Responses of soil specific enzyme activities to short-term land use conversions in a salt-affected region, northeastern China

Yu, Pujia; Tang, Xuguang; Zhang, Aichun; Fan, Genghua; Liu, Shiwei

doi:10.1016/j.scitotenv.2019.06.171

Cited by 45 publications

(21 citation statements)

References 44 publications

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“…Urease can promote the hydrolysis of nitrogen‐containing organic matter to ammonia which is the nitrogen source for plants. It was reported that the activities of enzymes related to carbon, nitrogen, and phosphorus increased due to the increase in microbial activities and the improvement of soil habitat (Wang, Liu, Xue, & Zhu, 2011; Yu, Tang, Zhang, Fan, & Liu, 2019). Moreover, Huang et al (2019) demonstrated that the MPs could act as an instinct microbial habitat (the latter microbial community analysis on MPs surfaces also demonstrated this conclusion), which might be the reason why the urease activities in soils amended with membranous PE and fibrous PP increased firstly.…”

Section: Resultsmentioning

confidence: 99%

The effects of three different microplastics on enzyme activities and microbial communities in soil

Zhou

Zhang

et al. 2020

Water Environment Research

186

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Soils always receive microplastics (MPs) from plastic mulching, compost, and sewage irrigation, but the effects of MPs on soil environment remain largely unexplored. The objectives of this study were to investigate the effects of three MPs (membranous polyethylene (PE), fibrous polypropylene (PP), and microsphere PP) on enzyme activities and microbial community structure in one loamy and sandy soil. The concentration of microsphere PP (2 mg/g) was one-tenth of those of the other two MPs (20 mg/g). The results showed that the effects of three MPs on urease, dehydrogenase, and alkaline phosphatase activities followed the order: fibrous PP > membranous PE > microsphere PP, membranous PE > microsphere PP > fibrous PP and fibrous PP > microsphere PP > membranous PE, respectively. Results from high-throughput sequencing of 16S rRNA revealed that the membranous PE and fibrous PP raised the alpha diversities of the soil microbiota, whereas the diversity indexes of microbiota on MPs surfaces were significantly lower than those in the amended soils. MPs significantly altered the microbial community structure, especially for the enrichment of Acidobacteria and Bacteroidetes, the depletion of Deinococcus-Thermus and Chloroflexi. Aeromicrobium, Streptomyces, Mycobacterium, Janibacter, Nocardia, Arthrobacter were prone to inhabit on the MPs surfaces.

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Section: Resultsmentioning

confidence: 99%

The effects of three different microplastics on enzyme activities and microbial communities in soil

Zhou

Zhang

et al. 2020

Water Environment Research

186

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“…Soil enzyme activity reflects both the direction and the intensity of cyclical biogeochemical processes in the soil and is considered an important biological indicator for assessing soil fertility [67,68]. Soil microbial abundance and enzyme activity depend on soil properties, including soil pH, water-air relations, and organic matter content, all of which are shaped by the type of parent rock and the course of the soil-forming process and may be subject to modification under anthropopressure [69].…”

Section: Discussionmentioning

confidence: 99%

Enzymatic Activity of Soils Forming on an Afforested Heap from an Opencast Sulphur Mine

Myszura

Żukowska

Kobyłka

et al. 2021

Forests

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Post-mining areas require reclamation. The main aim of reclamation is to restore the soil as a basic element of the terrestrial ecosystem. This paper presents the results of an evaluation of the enzymatic activity of soils formed on an afforested heap from an opencast sulphur mine. Six research sites were selected on the overburden heap of the Piaseczno sulphur mine, afforested 50 years ago. They differed in the type of soil in the subsoil and in the species composition of the stand. The activity of dehydrogenases, phosphatases, urease, total organic carbon, and total nitrogen was determined and statistical analysis of the obtained results showed that the activity of the evaluated enzymes in the soils formed in the reclaimed areas was significantly dependent on the type of substrate and the species composition of the plants. The activity of the evaluated enzymes was significantly positively correlated with the content of total nitrogen and the C/N ratio, and the activity of phosphatases and urease with the total organic carbon content. Within soils developed on the same texture, the influence of stand species was revealed. In soils formed on clay, the soils under the beech stand and under the birch stand were characterized by higher activity of enzymes. The soil developing under the stands of European larch and red oak was characterized by higher enzymatic activity on weakly clayey sands. On loose sands, the activity of dehydrogenases and urease was significantly higher under acacia robinia than under hornbeam.

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“…Plant restoration after farmland abandonment had a positive effect on the enzyme activities which was due to increased organic matter input and improved soil physico-chemical and microbial properties (Cao et al, 2008;Shang et al, 2014). Moreover, continuous and abundant input of organic matter can provide sufficient nutrients for the growth of microorganisms and also increase the surface adsorption of organic matter by enzymes and their substrates (Raiesi and Salek-Gilani, 2018;Yu et al, 2019). Our results indicate that even after 27 years of farmland abandonment, the four enzyme activities in the restored sites still could not reach the level of the natural marsh.…”

Section: Response Of Soil Enzyme Activities To Restoration Of Reclaimed Marshesmentioning

confidence: 99%

Responses of Soil Microbial Biomass and Enzyme Activities to Natural Restoration of Reclaimed Temperate Marshes After Abandonment

Wang

Sun

et al. 2021

Front. Environ. Sci.

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Restoration of reclaimed marshes has great effects on soil biological processes. However, the responses of soil microbial properties (microbial biomass and enzyme activities) to natural restoration of reclaimed marshes is poorly studied, especially in a long restoration chronosequence. This study assessed the responses of soil microbial properties to natural restoration and investigated the relationships between soil microbial properties and soil physico-chemical and plant properties. We selected a restoration chronosequence (1, 4, 8, 13, 17, 27 years) after farmland abandonment, a soybean field, and a natural marsh in Sanjiang Plain, northeast China. For each site, we analyzed the soil microbial biomass carbon and nitrogen (MBC and MBN), four enzymes (β-glucosidase, invertase, catalase, urease) activities, soil physico-chemical properties at 0–50 cm depths, and plant properties (biomass, height, and coverage). The MBC and MBN contents increased with restoration time, but MBN content slowed down after 8 years of restoration. After 27 years of restoration, the soil MBC and MBN contents were 15.7 and 3.2 times of those in the soybean field, but the largest contents of MBC and MBN in the restored sites were 7.78%, 27.76% lower than those in natural marshes, respectively. Moreover, soil enzyme activities and the geometric mean of enzymatic activities (GME) also increased with restoration but slowed down after 13 years of restoration. After 27 years of restoration, the GME was 2.9 times than that in the soybean field, but the largest GME in the restored sites was 31.15% lower than that in the natural marsh. MBC and MBN contents, soil enzyme activities, and GME had significant relationships with soil C:N ratio, organic carbon, nutrients (total nitrogen, available nitrogen, total phosphorus), bulk density, moisture content, pH, plant properties, (i.e. biomass, height, and coverage) (p < 0.01). Redundancy analysis revealed that soil C:N ratio, pH, moisture content, total nitrogen and phosphorus were main factors affecting MBC and MBN contents and enzyme activities. In conclusion, soil microbial properties can respond positively to the natural restoration process of the reclaimed marshes and were significantly correlated with specific parameters of soil physico-chemical and plant properties.

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Responses of soil specific enzyme activities to short-term land use conversions in a salt-affected region, northeastern China

Cited by 45 publications

References 44 publications

The effects of three different microplastics on enzyme activities and microbial communities in soil

The effects of three different microplastics on enzyme activities and microbial communities in soil

Enzymatic Activity of Soils Forming on an Afforested Heap from an Opencast Sulphur Mine

Responses of Soil Microbial Biomass and Enzyme Activities to Natural Restoration of Reclaimed Temperate Marshes After Abandonment

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