Interactive effects of nitrogen and phosphorus additions on plant growth vary with ecosystem type

Jiang, Jun; Wang, Ying‐Ping; Yang, Yanhua; Yu, Mengxiao; Wang, Chen; Yan, Junhua

doi:10.1007/s11104-019-04119-5

Cited by 70 publications

(49 citation statements)

References 63 publications

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“…The present study demonstrated that leaf N and P were highly positively correlated, which is in agreement with previous studies (Castellanos et al, 2018;Guo et al, 2017;Güsewell, 2004;He et al, 2008;Wang et al, 2015). While a negative correlation was found between leaf N:P and P (Fig 3, Fig 4) in overall and different functional groups of legumes, which have been testified that the increase of leaf P lead to the enhancement of leaf N:P (Jiang et al, 2019). The finding of relationship between leaf N:P and N was contrary with previous conclusion that leaf N:P increase generally with the enhancement of leaf N (Pan et al, 2015;Wang et al, 2015).…”

Section: Effect Of Functional Groups On Leaf N P and N:p Of Legumessupporting

confidence: 93%

“…However, our finding is accord with legume species reported in different ecosystems or biomes with 25.63, 26.7, 35.8 and 28.2 mg g -1 , respectively (Castellanos et al, 2018;Guo et al, 2017;He et al, 2006b;Wright et al, 2004). The reasons of higher leaf N in legumes than non-legumes may be caused by improving N supply in legumes because N addition enhanced leaf N (Jiang et al, 2019).…”

Section: Patterns Of Leaf N P and N:p Across All Legumessupporting

confidence: 90%

“…The leaf P of legumes was 2.38 mg g -1 for woody legumes in Southeast China (Wu et al, 2012), 1.9 mg g -1 in Chinese grassland biomes (He et al, 2008), 1.45 in the Sonoran Desert (Castellanos et al, 2018). The low leaf P could be related with N nutrient improvement because N addition decreased leaf P (Jiang et al, 2019). The ratio (21.94) of N and P in this study (Table 1) is higher than nonlegumes, which have been confirmed (Castellanos et al, 2018;Guo et al, 2017;He et al, 2008).…”

Section: Patterns Of Leaf N P and N:p Across All Legumesmentioning

confidence: 95%

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Variation in Leaf Nitrogen and Phosphorus Stoichiometry in Different Functional Groups of Legumes

Shi

et al. 2020

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The legume is notable owing to their symbiotic nitrogen (N) fixing ability. Usually, higher leaf N concentration and N to phosphorus (P) ratio (N:P) in legumes than non-legumes. However, the variations of leaf N, P and N:P and their relationship had been hardly studied based on functional groups. In this study, we studied the leaf N, P and N:P and their relationship among different functional groups. The results showed that the average values of leaf N, P and N:P ratios for all legumes were 27.33 mg g-1, 1.27 mg g-1 and 21.94, respectively. Leaf N (36.96 mg g-1) and P (2.15 mg g-1) of herbaceous legumes are significantly higher than N (24.97 mg g-1) and P (1.18 mg g-1) in woody plants, respectively. Moreover, leaf N, P and N:P of shrub markedly higher than them in tree. Leaf N and P are always higher in deciduous than evergreen legumes. A negative correlation was found between leaf N:P and P in overall and different functional groups of legumes.

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Section: Effect Of Functional Groups On Leaf N P and N:p Of Legumessupporting

confidence: 93%

Section: Patterns Of Leaf N P and N:p Across All Legumessupporting

confidence: 90%

Section: Patterns Of Leaf N P and N:p Across All Legumesmentioning

confidence: 95%

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Variation in Leaf Nitrogen and Phosphorus Stoichiometry in Different Functional Groups of Legumes

Shi

et al. 2020

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“…A random effects metanalytic model was used to compute and compare RR ++ (Liu, Wang, et al, 2016; Zhou et al., 2018) where individual studies are weighted using the following equation:

w = \frac{1}{{normalV}_{RR} + τ^{2}},

where

τ^{2}

is the between‐study variance which is estimated using the REML approach (Veroniki et al., 2016). The reason for selecting random effects model is that the main assumptions are more likely to be satisfied when dealing with ecological data synthesis (Jiang et al., 2019; Yue et al., 2017).…”

Section: Methodsmentioning

confidence: 99%

The response of soil respiration to precipitation change is asymmetric and differs between grasslands and forests

Wang

et al. 2020

Global Change Biology

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Intensification of the Earth's hydrological cycle amplifies the interannual variability of precipitation, which will significantly impact the terrestrial carbon (C) cycle. However, it is still unknown whether previously observed relationship between soil respiration (Rs) and precipitation remains applicable under extreme precipitation change. By analyzing the observations from a much larger dataset of field experiments (248 published papers including 151 grassland studies and 97 forest studies) across a wider range of precipitation manipulation than previous studies, we found that the relationship of Rs response with precipitation change was highly nonlinear or asymmetric, and differed significantly between grasslands and forests, between moderate and extreme precipitation changes. Response of Rs to precipitation change was negatively asymmetric (concave‐down) in grasslands, and double‐asymmetric in forests with a positive asymmetry (concave‐up) under moderate precipitation changes and a negative asymmetry (concave‐down) under extreme precipitation changes. In grasslands, the negative asymmetry in Rs response was attributed to the higher sensitivities of soil moisture, microbial and root activities to decreased precipitation (DPPT) than to increased precipitation (IPPT). In forests, the positive asymmetry was predominantly driven by the significant increase in microbial respiration under moderate IPPT, while the negative asymmetry was caused by the reductions in root biomass and respiration under extreme DPPT. The different asymmetric responses of Rs between grasslands and forests will greatly improve our ability to forecast the C cycle consequences of increased precipitation variability. Specifically, the negative asymmetry of Rs response under extreme precipitation change suggests that the soil C efflux will decrease across grasslands and forests under future precipitation regime with more wet and dry extremes.

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“…Separate high N treatment can increase the available P in the soil and diminish the stress induced by P deficiency in Chinese fir, which affects the distribution of P absorbed by plants, resulting in changes in the C, N, and P contents in leaves [59]. Under prolonged treatment, separate N addition accelerated the N absorption, and separate P addition improved the absorption of N and P. Several reports concluded that the C:N:P ratios in plant leaves can decouple under increasing nutrient enrichment [22,60,61]. Our results might suggest that plant stoichiometry becomes more complex under the N + P combination treatment.…”

Section: Seasonal Response Of Ecological Stoichiometry Under N and P mentioning

confidence: 99%

Photosynthesis, Ecological Stoichiometry, and Non-Structural Carbohydrate Response to Simulated Nitrogen Deposition and Phosphorus Addition in Chinese Fir Forests

Wang

et al. 2019

Forests

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Phosphorus (P) deficiency in soil affects plant growth and primary production. Accelerated nitrogen (N) deposition can cause ecological carbon:nitrogen:phosphorus (C:N:P) stoichiometry imbalance and increase the degree of relative P deficiency in the soil. However, it remains unclear how N deposition affects P uptake and C:N:P stoichiometry in coniferous timber forests, and whether P addition diminishes the effect of N-induced P limitation on plant growth. From January 2017 to April 2018, we investigated the effects of nine different N and P addition treatments on 10-year old trees of Chinese fir, Cunninghamia lanceolata (Lamb.) Hook. Our results demonstrated that N and P additions at a high concentration could improve the photosynthetic capacity in Chinese fir by increasing the chlorophyll content and stimulating the photosynthesis activity. The C:N:P stoichiometry varied with the season under different N and P addition treatments, indicating that N addition at a moderate concentration could diminish the effect of the P limitation on the growth of Chinese fir. The soluble sugar content in the leaves displayed more stable seasonal variations, compared with those of starch. However, the non-structural carbohydrate (NSC) content in the leaves did not vary with the season under both P and N addition treatment. The data suggested that N and P combination treatment at moderate concentrations promoted carbon assimilation by accelerating the photosynthetic rate. Thus, our results provide new insights into the adaptation mechanisms of coniferous timber forest ecosystems to the effects of N deposition under P deficiency and can help to estimate the ecological effects of environmental changes linked to human management practices.

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Interactive effects of nitrogen and phosphorus additions on plant growth vary with ecosystem type

Cited by 70 publications

References 63 publications

Variation in Leaf Nitrogen and Phosphorus Stoichiometry in Different Functional Groups of Legumes

Variation in Leaf Nitrogen and Phosphorus Stoichiometry in Different Functional Groups of Legumes

The response of soil respiration to precipitation change is asymmetric and differs between grasslands and forests

Photosynthesis, Ecological Stoichiometry, and Non-Structural Carbohydrate Response to Simulated Nitrogen Deposition and Phosphorus Addition in Chinese Fir Forests

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