C:N:P stoichiometry as an indicator of Histosol drainage in lowland and mountain forest ecosystems

Lasota, Jarosław; Błońska, Ewa

doi:10.1186/s40663-021-00319-7

Cited by 10 publications

(2 citation statements)

References 30 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Previous studies showed that the leaf of plants is most sensitive to environmental changes, while ecological stoichiometry in leaves can reflect nutrient accumulation and limitation in the ecosystem [36]. In addition, the ratio of C to N or P in a plant can directly indicate the plant utilization efficiency of N or P and is negatively associated with plant growth rate [37]. The leaf stoichiometry ratio was usually applied to identify nutrient restriction during plant growth [38].…”

Section: Effects Of Amf and Re-vegetation Types On Plant Stoichiometr...mentioning

confidence: 99%

Mycorrhizal Fungi Reclamation Promotes Stoichiometric Homeostasis of Re-Vegetation Types and Affects Soil Bacterial Function in Mining Subsidence of Northern Loess Plateau

Xiao,

Bi,

Wang

2023

Forests

View full text Add to dashboard Cite

Re-vegetation types and mycorrhizal fungi reclamation play a vital role in the improvement of soil quality in the mining subsidence of the northern Loess Plateau. However, the effects of re-vegetation types and mycorrhizal fungi reclamation on plant stoichiometric homeostasis, soil bacterial communities and functional characteristics are still not understood well but are vital for mining green construction. Based on the fact that mycorrhizal fungi reclamation has been implemented for more than 10 years (inoculation with arbuscular mycorrhizal fungi (AMF) and control), we examined five re-vegetation types with different C:N:P stoichiometry in the roots, leaves and calculated homeostasis. Meanwhile, second-generation sequencing technology was used to measure soil bacterial communities and functional characteristics to further reveal the relationships between soil factors and bacteria that drive plant stoichiometry and homeostasis in the biological reclamation area of coal mining subsidence. Our results indicated that plant N:P ratio in the leaves of all re-vegetation types was less than 14, with the highest ratio observed in A. fruticosa (nitrogen-fixing plants), showing that re-vegetation growth was limited by the availability of nitrogen. Only leaves in AMF-inoculated plants were categorized as ‘homeostatic’, while inoculation with AMF in both leaves and roots could alleviate nitrogen restriction and improve ecological stoichiometric homeostasis. The dominant phylum was Proteobacteria, followed by Actinobacteria, Acidobacteria, accounting for 69.92%–73.22% of all bacterial species and 82% with Chloroflexi. Soil copiotrophic community (Proteobacteria) in the AMF inoculation area was higher than those in the control area under all re-vegetation types, while the oligotrophic community (Acidobacteria) was lower than the control. Further analysis showed that soil TP, SOC, C:N and HD played vital roles in shifting the soil bacteria community. Soil stoichiometry and AMF affect microbial composition. These results indicated that the re-vegetation types and mycorrhizal fungi reclamation could shift bacterial homogeneity. Hence, our results expound that mycorrhizal fungi reclamation could optimize the ecological strategies of reclaimed vegetation, alleviate N-limitations in plants, improve endogenous stability and promote the ecological function of soil bacteria, which provided theoretical bases for further understanding and application of green restoration and sustainable development in the mining subsidence of the northern Loess Plateau.

show abstract

Section: Effects Of Amf and Re-vegetation Types On Plant Stoichiometr...mentioning

confidence: 99%

Mycorrhizal Fungi Reclamation Promotes Stoichiometric Homeostasis of Re-Vegetation Types and Affects Soil Bacterial Function in Mining Subsidence of Northern Loess Plateau

Xiao,

Bi,

Wang

2023

Forests

View full text Add to dashboard Cite

show abstract

“…High emissions of N 2 O in drained peatlands are associated with nitrogen-rich organic matter, with C:N ratios lower than 30 (Klemedtsson et al, 2005;Liimatainen et al, 2018). Drainage and afforestation of peatlands tends to generate relative N enrichment, decreasing C:N ratios through peat degradation and increasing N mineralization (Krüger et al, 2015;Lasota and Błońska, 2021). Moreover, drained peatlands tend to have higher bulk density and lower porosity than pristine peatlands, which can lead to rapid saturation after rain, causing N 2 O pulses due denitrification associated with temporary anoxic conditions and high NO 3 − availability (Reay et al, 2004;Cui et al, 2016;Liu et al, 2019).…”

Section: Carbon Mineralization Pathwaysmentioning

confidence: 99%

Back to the Future: Restoring Northern Drained Forested Peatlands for Climate Change Mitigation

Escobar

Belyazid

Manzoni

2022

Front. Environ. Sci.

View full text Add to dashboard Cite

Draining peatlands for forestry in the northern hemisphere turns their soils from carbon sinks to substantial sources of greenhouse gases (GHGs). To reverse this trend, rewetting has been proposed as a climate change mitigation strategy. We performed a literature review to assess the empirical evidence supporting the hypothesis that rewetting drained forested peatlands can turn them back into carbon sinks. We also used causal loop diagrams (CLDs) to synthesize the current knowledge of how water table management affects GHG emissions in organic soils. We found an increasing number of studies from the last decade comparing GHG emissions from rewetted, previously forested peatlands, with forested or pristine peatlands. However, comparative field studies usually report relatively short time series following rewetting experiments (e.g., 3 years of measurements and around 10 years after rewetting). Empirical evidence shows that rewetting leads to lower GHG emissions from soils. However, reports of carbon sinks in rewetted systems are scarce in the reviewed literature. Moreover, CH4 emissions in rewetted peatlands are commonly reported to be higher than in pristine peatlands. Long-term water table changes associated with rewetting lead to a cascade of effects in different processes regulating GHG emissions. The water table level affects litterfall quantity and quality by altering the plant community; it also affects organic matter breakdown rates, carbon and nitrogen mineralization pathways and rates, as well as gas transport mechanisms. Finally, we conceptualized three phases of restoration following the rewetting of previously drained and forested peatlands, we described the time dependent responses of soil, vegetation and GHG emissions to rewetting, concluding that while short-term gains in the GHG balance can be minimal, the long-term potential of restoring drained peatlands through rewetting remains promising.

show abstract

Characteristics and controls of ecological stoichiometry of shrub leaf in the alpine region of northwest China

Jin

et al. 2023

CATENA

View full text Add to dashboard Cite

C:N:P stoichiometry as an indicator of Histosol drainage in lowland and mountain forest ecosystems

Cited by 10 publications

References 30 publications

Mycorrhizal Fungi Reclamation Promotes Stoichiometric Homeostasis of Re-Vegetation Types and Affects Soil Bacterial Function in Mining Subsidence of Northern Loess Plateau

Mycorrhizal Fungi Reclamation Promotes Stoichiometric Homeostasis of Re-Vegetation Types and Affects Soil Bacterial Function in Mining Subsidence of Northern Loess Plateau

Back to the Future: Restoring Northern Drained Forested Peatlands for Climate Change Mitigation

Characteristics and controls of ecological stoichiometry of shrub leaf in the alpine region of northwest China

Contact Info

Product

Resources

About