Pattern of soil extracellular enzyme activities along a tidal wetland with mosaic vegetation distributions in Chongming Island, China

Liu, Lu; Li, Dezhi; Sun, Yuming; Zhu, Yingyang; Ren, Zixing; Kong, Rongpei; Jia, Peng; Peng, Nana; Jia, Jing; Ghulam, Rasool Samreen; Rafique, Tehreem; He, Jing; Ji, Yangqing; Xiao, Wang

doi:10.1016/j.jclepro.2021.127991

Cited by 10 publications

(3 citation statements)

References 60 publications

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“…The sampling points are shown in the Figure 1 . The eastern part of Chongming Island is the Dongtan Wetland [ 34 ], the western part has fewer asparagus planting areas, while the central part is the representative area of asparagus planting, and thus more sampling points were set up in the central part. We collected asparagus and the soil at the corresponding location to analyze the enrichment regularity of the elements under investigation.…”

Section: Methodsmentioning

confidence: 99%

Assessment of Contents and Health Impacts of Four Metals in Chongming Asparagus—Geographical and Seasonal Aspects

Zhang

Jia

et al. 2022

Foods

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In this paper, the contents of four typical metals (Pb, Cd, Hg, and As) in asparagus, water, and soil from Chongming Island were quantitatively determined by inductively coupled plasma mass spectrometry (ICP-MS). The contents of these metals in asparagus showed a common rule of Pb > As > Cd > Hg in different harvest seasons and regions. Significant seasonal differences were found in the contents by difference analysis, but no obvious regional differences were observed. Furthermore, the asparagus did not accumulate these four metals from the soil in Chongming Island by the assessment of bio-concentration factor. The asparagus was proved safe by the analysis of single-factor pollution index and Nemerow pollution index. Through combining the analysis of the above indexes and the geological accumulation index, we found that 51.62% of soil samples were mildly polluted by cadmium. The results of health risk analysis showed that the risk value of children was higher than that of adults under oral exposure, but the four metals in asparagus possessed no obvious risk to health. The above assessments illustrate that the daily consumption of asparagus in Chongming Island will not cause potential health impacts. It is of benefit to ensure the quality and economic interests of asparagus planting in Chongming Island through the investigation of this study.

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Section: Methodsmentioning

confidence: 99%

Assessment of Contents and Health Impacts of Four Metals in Chongming Asparagus—Geographical and Seasonal Aspects

Zhang

Jia

et al. 2022

Foods

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“…The findings indicated that BG and NAG activities tended to be higher in LY, BH, and MCY than GC and CC, probably because tree‐dominated wetlands may provide more nitrogen‐rich woody litters and supply more root‐derived organic carbon to the microorganisms, thus enhancing this enzyme activity. Liu et al ( 2021 ) and Menon et al ( 2013 ) previously proposed that vegetation types determine the quality and quantity of litters on the top soil layers and affect the structure of microbial communities via the release of secretions and oxygen around plant roots, hence indirectly influencing extracellular enzymatic activities. We observed that the activity of AP was significantly higher in BH compared to the other wetlands and it was significantly lower at 10–20 cm depth than 0–10 cm in LY, BH and GC.…”

Section: Discussionmentioning

confidence: 99%

Variations in soil microbial community structure and extracellular enzymatic activities along a forest–wetland ecotone in high‐latitude permafrost regions

Xie

et al. 2023

Ecology and Evolution

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“…The addition of crop straw can alter the activity of extracellular enzymes in the soil, which in turn can affect carbon transformation (Liu et al, 2022; Wei et al, 2015). Soil extracellular enzymes are known as catalysts for various biochemical reactions in soil and play a key role in the regulation of SOC transformation and nutrient cycling (Ai et al, 2012; Liu et al, 2021). Soil enzyme activity can respond quickly and accurately to small changes in soil organic matter (SOM) fraction, SOC content and soil microbial community structure (Deforest, 2009; Jian et al, 2016).…”

Section: Introductionmentioning

confidence: 99%

Changes in soil organic carbon and microbial community in saline soil following different forms of straw incorporation

Fan,

Zhang,

et al. 2024

European J Soil Science

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Straw has been commonly incorporated into soil to increase soil organic carbon (SOC) content. However, the response and mechanism of organic carbon transformation following the addition of different forms of straw to saline soil to have not been fully evaluated. Thus, in our study, chopped wheat straw, granular wheat straw and wheat straw biochar were used as exogenous organic amendments. The carbon‐to‐nitrogen ratio of each form of straw was adjusted to 25:1. Under the same amount of carbon input, the three forms of straw were added to saline soil for a one‐year incubation experiment. The research focused on studying the changes in SOC transformation, enzyme activity, and microbial community structure. At the end of incubation, both granular and biochar straw treatments had significantly increased SOC relative to the unamended control, with extent of SOC increase greater in the biochar straw treatment. The biochar straw treatment also had significantly higher dissolved organic carbon than the other treatments at end of the incubation. The enzyme activity of β‐cellobiohyrolase (CBH) was the highest in the granular straw treatment, which was increased by 71.9% compared with the chopped straw treatment (p < 0.05). The cumulative carbon mineralization amount (Cum C) in the granular straw treatment was the highest, which was increased by 757.4% and 21.3% compared with the biochar straw and chopped straw treatments, respectively (p < 0.05). The Mantel test analysis further revealed significant correlations between soil bacterial community and SOC content in soils treated with different straw incorporation forms, as well as between fungal community and extracellular enzyme activities. We assumed that a possible reason for the high SOC mineralization amount in the granular straw treatment was changing the structure of the Bacteroidota in the bacterial phylum and Blastocladiomycota in the fungal phylum. Based on these findings, it is believed that adding biochar can increase the SOC content, but its utilization by microorganisms is limited. However, applying granular straw will not have a negative impact on its use as a microbial carbon source, thereby promoting carbon transformation. Therefore, in future research aimed at enhancing soil fertility in saline soil regions, the adoption of granular straw as an agricultural practice is recommended and should be promoted.

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Pattern of soil extracellular enzyme activities along a tidal wetland with mosaic vegetation distributions in Chongming Island, China

Cited by 10 publications

References 60 publications

Assessment of Contents and Health Impacts of Four Metals in Chongming Asparagus—Geographical and Seasonal Aspects

Assessment of Contents and Health Impacts of Four Metals in Chongming Asparagus—Geographical and Seasonal Aspects

Variations in soil microbial community structure and extracellular enzymatic activities along a forest–wetland ecotone in high‐latitude permafrost regions

Changes in soil organic carbon and microbial community in saline soil following different forms of straw incorporation

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