Abstract
Plastic mulch plays a crucial role in agricultural production in arid and semi-arid regions, positively impacting crop yields, salt suppression, and seedling protection. However, as the usage of plastic mulch extends over time, residue accumulation becomes a significant issue in these regions. To clarify the effects of plastic mulch residue on soil fungi, this study focused on three typical cotton-growing areas in Xinjiang. Using high-throughput sequencing technology, the study analyzed the changes in the fungal community structure and diversity in rhizosphere and non-rhizosphere soils across 27 cotton fields under three different levels of plastic mulch residue: 0–75 kg/ha, 75–150 kg/ha, and 150–225 kg/ha. The results indicated that Ascomycota and Basidiomycota were the dominant fungal phyla across all treatments. Increasing levels of plastic mulch residue reduced the fungal richness in the soil, with a greater effects observed on rhizosphere fungi compared to bulk soil fungi. The α-diversity of cotton rhizosphere fungi showed an increasing trend, followed by a decrease with increasing plastic mulch residue, in Aksu and Bazhou, peaking at 75–150 kg/ha. Conversely, in Changji, the α-diversity decreased with increasing plastic mulch residue. The α-diversity of non-rhizosphere fungi associated with cotton decreased with increasing plastic mulch residue. Plastic mulch residue significantly altered the soil fungal α-diversity and had a greater effects on rhizosphere fungi. Different levels of plastic mulch residue had varying effects on the β-diversity of rhizosphere and non-rhizosphere fungi, significantly influencing rhizosphere fungi in Aksu and Bazhou and non-rhizosphere fungi in Changji and Bazhou. Overall, different levels of plastic mulch residue exerted varying degrees of influence on the community composition and diversity of soil fungi associated with cotton, potentially reducing the fungal richness and altering the community structure with increasing residue levels.
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Claims 7
Claim · model-written summary
Ascomycota and Basidiomycota dominated fungi across all residue treatments.
- Interactor
- Ascomycota and BasidiomycotaAscomycotaBasidiomycotae0symbiont
- Outcome
- dominant fungal phylae0
Not reportedTaxon
Verbatim
e0“Ascomycota and Basidiomycota were the dominant fungal phyla across all treatments”
Claim · model-written summary
Increasing plastic mulch residue reduced soil fungal richness, more strongly in rhizosphere fungi.
- Treatment
- Increasing levels of plastic mulch residuee0
- Outcome
- fungal richness in the soile0
- Direction
- reducede0
- Comparator
- bulk soil fungie0
Not reportedTaxon
Verbatim
e0“Increasing levels of plastic mulch residue reduced the fungal richness in the soil, with a greater effects observed on rhizosphere fungi compared to bulk soil fungi”
Claim · model-written summary
Cotton rhizosphere fungal alpha diversity in Aksu and Bazhou rose then fell, peaking at 75–150 kg/ha residue.
- Taxon
- cotton
Gossypium hirsutume0 - Treatment
- plastic mulch residuee0
- Outcome
- α-diversity of cotton rhizosphere fungie0
- Direction
- increasing trend, followed by a decreasee0
- Value
- 75–150 kg/hae0
- Setting
- Aksu and Bazhoue0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The α-diversity of cotton rhizosphere fungi showed an increasing trend, followed by a decrease with increasing plastic mulch residue, in Aksu and Bazhou, peaking at 75–150 kg/ha”
Claim · model-written summary
Cotton rhizosphere fungal alpha diversity decreased with increasing residue in Changji.
Not reportedTaxon
Verbatim
e0“in Changji, the α-diversity decreased with increasing plastic mulch residue”
Claim · model-written summary
Non-rhizosphere fungal alpha diversity associated with cotton declined as residue increased.
- Taxon
- cottonGossypium hirsutume0
- Treatment
- plastic mulch residuee0
- Outcome
- α-diversity of non-rhizosphere fungie0
- Direction
- decreasede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The α-diversity of non-rhizosphere fungi associated with cotton decreased with increasing plastic mulch residue”
Claim · model-written summary
Residue levels significantly influenced rhizosphere fungal beta diversity in Aksu and Bazhou.
Not reportedTaxonDirection
Verbatim
e0“Different levels of plastic mulch residue had varying effects on the β-diversity of rhizosphere and non-rhizosphere fungi, significantly influencing rhizosphere fungi in Aksu and Bazhou and non-rhizosphere fungi in Changji and Bazhou”
Claim · model-written summary
Residue levels significantly influenced non-rhizosphere fungal beta diversity in Changji and Bazhou.
- Treatment
- plastic mulch residuee0
- Outcome
- β-diversity of rhizosphere and non-rhizosphere fungie0
- Setting
- Changji and Bazhoue0
Not reportedTaxonDirection
Verbatim
e0“Different levels of plastic mulch residue had varying effects on the β-diversity of rhizosphere and non-rhizosphere fungi, significantly influencing rhizosphere fungi in Aksu and Bazhou and non-rhizosphere fungi in Changji and Bazhou”