were converged to present similar leaf elemental composition. During the evolution of biogeochemical niche, strong correlations were found among leaf C, N, P, and K concentrations and between leaf Ca and Mg concentrations. In conclusion, the strengths of biogeochemical niche conservatism can vary among elements and between life forms due to the different tempo and mode of Ornstein–Uhlenbeck processes.

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Imbalanced plant stoichiometry at contrasting geologic-derived phosphorus sites in subtropics: the role of microelements and plant functional group

Cited by 25 publications

References 54 publications

The Characteristics of Soil C, N, and P Stoichiometric Ratios as Affected by Geological Background in a Karst Graben Area, Southwest China

The Characteristics of Soil C, N, and P Stoichiometric Ratios as Affected by Geological Background in a Karst Graben Area, Southwest China

Roles of metabolic regulation in developing Quercus variabilis acorns at contrasting geologically-derived phosphorus sites in subtropical China

Biogeochemical niche conservatism relates to plant species diversification and life form evolution in a subtropical montane evergreen broad‐leaved forest

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