The effects of environmental, climatic and spatial factors on diatom diversity in Sphagnum peatlands in central and northeastern China

Li, Junlu; Bu, Zhao‐Jun; Huang, Xianyu; Zeng, Linghan; Chen, Xu

doi:10.1007/s10750-022-05100-7

Cited by 5 publications

(3 citation statements)

References 49 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The Simpson index, proposed by Edward Hugh Simpson, is commonly used to quantitatively describe the biodiversity of a region (Li et al., 2023; Somerfield et al., 2008). The calculation formula is as follows:

{D}_{\mathrm{simpson}}=\frac{\sum_{i=1}^{S_{\mathrm{obs}}}{n}_i\left({n}_i-1\right)}{N\left(N-1\right)}

{D}_{\mathrm{simpson}}=1-\frac{\sum_{i=1}^{S_{\mathrm{obs}}}{n}_i\left({n}_i-1\right)}{N\left(N-1\right)}

Where,

{S}_{\mathrm{obs}}

represents the number of observed OTUs;

{n}_i

represents the number of OTUs containing i sequences.…”

Section: Methodsmentioning

confidence: 99%

See 1 more Smart Citation

Effects of pesticide treatment against nematode disease on soil bacterial community structure and sweet potato yield and quality

Luo,

Zhu,

Xia

et al. 2024

Food and Energy Security

View full text Add to dashboard Cite

Sweet potato stem nematode disease is a devastating disease, which seriously affects the yield and quality of sweet potato (Ipomoea batatas (L.) Lam.). At present, soil treatment with pesticides is mainly used to prevent sweet potato stem nematode disease. In this study, Illumina MiSeq high‐throughput sequencing technology was used to analyze the diversity of soil bacterial and fungal communities treated with different pesticides. At the same time, high performance liquid chromatography was used to determine the pesticide residues in soil and sweet potato, and the impact on sweet potato yield was investigated. Kruskal–Wallis test was used to analyze the four α‐diversity indexes of soil under different pesticide treatments, and the differences were not significant (p > 0.05), indicating that there was no significant difference in the diversity and abundance of bacterial and fungal communities in soil under different pesticide treatments. The results of principal coordinate analysis showed that there was no significant difference in bacterial and fungal community structure among different pesticide treatments (p > 0.05). Pesticide residue analysis and yield statistics of sweet potato showed that the residual amount of three kinds of pesticides in sweet potato did not exceed the maximum limit stipulated by the current National Standards for Food safety (GB2763‐2021). When 5% chlorpyrifos phoxim particles were applied at 15.18 kg/acre, sweet potato was unaffected by pests and diseases basically, and the yield was the highest.

show abstract

{D}_{\mathrm{simpson}}=\frac{\sum_{i=1}^{S_{\mathrm{obs}}}{n}_i\left({n}_i-1\right)}{N\left(N-1\right)}

{D}_{\mathrm{simpson}}=1-\frac{\sum_{i=1}^{S_{\mathrm{obs}}}{n}_i\left({n}_i-1\right)}{N\left(N-1\right)}

Where,

{S}_{\mathrm{obs}}

represents the number of observed OTUs;

{n}_i

represents the number of OTUs containing i sequences.…”

Section: Methodsmentioning

confidence: 99%

“…The Simpson index, proposed by Edward Hugh Simpson, is commonly used to quantitatively describe the biodiversity of a region (Li et al, 2023;Somerfield et al, 2008). The calculation formula is as follows:…”

Section: Bioinformatics Analysismentioning

confidence: 99%

Effects of pesticide treatment against nematode disease on soil bacterial community structure and sweet potato yield and quality

Luo,

Zhu,

Xia

et al. 2024

Food and Energy Security

View full text Add to dashboard Cite

show abstract

“…Different from lakes and rivers, peatlands are semi-terrestrial ecosystems, where the water table is usually at or near the surface or the land [10]. Diverse microhabitats and spatial heterogeneity due to the discontinuous water availability host a high species diversity of diatoms [11]. The water table is one of the most important variables influencing peatland ecology, development, functions and processes [10].…”

Section: Introductionmentioning

confidence: 99%

Diatom cell-size composition as a novel tool for quantitative estimates of the water table in peatlands

Xu,

Huang,

Zeng

et al. 2024

Biol. Lett.

Self Cite

View full text Add to dashboard Cite

Diatom cell-size composition is an indicator of aquatic environmental changes but has been rarely investigated, especially in semi-terrestrial peatlands. In this study, both taxonomic composition and cell-size composition of diatoms were analysed in 41 samples from two montane peatlands, northeastern China. Redundancy analyses revealed that diatom taxonomic composition was significantly related to the depth to the water table (DWT) and Ca 2+ , while cell-size composition was significantly associated with DWT and Si. DWT was the most important factor and its sole effect explained 26.2% and 17.9% of the total variance in taxonomic composition and cell-size composition, respectively. Accordingly, diatom-based water-table transfer functions were developed based on taxonomic composition and cell-size composition, respectively. The maximum-likelihood (ML) model based on diatom taxonomic composition had the best performance, with a correlation coefficient value ( R 2 ) of 0.78 and the root mean squared error of prediction (RMSEP) of 6.66 cm. The ML model based on cell-size composition had similar performance, with an R 2 of 0.78 and the RMSEP of 6.87 cm, suggesting that diatom cell-size composition can be a new quantitative means to track past water-table changes. This method requires further appraisal with palaeoecological data but offers a new option that deserves exploration.

show abstract

Assessing diatom distribution in Cambay Basin, Western Arabian Sea: impacts of oil spillage and chemical variables

Parikh¹,

Patel²,

Patel³

et al. 2023

Environ Monit Assess

View full text Add to dashboard Cite

The effects of environmental, climatic and spatial factors on diatom diversity in Sphagnum peatlands in central and northeastern China

Cited by 5 publications

References 49 publications

Effects of pesticide treatment against nematode disease on soil bacterial community structure and sweet potato yield and quality

Effects of pesticide treatment against nematode disease on soil bacterial community structure and sweet potato yield and quality

Diatom cell-size composition as a novel tool for quantitative estimates of the water table in peatlands

Assessing diatom distribution in Cambay Basin, Western Arabian Sea: impacts of oil spillage and chemical variables

Contact Info

Product

Resources

About