Antagonistic and additive interactions dominate the responses of belowground carbon-cycling processes to nitrogen and phosphorus additions

Jiang, Jun; Wang, Ying‐Ping; Liu, Fengcai; Du, Yongsheng; Zhuang, Wei; Chang, Zhongbing; Yu, Mengxiao

doi:10.1016/j.soilbio.2021.108216

Cited by 30 publications

(10 citation statements)

References 72 publications

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“…Black lines represent the mean responses with 95% CI in the shade, and dashed lines represent the average lnRR of the tested C:N:P ratios. [Colour figure can be viewed at wileyonlinelibrary.com] not only affect soil respiration (Jiang et al, 2021) but also affect plant, soil, and microorganism C:N:P ratios. Also, our analysis indicates that the lack of P addition effects on N:P and C:P ratios in certain studies is attributed to low application rates and short experimental duration.…”

Section: Variations In P Addition Effectsmentioning

confidence: 99%

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Phosphorus additions imbalance terrestrial ecosystem C:N:P stoichiometry

Sun

Wang

Chen

et al. 2022

Global Change Biology

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Carbon (C):nitrogen (N):phosphorus (P) stoichiometry in plants, soils, and microbial biomass influences productivity and nutrient cycling in terrestrial ecosystems. Anthropogenic inputs of P to ecosystems are increasing; however, our understanding of the impacts of P addition on terrestrial ecosystem C:N:P ratios remains elusive. By conducting a meta‐analysis with 1413 paired observations from 121 publications, we showed that P addition significantly decreased plant, soil, and microbial biomass N:P and C:P ratios, but had negligible effects on C:N ratios. The reductions in N:P and C:P ratios became more evident as the P application rates and experimental duration increased. The P addition effects on terrestrial ecosystem C:N:P stoichiometry did not vary with ecosystem types or climates. Moreover, the responses of N:P and C:P ratios in soil and microbial biomass were associated with the responses of soil pH and fungi:bacteria ratios. Additionally, P additions increased net primary productivity, microbial biomass, soil respiration, N mineralization, and N nitrification, but decreased ammonium and nitrate contents. Decreases in plant N:P and C:P ratios were both negatively correlated to net primary productivity and soil respiration, but positively correlated to ammonium and nitrate contents; microbial biomass, soil respiration, ammonium contents, and nitrate contents all increased with declining soil N:P and C:P ratios. Our findings highlight that P additions could imbalance C:N:P stoichiometry and potentially impact the terrestrial ecosystem functions.

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Section: Variations In P Addition Effectsmentioning

confidence: 99%

“…fertilizers are not volatile (Feng & Zhu, 2019), P additions remarkably affect various ecosystem functions, such as ecosystem C-cycling (Jiang et al, 2021), soil respiration (Liu et al, 2012), and ecosystem N-cycling (Wang et al, 2022).…”

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confidence: 99%

Phosphorus additions imbalance terrestrial ecosystem C:N:P stoichiometry

Sun

Wang

Chen

et al. 2022

Global Change Biology

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“…Nitrogen (N) and phosphorus (P) are soil nutrients limiting primary production and other processes of terrestrial ecosystems (e.g., Lebauer & Treseder, 2008 ; Fernandez‐Martinez et al., 2014 ; Hou et al., 2020 ; and; Jiang et al., 2021 ), and the limitation will likely intensify under future conditions (Penuelas et al., 2013 ; Zhang et al., 2014 ). This has far reaching implications for land carbon uptake (Goll et al., 2012 ; Zhang et al., 2014 ), allowable CO 2 emissions (Wang et al., 2015 ), and carbon‐climate feedback (Arora et al., 2020 ; Zhang et al., 2014 ).…”

Section: Introductionmentioning

confidence: 99%

Toward a Global Model for Soil Inorganic Phosphorus Dynamics: Dependence of Exchange Kinetics and Soil Bioavailability on Soil Physicochemical Properties

Wang

Huang

Augusto

et al. 2022

Global Biogeochemical Cycles

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The representation of phosphorus (P) cycling in global land models remains quite simplistic, particularly on soil inorganic phosphorus. For example, sorption and desorption remain unresolved and their dependence on soil physical and chemical properties is ignored. Empirical parameter values are usually based on expert knowledge or data from few sites with debatable global representativeness in most global land models. To overcome these issues, we compiled from data of inorganic soil P fractions and calculated the fraction of added P remaining in soil solution over time of 147 soil samples to optimize three parameters in a model of soil inorganic P dynamics. The calibrated model performed well (r2 > 0.7 for 122 soil samples). Model parameters vary by several orders of magnitude, and correlate with soil P fractions of different inorganic pools, soil organic carbon and oxalate extractable metal oxide concentrations among the soil samples. The modeled bioavailability of soil P depends on, not only, the desorption rates of labile and sorbed pool, inorganic phosphorus fractions, the slope of P sorbed against solution P concentration, but also on the ability of biological uptake to deplete solution P concentration and the time scale. The model together with the empirical relationships of model parameters on soil properties can be used to quantify bioavailability of soil inorganic P on various timescale especially when coupled within global land models.

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“…Nitrogen (N) and phosphorus (P) availability often constrain the growth and metabolism of plant and soil microorganisms in terrestrial ecosystems (Dijkstra et al, 2012 ; Yuan and Chen, 2015 ; Jiang et al, 2021 ). Supplies and inputs of N and P have been greatly affected by pre-industrial revolution and human activities (e.g., fossil combustion and excessive fertilizer applications) (Ma et al, 2016 ; Yan et al, 2022 ).…”

Section: Introductionmentioning

confidence: 99%

Soil properties rather than plant diversity mediate the response of soil bacterial community to N and P additions in an alpine meadow

et al. 2022

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The alpine meadow on the Qinghai-Tibetan Plateau, which is susceptible to global climate change and human activities, is subject to nutrient addition such as nitrogen (N) and phosphorus (P) to enhance soil available nutrients and ecosystem productivity. Soil bacterial community partly drivers the effects of nutrient additions on ecosystem processes, whereas the factors influencing N and P additions on bacterial community in alpine meadows are not well documented. We conducted a N and P addition experiment in an alpine meadow ecosystem on the Qinghai-Tibetan Plateau with four treatments: untreated control (CK), N addition (N), P addition (P), and NP addition (NP). We employed a high-throughput Illumina Miseq sequencing technology to investigate the response of soil bacterial community to short-term N and P additions. N and P additions decreased soil bacterial richness (OTU numbers and Chao 1 index), and P addition decreased soil bacterial diversity (Shannon and Simpson indices). N addition directly induced the change of soil NH4+−N, and decreased plant diversity. The N and P additions reduced soil bacterial community diversity, whose response was independent with plant diversity. Additionally, nutrient additions altered soil bacterial community composition, which were highly correlated with soil properties (i.e. pH, NH4+−N, and TP) as shown by RDA. Consistently, structural equation modeling results revealed that N addition indirectly acted on soil bacterial community through altering soil available nutrients and pH, while P addition indirectly affected bacterial community by increasing soil P availability. These findings imply that more attention should be paid to soil properties in regulating belowground biodiversity process in alpine meadows under future environmental change scenario.

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Antagonistic and additive interactions dominate the responses of belowground carbon-cycling processes to nitrogen and phosphorus additions

Cited by 30 publications

References 72 publications

Phosphorus additions imbalance terrestrial ecosystem C:N:P stoichiometry

Phosphorus additions imbalance terrestrial ecosystem C:N:P stoichiometry

Toward a Global Model for Soil Inorganic Phosphorus Dynamics: Dependence of Exchange Kinetics and Soil Bioavailability on Soil Physicochemical Properties

Soil properties rather than plant diversity mediate the response of soil bacterial community to N and P additions in an alpine meadow

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