|Table of Contents|

Degradation of DnBP and DEHP in Aquic Brown Soil and Its Effects on Soil Respiration

《北方园艺》[ISSN:1001-0009/CN:23-1247/S]

Issue:
2022年18
Page:
76-82
Research Field:
Publishing date:

Info

Title:
Degradation of DnBP and DEHP in Aquic Brown Soil and Its Effects on Soil Respiration
Author(s):
LI Yushuang1; LIU Jiahao1; LU Qingxuan2; WEI Jianbing1; GUO Qian1; YANG Jiaxin1
(1.School of Environment，Shenyang University/Key Laboratory of Ecological Restoration of Regional Polluted Environment，Ministry of Education，Shenyang，Liaoning 110044;2.School of Life Science and Engineering，Shenyang University，Shenyang，Liaoning 110044)
Keywords:
phthalic acid esters; aquic brown soil; degradation half-life; soil respiration
PACS:
-
DOI:
10.11937/bfyy.20220893
Abstract:
The degradation kinetics of DnBP and DEHP in tidal brown soil and their effects on soil basal respiration were studied by soil incubation experiments，ultrasonic extraction and gas chromatography,in order to provide reference for the remediation of PESa contaminated soil and health risk assessment.The results showed that the degradation half-lives of DnBP ranged from 5.3 to 13.9 days and those of DEHP ranged from 15.2 to 31.0 days in the tested concentration range.When the half-lives increased with the increase of pollution concentration，indicating that the initial pollution concentration had a great impacton the microbial degradation of phthalic acid esters (PAEs).The amount of soil CO2 released dynamically was changing with the degradation of DnBP and DEHP，and the intensity of soil respiration which had a very significant positive correlation with the degradation rate of DnBP and DEHP in the soil.It indicated that DnBP and DEHP pollution had promoted soil respiration.

References:

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Last Update: 2022-11-29