Effect of a tree mixture and water availability on soil nutrients and extracellular enzyme activities along the soil profile in an experimental forest

Maxwell, Tania L.; Augusto, Laurent; Bon, Lucie; Courbineau, Adèle; Altinalmazis-Kondylis, Andreas; Milin, Sylvie; Bakker, Mark R.; Jactel, Hervé; Fanin, Nicolas

doi:10.1016/j.soilbio.2020.107864

Cited by 41 publications

(20 citation statements)

References 88 publications

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“…In addition, fertilization and engineering measures will also have a certain impact on soil enzyme activity. Studies have shown that applying nitrogen fertilizer and increasing soil moisture can significantly increase soil enzyme activity [ 66 , 67 ]. Therefore, this study selected catalase, phosphatase, and urease for determination and comparison between groups to try to analyze the effect of farmland improvement on soil enzymes.…”

Section: Resultsmentioning

confidence: 99%

Effect Mechanism of Land Consolidation on Soil Bacterial Community: A Case Study in Eastern China

Lin

Liu

et al. 2022

IJERPH

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Farmland consolidation is an effective tool to improve farmland infrastructures, soil quality, and sustain a healthy farmland ecosystem and rural population, generating contributions to food security and regional sustainable development. Previous studies showed that farmland consolidation regulates soil physical and chemical properties. Soil microorganisms also play an important role in soil health and crop performance; however, few studies reported how farmland consolidation influence soil microecology. Here, we used DNA sequencing technology to compare bacterial community structure in farmlands with and without consolidation. DNA sequencing technology is the most advanced technology used to obtain biological information in the world, and it has been widely used in the research of soil micro-ecological environment. In September 2018, we collected soil samples in Jiashan County, Zhejiang Province, China, and used DNA sequence technology to compare the bacterial community structure in farmlands with and without consolidation. Our results found that (1) farmland consolidation had significant impacts on soil microbial characteristics, which were mainly manifested as changes in microbial biomass, microbial diversity and community structure. Farmland consolidation can increase the relative abundance of the three dominant bacteria phyla and the three fungal dominant phyla, but it also negatively affects the relative abundance of the six dominant bacteria phyla and the three fungal dominant phyla. (2) Farmland consolidation had an indirect impact on soil bacterial community structure by adjusting the soil physical and chemical properties. (3) The impact of heavy metals on bacterial community structure varied significantly under different levels of heavy metal pollution in farmland consolidation areas. There were 6, 3, 3, and 5 bacterial genera that had significant correlations with heavy metal content in cultivated land with low pollution, light pollution, medium pollution, and heavy pollution, respectively. The number of heavy metal-tolerant bacteria in the soil generally increased first and then decreased under heavy metal polluted conditions. Our study untangled the relationship between varied farmland consolidation strategies and bacteria through soil physcicochemical properties and metal pollution conditions. Our results can guide farmland consolidation strategies and sustain soil health and ecological balance in agriculture.

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Section: Resultsmentioning

confidence: 99%

Effect Mechanism of Land Consolidation on Soil Bacterial Community: A Case Study in Eastern China

Lin

Liu

et al. 2022

IJERPH

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“…For instance, de Souza Machado et al [7,24] found that microplastic additions could increase water holding capacity in soils, therefore maintaining soil moisture for a longer period of time than control treatments. Greater water availability has often been linked to an increase in enzyme activity [67][68][69], which may thus explain the positive effect of microplastics on enzyme activities.…”

Section: (B) Microbial Functioning Response To Microplastic Additionsmentioning

confidence: 99%

Microplastics negatively affect soil fauna but stimulate microbial activity: insights from a field-based microplastic addition experiment

et al. 2020

Self Cite

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Microplastics are recognized as an emerging contaminant worldwide. Although microplastics have been shown to strongly affect organisms in aquatic environments, less is known about whether and how microplastics can affect different taxa within a soil community, and it is unclear whether these effects can cascade through soil food webs. By conducting a microplastic manipulation experiment, i.e. adding low-density polyethylene fragments in the field, we found that microplastic addition significantly affected the composition and abundance of microarthropod and nematode communities. Contrary to soil fauna, we found only small effects of microplastics on the biomass and structure of soil microbial communities. Nevertheless, structural equation modelling revealed that the effects of microplastics strongly cascade through the soil food webs, leading to the modification of microbial functioning with further potential consequences on soil carbon and nutrient cycling. Our results highlight that taking into account the effects of microplastics at different trophic levels is important to elucidate the mechanisms underlying the ecological impacts of microplastic pollution on soil functioning.

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“…Various soil enzymes are important indicators for soil biochemistry and fertility and are involved in the conversion processes and biological cycling of soil nutrients (Maxwell et al, 2020). In our study, when compared with S, the AM-S treatments greatly increased the activities of soil enzymes under straw and manure.…”

Section: Discussionmentioning

confidence: 50%

Effects of the returning organic wastes on soil enzymes and microbial quantity in dryland farming

Sun¹,

Sun²,

Opoku-Kwanowaa³

et al. 2021

Int. Agrophys.

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Effect of a tree mixture and water availability on soil nutrients and extracellular enzyme activities along the soil profile in an experimental forest

Cited by 41 publications

References 88 publications

Effect Mechanism of Land Consolidation on Soil Bacterial Community: A Case Study in Eastern China

Effect Mechanism of Land Consolidation on Soil Bacterial Community: A Case Study in Eastern China

Microplastics negatively affect soil fauna but stimulate microbial activity: insights from a field-based microplastic addition experiment

Effects of the returning organic wastes on soil enzymes and microbial quantity in dryland farming

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