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[Fluorescence Properties of Glomalin and Its Relationship with Soil Physyicochemical Characteristics in Different Regions of Beijing City].

Identifieur interne : 000E39 ( Main/Curation ); précédent : 000E38; suivant : 000E40

[Fluorescence Properties of Glomalin and Its Relationship with Soil Physyicochemical Characteristics in Different Regions of Beijing City].

Auteurs : Li-Wei Chai [République populaire de Chine] ; Meng-Jiao Liu [République populaire de Chine] ; Da-Lin Jiang [République populaire de Chine] ; Hao Fan [République populaire de Chine] ; Xiao-Feng Cao [République populaire de Chine] ; Yi Huang [République populaire de Chine]

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RBID : pubmed:29965324

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English descriptors

Abstract

Glomalin-related soil proteins (GRSP), which has been used as a presumable biological indicator of soil quality, is of vital ecological importance. In this research, we tested the GRSP content and physicochemical property of soils collected in mountain, urban and suburb areas of Beijing City. Besides, the fluorescence property of GRSP was also studied by using EEM-PARAFAC. The results showed that GRSP could be decomposed into five compounds, terrestrial humic-like substances UVA, terrestrial humic-like substances UVC, oxidized quinones, soil fulvic acid and amino acids. The GRSP content and protein-like fluorescence substances in urban and suburb areas significant decreased and oxidized quinones content elevated in comparison with those in mountain area. The physicochemical property was also shaped by urbanization. Compare to mountain area, moisture content, total organic matters and total nitrogen significantly decreased in urban area soil and suburb area. GRSP content, terrestrial humic-like substances UVA and oxidized quinones content showed significant correlation with soil organic matter and total nitrogen. Base on that, an integrated index system mainly consisting of GRSP concentration and C1 component and C3 component was recommended to evaluate the soil health status.

DOI: 10.13227/j.hjkx.201606113
PubMed: 29965324

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pubmed:29965324

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<term>Glycoprotéines (composition chimique)</term>
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<div type="abstract" xml:lang="en">Glomalin-related soil proteins (GRSP), which has been used as a presumable biological indicator of soil quality, is of vital ecological importance. In this research, we tested the GRSP content and physicochemical property of soils collected in mountain, urban and suburb areas of Beijing City. Besides, the fluorescence property of GRSP was also studied by using EEM-PARAFAC. The results showed that GRSP could be decomposed into five compounds, terrestrial humic-like substances UVA, terrestrial humic-like substances UVC, oxidized quinones, soil fulvic acid and amino acids. The GRSP content and protein-like fluorescence substances in urban and suburb areas significant decreased and oxidized quinones content elevated in comparison with those in mountain area. The physicochemical property was also shaped by urbanization. Compare to mountain area, moisture content, total organic matters and total nitrogen significantly decreased in urban area soil and suburb area. GRSP content, terrestrial humic-like substances UVA and oxidized quinones content showed significant correlation with soil organic matter and total nitrogen. Base on that, an integrated index system mainly consisting of GRSP concentration and C1 component and C3 component was recommended to evaluate the soil health status.</div>
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