Effect of land use changes on soil microbial enzymatic activity and soil microbial community composition on Maryland's Eastern Shore

Emmert, Elizabeth A. B.; Geleta, S.; Rose, Chelsi M.; Seho-Ahiable, Gloria E.; Hawkins, Ashley E.; Baker, K; Evans, Amanda S.; Harris, Mercedes; Mrozinski, Abigayle C.; Folkoff, Michael E.; Anderson, Philip D.; Briand, Christopher H.

doi:10.1016/j.apsoil.2020.103824

Cited by 11 publications

(8 citation statements)

References 24 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Several studies have reported that fungi can rapidly take up potassium and that the diversity of fungal communities is strongly associated with potassium content [ 72 , 73 ]. In addition, soil bacteria affects the solubility and availability of potassium, which conversely affects the selection of specific bacteria related to potassium concentration [ 16 , 74 , 75 ]. However, further studies are needed to understand the potential mechanism of the influence of AK on bacterial and fungal community composition in different land uses.…”

Section: Discussionmentioning

confidence: 99%

“…Hence, an understanding of the changing characteristics and drivers of soil microbial community composition under different land uses is vital to regulating SOC stabilization and improving soil fertility. Many studies have shown that land-use can change the composition and diversity of soil microbial communities [ 14 , 15 , 16 ]. Other studies, however, indicated that land-use had no effect on soil microbial community composition [ 17 , 18 , 19 ].…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Land-Use Driven Changes in Soil Microbial Community Composition and Soil Fertility in the Dry-Hot Valley Region of Southwestern China

Liu

Chen

et al. 2022

Microorganisms

View full text Add to dashboard Cite

The Dry-Hot Valley is a unique geographical region in southwestern China, where steep-slope cultivation and accelerating changes in land-use have resulted in land degradation and have aggravated soil erosion, with profound impacts on soil fertility. Soil microbes play a key role in soil fertility, but the impact of land-use changes on soil microbes in the Dry-Hot Valley is not well known. Here, we compared characteristics and drivers of soil microbial community composition and soil fertility in typical Dry-Hot Valley land uses of sugarcane land (SL), forest land (FL), barren land (BL) converted from former maize land (ML), and ML control. Our results showed that BL and SL had reduced soil organic carbon (SOC), total nitrogen (TN), and total potassium (TK) compared to ML and FL. This indicated that conversion of ML to SL and abandonment of ML had the potential to decrease soil fertility. We also found that fungal phyla Zoopagomycota and Blastocladiomycota were absent in SL and BL, respectively, indicating that land-use change from ML to SL decreased the diversity of the bacterial community. Redundancy analysis indicated that the relative abundance of bacterial phyla was positively correlated with TN, SOC, and available potassium (AK) content, and that fungal phyla were positively correlated with AK. Land-use indirectly affected the relative abundance of bacterial phyla through effects on soil moisture, clay, and AK contents, and that of fungal phyla through effects on clay and AK contents. In addition, land-use effects on bacteria were greater than those on fungi, indicating that bacterial communities were more sensitive to land-use changes. Management regimes that incorporate soil carbon conservation, potassium addition, and judicious irrigation are expected to benefit the stability of the plant–soil system in the Dry-Hot Valley.

show abstract

Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Land-Use Driven Changes in Soil Microbial Community Composition and Soil Fertility in the Dry-Hot Valley Region of Southwestern China

Liu

Chen

et al. 2022

Microorganisms

View full text Add to dashboard Cite

show abstract

“…Alpha diversities, including Chao, Simpson, and Shannon, were calculated using Mothur software version 8 ( Edgar et al, 2011 ) and tested using Kruskal-Wallis analysis ( Liang et al, 2020 ). Microbial community composition was analyzed using analysis of similarity (ANOSIM) and visualized using principal coordinates analysis (PCoA; Emmert et al, 2021 ). For bacterial and fungal communities, Bray-Curtis, weighted UniFrac (WU), and unweighted UniFracto (UU) distance matrices were analyzed.…”

Section: Methodsmentioning

confidence: 99%

Microbial community diversity and function analysis of Aconitum carmichaelii Debeaux in rhizosphere soil of farmlands in Southwest China

Liu

Jiang

et al. 2022

Front. Microbiol.

View full text Add to dashboard Cite

Understanding how microbial communities affect plant growth is crucial for sustainable productivity and ecological health. However, in contrast with the crop system, there is limited information on the microbial community associated with the medicinal plant. We observed that altitude was the most influential factor on the soil microbial community structures of Aconitum carmichaelii Debeaux. For community composition, bacterial reads were assigned to 48 phyla, with Proteobacteria, Acidobacteriota, and Actinobacteriota being the dominant phyla. The fungal reads were assigned to seven phyla, and Ascomycota was the predominant phylum detected in most groups. The four dominant phyla were categorized as keystone taxa in the co-occurrence networks, suggesting that they may be involved in soil disease suppression and nutrient mobility. Bacterial co-occurrence networks had fewer edges, lower average degree, and lower density at YL1, HQ1, HQ2, BC, and DL than fungal networks, creating less intricate rhizosphere network patterns. Furthermore, the bacterial and fungal communities showed strong distance decay of similarity across the sampling range. Overall, this study improves our understanding of regulating rhizosphere microbial communities in soil systems and also provides potential production strategies for planting A. carmichaelii.

show abstract

“…DHA is an indicator of soil health and is correlated with the number and diversity of soil microorganisms (Maurya et al, 2020). Soil DHA is usually analysed using two colorimetric methods: with 2,3,5-triphenyltetrazolium chloride (TTC) (Ciarkowska & Gambus, 2020;Hamidović et al, 2020;Lemanowicz et al, 2020;Uzarowicz et al, 2020) or with iodonitrotetrazolium formazan (INTF) (El Gouzi et al, 2015;Emmert et al, 2021;Hanajík et al, 2017;Ramirez et al, 2021). Poorer results for the TTC method have been reported due to the effects of drying, temperature, moisture and oxygen in the soil (Kumar et al, 2013).…”

Section: Introductionmentioning

confidence: 99%

Assessment of biotoxicity of three types of landfilled foundry waste on the basis of dehydrogenase activity

Bożym

2022

Environ Monit Assess

View full text Add to dashboard Cite

The microbiological activity of three types of landfilled foundry wastes, i.e. biologically reclaimed foundry waste (BFW), foundry waste landfilled since the 1990s (LFW) and fresh foundry waste (FFW), was investigated. The wastes originated from a Polish iron and steel foundry which uses organic binders based on phenol–formaldehyde resins and mineral binders to casting production. The physical and chemical properties and dehydrogenase activity (DHA) were determined in the waste samples and local soils. In addition, a pot experiment was performed to determine the effect of the addition of FFW with no microbial activity on soils. Additional correlation analysis was conducted between DHA and other parameters. It was found that biologically reclaimed foundry waste (BFW) showed the highest microbial activity, similar to soils from garden allotments and agricultural fields. The DHA in LFW was about a half lower than BFW. On the other hand, FFW did not show any microbial activity. A pot experiment showed that increasing the percentage of foundry waste relative to soil had a negative effect on DHA, probably as a result of soil dilution rather than the inhibitory effect of contaminants. It was concluded that the optimum addition of FFW to soils is 10% wt, due to the highest value of DHA among the other variants.

show abstract

Effect of land use changes on soil microbial enzymatic activity and soil microbial community composition on Maryland's Eastern Shore

Cited by 11 publications

References 24 publications

Land-Use Driven Changes in Soil Microbial Community Composition and Soil Fertility in the Dry-Hot Valley Region of Southwestern China

Land-Use Driven Changes in Soil Microbial Community Composition and Soil Fertility in the Dry-Hot Valley Region of Southwestern China

Microbial community diversity and function analysis of Aconitum carmichaelii Debeaux in rhizosphere soil of farmlands in Southwest China

Assessment of biotoxicity of three types of landfilled foundry waste on the basis of dehydrogenase activity

Contact Info

Product

Resources

About