Response of microbial diversity to C:N:P stoichiometry in fine root and microbial biomass following afforestation

Ren, Chao; Chen, Ji; Deng, Jian; Zhao, Fazhu; Han, Xinhui; Yang, Gaihe; Tong, Xiaogang; Feng, Yongzhong; Shelton, Shelby; Ren, Guangxin

doi:10.1007/s00374-017-1197-x

Cited by 130 publications

(66 citation statements)

References 56 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…While mass‐specific enzymes activity was directly affected by soil N, microbial biomass N:P was indirectly driven by a decrease in plant LDMC in N‐rich soil. This plant trait underpins litter decomposability (Fortunel et al, ; Quested et al, ), which suggests an effect of litter quality, and potentially of associated root traits (De Vries & Bardgett, ; Legay et al, ; Ren et al, ) on the stoichiometry of soil microorganisms (Fanin & Bertrand, ; Fanin et al, ). Litter P concentration was highly negatively related with LDMC in our study (Figure c) and might also have played a role in the effect of plant traits on microbial biomass N:P ratio.…”

Section: Discussionmentioning

confidence: 99%

Using proxies of microbial community‐weighted means traits to explain the cascading effect of management intensity, soil and plant traits on ecosystem resilience in mountain grasslands

et al. 2020

View full text Add to dashboard Cite

1. Trait-based approaches provide a framework to understand the role of functional biodiversity on ecosystem functioning under global change. While plant traits have been reported as potential drivers of soil microbial community composition and resilience, studies directly assessing microbial traits are scarce, limiting our mechanistic understanding of ecosystem functioning.2. We used microbial biomass and enzyme stoichiometry, and mass-specific enzymes activity as proxies of microbial community-weighted mean (CWM) traits, to infer trade-offs in microbial strategies of resource use with cascading effects on ecosystem resilience. We simulated a drought event on intact plant-soil mesocosms extracted from mountain grasslands along a management intensity gradient.Ecosystem processes and properties related to nitrogen cycling were quantified before, during and after drought to characterize ecosystem resilience.3. Soil microbial CWM traits and ecosystem resilience to drought were strongly influenced by grassland type. Structural equation modelling revealed a cascading effect from management to ecosystem resilience through modifications in soil nutrients, and plant and microbial CWM traits. Overall, our results depict a shift from high investment in extracellular enzymes in nutrient-poor soils (oligotrophic strategy), to a copiotrophic strategy with low microbial biomass N:P and low investment in extracellular enzymes associated with exploitative plant traits in nutrient-rich soils.4. Microbial CWM traits responses to management intensity were highly related to ecosystem resilience. Microbial communities with a copiotrophic strategy had lower resistance but higher recovery to drought, while microbial communities with an oligotrophic strategy showed the opposite responses. The unexpected trade-off between plant and microbial resistance suggested that the lower resistance of copiotrophic microbial communities enabled plant resistance to drought. Synthesis.Grassland management has cascading effects on ecosystem resilience through its combined effects on soil nutrients and plant traits propagating to microbial traits and resilience. We suggest that intensification of permanent grassland management and associated increases in soil nutrient availability decreased | 877 Journal of Ecology PITON eT al. S U PP O RTI N G I N FO R M ATI O N Additional supporting information may be found online in the Supporting Information section. How to cite this article: Piton G, Legay N, Arnoldi C, Lavorel S, Clément J-C, Foulquier A. Using proxies of microbial community-weighted means traits to explain the cascading effect of management intensity, soil and plant traits on ecosystem resilience in mountain grasslands.

show abstract

Section: Discussionmentioning

confidence: 99%

Using proxies of microbial community‐weighted means traits to explain the cascading effect of management intensity, soil and plant traits on ecosystem resilience in mountain grasslands

et al. 2020

View full text Add to dashboard Cite

show abstract

“…Changes in N and/or P availability and associated shifts in N:P ratios drive changes in species competition and dominance in communities of terrestrial plants (Sardans, Rodà, & Penuelas, ; Zhang, Liu, et al, ), animals (Jochum et al, ), microbes (Delgado‐Baquerizo et al, ; Fanin, Fromin, Biatois, & Hättenschwiler, ; Ren et al, ; Shao et al, ; Zechmeister‐Bolstenstren et al, ), and plankton (Elser, Andersen, et al, ; Elser, Kyle, et al, ; Grosse, Burson, Stomp, Huisman, & Boschker, ; He, Li, Wei, & Tan, ; Moorthi et al, ; Plum, Husener, & Hillebrand, ). Changes in media (water or soil) N:P ratios affect the structure of terrestrial (Fanin et al, ; Scharler et al, ; Zechmeister‐Bolstenstren et al, ) and aquatic (Sitters, Atkinson, Guelzow, Kelly, & Sullivan, ) food webs, but associated impacts on community diversity are unclear.…”

Section: Impacts Of Shifts In the N:p Ratios Of Human Inputs On Organmentioning

confidence: 99%

“…Although most studies of urban and crop wastes and leachate loads to rivers and estuaries (83.3%) have found increasing N:P ratios associated with increasing N:P ratios from human inputs, other studies (13.7%) tended to find decreasing ratios in areas with high livestock densities (Arbuckle & Downing, 2001;Johnson, Heck, & Fourqurean, 2006; Figure 6; Table S1). Changes in N and/or P availability and associated shifts in N:P ratios drive changes in species competition and dominance in communities of terrestrial plants (Sardans, Rodà, & Penuelas, 2004;Zhang, Liu, et al, 2019), animals (Jochum et al, 2017), microbes Fanin, Fromin, Biatois, & Hättenschwiler, 2013;Ren et al, 2017;Shao et al, 2017;Zechmeister-Bolstenstren et al, 2015), and plankton (Elser, Andersen, et al, 2009;Grosse, Burson, Stomp, Huisman, & Boschker, 2017;He, Li, Wei, & Tan, 2013;Moorthi et al, 2017;Plum, Husener, & Hillebrand, 2015). Changes in media (water or soil) N:P ratios affect the structure of terrestrial (Fanin et al, 2013;Scharler et al, 2015;Zechmeister-Bolstenstren et al, 2015) and aquatic (Sitters, Atkinson, Guelzow, Kelly, & Sullivan, 2015) food webs, but associated impacts on community diversity are unclear.…”

Section: Cascading Effectsmentioning

confidence: 99%

“…For example, the typically negative relationships between N:P ratios and the diversities of zoo-and phytoplankton (He et al, 2013) are associated with the shortened pathways and lower transfer rates of matter and energy along trophic webs under P limitation (Elser et al, 2000). Nutrient limitation and high N:P ratios are consistently associated with shifts from fast-to slow-growing species in all types of media (Busch et al, 2018;Penuelas et al, 2013), and soil microbial and decomposer faunal compositions are consistently associated with soil and litter N:P ratios (Barantal, Schimann, Fromin, & Hättenschwiler, 2014;Delgado-Baquerizo et al, 2017;Eo & Park, 2016;Lee et al, 2015Lee et al, , 2017Leflaive et al, 2008;Ren et al, 2017;Su et al, 2015).…”

Section: Aquatic Ecosystemsmentioning

confidence: 99%

See 1 more Smart Citation

Anthropogenic global shifts in biospheric N and P concentrations and ratios and their impacts on biodiversity, ecosystem productivity, food security, and human health

Peñuelas

Janssens

Ciais

et al. 2020

Global Change Biology

157

119

View full text Add to dashboard Cite

The availability of carbon (C) from high levels of atmospheric carbon dioxide (CO2) and anthropogenic release of nitrogen (N) is increasing, but these increases are not paralleled by increases in levels of phosphorus (P). The current unstoppable changes in the stoichiometries of C and N relative to P have no historical precedent. We describe changes in P and N fluxes over the last five decades that have led to asymmetrical increases in P and N inputs to the biosphere. We identified widespread and rapid changes in N:P ratios in air, soil, water, and organisms and important consequences to the structure, function, and biodiversity of ecosystems. A mass‐balance approach found that the combined limited availability of P and N was likely to reduce C storage by natural ecosystems during the remainder of the 21st Century, and projected crop yields of the Millennium Ecosystem Assessment indicated an increase in nutrient deficiency in developing regions if access to P fertilizer is limited. Imbalances of the N:P ratio would likely negatively affect human health, food security, and global economic and geopolitical stability, with feedbacks and synergistic effects on drivers of global environmental change, such as increasing levels of CO2, climatic warming, and increasing pollution. We summarize potential solutions for avoiding the negative impacts of global imbalances of N:P ratios on the environment, biodiversity, climate change, food security, and human health.

show abstract

“…Therefore, a new challenge in the context of climate change mitigation is the management of terrestrial ecosystems to conserve existing OC stocks and to remove C from the atmosphere by increasing its storage in soil (DeGryze et al, ; Guo & Gifford, ). In addition to determining the magnitude of OC accumulation, LUCC also affects the quantity and quality of litter input and the mineralization rate of soil organic matter (SOM; Han et al, ; Ren et al, ). Hence, LUCC greatly influences C storage in soil.…”

Section: Introductionmentioning

confidence: 99%

Effects of land use change on organic carbon dynamics associated with soil aggregate fractions on the Loess Plateau, China

Zhong¹,

Han²,

Xu³

et al. 2019

Land Degrad Dev

Self Cite

View full text Add to dashboard Cite

Organic carbon (OC) sequestration through soil aggregation is an important aspect of land use change/conversion (LUCC) influencing the terrestrial ecosystem C cycle, although little is known on the changes in aggregate dynamics and their contributions to OC accumulation after LUCC in regions with serious soil erosion. Therefore, bulk soil samples under four land uses (farmland and three vegetated soils converted from farmland 42 years ago: Robinia pseudoacacia [RP42yr], Caragana korshinskii [CK42yr], and abandoned land [AL42yr]) in the Loess Plateau, China, was collected, separated into seven aggregate size fractions, and examined for OC content. Farmland conversion into AL42yr, CK42yr, and RP42yr increased macroaggregate (>2 mm) and mesoaggregate (2–0.25 mm) proportions, mean weight diameter, and geometric mean diameter but decreased microaggregates (0.25–0.053 mm) amount. Bulk soil and aggregates OC content and stock varied with soil depth and land use types but were usually highest in RP42yr. Mesoaggregates contained higher OC content and stock than other aggregates at 0‐ to 20‐cm depth under all land uses. Increases in the OC stocks of mesoaggregates accounted for 46% and 85% of the increase in bulk soil OC stocks at 0‐ to 20‐ and 20‐ to 40‐cm depth, respectively. Thus, soil OC accumulation after LUCC is mainly due to increased OC stock within mesoaggregates, which is further attributed to increased mesoaggregate proportions. Overall, vegetation restoration promotes the physical protection of OC by increasing soil aggregation, being a management option to enhance the C sequestration potential in ecological fragile regions.

show abstract

Response of microbial diversity to C:N:P stoichiometry in fine root and microbial biomass following afforestation

Cited by 130 publications

References 56 publications

Using proxies of microbial community‐weighted means traits to explain the cascading effect of management intensity, soil and plant traits on ecosystem resilience in mountain grasslands

Using proxies of microbial community‐weighted means traits to explain the cascading effect of management intensity, soil and plant traits on ecosystem resilience in mountain grasslands

Anthropogenic global shifts in biospheric N and P concentrations and ratios and their impacts on biodiversity, ecosystem productivity, food security, and human health

Effects of land use change on organic carbon dynamics associated with soil aggregate fractions on the Loess Plateau, China

Contact Info

Product

Resources

About