Understory vegetation diversity, soil properties and microbial community response to different thinning intensities in Cryptomeria japonica var. sinensis plantations

Frontiers in Microbiology, Год журнала: 2023, Номер 14

Опубликована: Фев. 28, 2023

Soil microorganisms are the key factors in elucidating effects of thinning on tree growth performance, but vegetation and soil species composition function after still not well elaborated.The understory diversity, physicochemical properties microbial community were investigated a trial plantation Cryptomeria japonica var. sinensis, including four intensities (control: 0%, LIT: 20%, MIT: 30% HIT: 40%), relationships structure with diversity assessed.The results showed that had greater effect shrub layer than herb layer. The bulk density contents organic matter, total potassium nitrogen increased increasing intensities. Shannon Chao indices bacteria fungi significantly lower LIT, MIT HIT treatments control. Thinning can increase abundance Proteobacteria Actinobacteria, higher led to relative Ascomycota Basidiomycota, Rozellomycota, Mortierellomycota. Redundancy analysis indicated rather main drivers communities, more sensitive bacteria. Functional prediction reduced potential risk human diseases plant pathogens, fixation capacity was highest treatment. cellulolysis saprotrophs fungi.The findings provide important insights into C. sinensis ecosystems, which is essential for developing strategies promote their ecological economic benefits.

Язык: Английский

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Variation of Soil Bacterial and Fungal Communities from Fluvo-Aquic Soil Under Chemical Fertilizer Reduction Combined with Organic Materials in North China Plain

Journal of soil science and plant nutrition, Год журнала: 2020, Номер 21(1), С. 349 - 363

Опубликована: Ноя. 9, 2020

Язык: Английский

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Comparison of soil bacterial community and functional characteristics following afforestation in the semi-arid areas

PeerJ, Год журнала: 2019, Номер 7, С. e7141 - e7141

Опубликована: Июнь 25, 2019

Changes in soil bacterial communities, which are crucial for the assessment of ecological restoration Chinese plantations, have never been studied "Three North Shelterbelt" project semi-arid areas. We used high-throughput sequencing 16S rDNA gene to investigate community diversity, structure, and functional characteristics three plantation forests, including Populus × canadensis Moench (PC), Pinus sylvestris var. mongolica (PS), tabuliformis (PT). In addition, environment factors were measured. There distinct differences among different forests. Compared PS PT, PC had a higher pH, dissolved organic carbon (DOC), available P, as well lower C/N ratio. Furthermore, afforestation with tree species significantly altered abundance Proteobacteria, Chloroflexi soil, its influence on diversity indices. The compositions groups related C N cycling from PS, PT grouped tightly, indicating that phylogenetic distance closer than between plus PC. Our results implied characteristics, functions obviously differed following afforestation, especially turn enormously established correlation microbial species.

Язык: Английский

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Variations in the diversity of the soil microbial community and structure under various categories of degraded wetland in Sanjiang Plain, northeastern China

Land Degradation and Development, Год журнала: 2020, Номер 32(6), С. 2143 - 2156

Опубликована: Дек. 29, 2020

Abstract Understanding the changes in microbial community composition wetlands affected by different types of degradation can help enrich theoretical knowledge about wetland degradation. However, studies relative role microorganisms under are rare ecology. Because agricultural development, a large volume groundwater has been extracted from Sanjiang Plain over last few decades, which caused To provide information for development and protection this ecosystem, investigations into processes important. The aim present work was to assess impacts on soil communities four Plain: swamp meadow (SW), (MW), paddy farmland (PF), cropland (CL). Both 16S ITS rRNA gene amplicon sequencing were used evaluate diversity bacteria fungi. A total 638,758 effective 916,211 valid internal transcribed spacer sequences obtained, classified 11 fungal 40 bacterial phyla. dominant phyla Ascomycota Proteobacteria, respectively. In addition, increased abundances Chloroflexi Gemmatimonadetes, but Proteobacteria Verrucomicrobia significantly decreased. Shannon index SW lower than those other investigated sites. Fungal showed no significant differences degraded wetlands. addition degradation, reactions their clearly coorelated with phosphorus (TP), potassium (TK), available (AK), organic matter (SOM), formed essential criteria that influenced communities. Wetland resulted decrease nutrient decline abundance phylum These be as an early warning signal degrading Plain.

Язык: Английский

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Soil pore size distribution shaped not only compositions but also networks of the soil microbial community

Applied Soil Ecology, Год журнала: 2021, Номер 170, С. 104273 - 104273

Опубликована: Окт. 27, 2021

Язык: Английский

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