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[1]程虎 许文年 向瀚宇 罗婷 夏栋**.不同修复年限植被混凝土基材有机碳氧化稳定性特征[J].应用与环境生物学报,2019,25(05):1-9.[doi:10.19675/j.cnki.1006-687x.2018.12040]
 CHENG Hu,XU Wennian,XIANG Hanyu,et al.Characteristics of soil oxidizable stable organic carbon in different restoration years for Substrate of Eco-Restoration of Vegetation Concrete*[J].Chinese Journal of Applied & Environmental Biology,2019,25(05):1-9.[doi:10.19675/j.cnki.1006-687x.2018.12040]
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不同修复年限植被混凝土基材有机碳氧化稳定性特征()
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《应用与环境生物学报》[ISSN:1006-687X/CN:51-1482/Q]

卷:
25卷
期数:
2019年05期
页码:
1-9
栏目:
研究论文
出版日期:
2019-10-31

文章信息/Info

Title:
Characteristics of soil oxidizable stable organic carbon in different restoration years for Substrate of Eco-Restoration of Vegetation Concrete*
作者:
程虎1 许文年12 向瀚宇1 罗婷1 夏栋3**
1三峡大学生物与制药学院 湖北 宜昌 443002
2三峡大学土木与建筑学院 湖北 宜昌 443002
3三峡大学水利与环境学院 湖北 宜昌 443002
Author(s):
CHENG Hu 1 XU Wennian12 XIANG Hanyu 1 LUO Ting1 XIA Dong 3**
1College of Biological and Pharmaceutical Sciences, China Three Gorges University, Yichang, Hubei 443002, China
2College of Civil Engineering and Architecture, China Three Gorges University, Yichang 443002, China
3College of hydraulic and environmental engineering, China Three Gorges University, Yichang 443002, China
关键词:
生态修复植被混凝土植被混凝土基材有机碳氧化稳定性氧化有机碳组分
Keywords:
ecological restoration vegetation concretesubstrate of eco-restorationsoil oxidizable stable organic carbon oxidizable organic carbon fractions
DOI:
10.19675/j.cnki.1006-687x.2018.12040
摘要:
研究有机碳氧化稳定性特征对了解基材质量的变化具有重要意义。本研究选择修复0年、3年、6年、9年、12年和15年的基材作为研究对象,分析了基材微生物量碳、总有机碳及其氧化有机碳组分(F1:极易氧化有机碳;F2:容易氧化有机碳;F3:较易氧化有机碳;F4:难氧化有机碳)随修复年限的动态变化特征。结果表明:①基材总有机碳(TOC)在修复早期下降显著,随年限增加略有升高,其后呈下降趋势,最后趋于稳定。②修复9年的基材氧化有机碳组分F1、F2和微生物量碳(MBC)显著大于12年和15年。并且从修复9年至15年,F1、F2和F3组分占TOC的比例分别从32.14%、38.43%和20.07%下降至24.34%、22.59%和18.71%,F4组分由9.99%增加至32.36%。③相关性分析的结果表明:总有机碳与F1、F2、F3和 F 4之间没有显著的相关性,而易氧化碳(ROC)与F1、F2和F3之间具有显著的正相关性(P<0.05)。微生物量碳与易氧化碳、F1和F2都具有显著的正相关性(P<0.05)。研究显示,随着修复年限的增加,基材有机碳的内部循环会受到阻碍,基材氧化有机碳组分可有效反映基材质量变化。(图4 表2 参45)
Abstract:
Studying the characteristics of soil oxidizable stable organic carbon in different restoration years in of Substrate of Eco-Restoration of Vegetation Concrete is of great significance for understanding the aging of substrate quality. This study was designed to investigate the?pH, moisture content, microbial biomass carbon (MBC), total organic carbon (TOC) and characteristics of oxidizable organic carbon fractions (F 1: very labile fraction of oxidizable organic, F 2: labile organic carbon, F3: less liable fraction of oxidizable organic carbon and F 4: non-labile fraction of oxidizable organic carbon) varied in different restoration years (0, 3, 6, 9, 12 and 15 years) for substrate of Eco-restoration of vegetation concrete. The results showed: 1 ) The total organic carbon (TOC) of substrate had a decreasing trend in the early restoration stage followed by a reduction, a subsequent increase and equilibrium state with an increase in restoration age. 2) The TOC showed no significant difference between restoration of 9 and 15 years, while the F1, F2 and soil?microbial biomass carbon (MBC) were significantly higher for restoration of 9 years than those for restoration of 12 and 15 years. In comparison to the results for restoration of 15 year, the proportion of F 1, F2 and F 3 in TOC for restoration of 9 year decreased from 32.14%, 38.43% and 20.07% to 24.34%, 22.59% and 18.71%, respectively, while that of F 4 increased from 9.99% to 32.36%. 3) The correlation analysis indicated that TOC was not related to F1, F2, F3 and F 4, while the readily oxidizable carbon (ROC) be of significance positively related to F1, F2 and F 3 ( P<0.05). The MBC had significant positive correlation with ROC, F1 and F 2 (P<0.05). The study showed that the internal circulation of the substrate organic carbon was hindered with the increasing year of repairing. The oxidized organic carbon fractions of the substrate can effectively reflect the change of substrate quality.

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备注/Memo

备注/Memo:
收稿日期 Received: 2018-12-1 接受日期 Accepted: 2019-02-18
国家重点研发计划项目(2017YFC0504902)、国家自然基金项目(51678348)和三峡库区生态环境教育部工程研究中心2016年开放基金(KF2016-04)
**通讯作者 Corresponding author (E-mail: xiadongsanxia@163.com)
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更新日期/Last Update: 2019-03-13