| 香根草对扑草净污染水体的净化潜力 |
| |
| 引用本文： | 石傲傲,郑毅,张坤,邓志华,角慈梅,孙仕仙.香根草对扑草净污染水体的净化潜力[J].浙江农林大学学报,2021,38(6):1245-1252. |
| |
| 作者姓名： | 石傲傲 郑毅 张坤 邓志华 角慈梅 孙仕仙 |
| |
| 作者单位： | 1.西南林业大学 国家高原湿地研究中心，云南 昆明 6502242.西南林业大学 湿地学院，云南 昆明 6502243.云南开放大学 乡村振兴教育学院，云南 昆明 6502234.云南农业大学 植物保护学院，云南 昆明 6502215.西南林业大学 生态与环境学院，云南 昆明 650224 |
| |
| 基金项目： | 国家自然科学基金资助项目(41867027，51463014)；云南省“万人计划”青年拔尖人才专项(80201442)；云南省第4批博士后定向培养资助项目(321801) |
| |
| 摘 要： | 目的 探究香根草Vetiveria zizanioides对扑草净污染水体的修复潜力。 方法 采用温室水培模拟实验的方法，研究香根草对水体不同初始质量浓度(1.0、5.0、10.0、15.0 mg·L?1)扑草净的吸收和去除特征。 结果 相同培养时间下，随水体扑草净初始质量浓度增加，香根草茎叶和根系扑草净质量分数显著增加(P＜0.05)，在第5天达到最大值，之后呈波动下降趋势；随培养时间延长，水体扑草净质量浓度显著降低(P＜0.05)。与未种植香根草相比，香根草种植组水体扑草净降解半衰期缩短了14.80~19.78 d，去除率提高了22.52%~55.57%。相关性分析表明:水体扑草净质量浓度与香根草转移系数呈极显著负相关(P＜0.01)，与相对去除率相关性不显著(P＞0.05)，与培养时间呈极显著正相关(P＜0.01)。 结论 种植香根草可提高水体扑草净降解速率和去除率，香根草可作为扑草净污染水体修复的先锋植物。图2表4参31
|
| 关 键 词： | 香根草 扑草净 吸收去除 根际效应 植物修复 |
| 收稿时间： | 2020-09-15 |
Remediation potential of Vetiveria zizanioides on the water polluted with prometryn |
| |
| SHI Aoao,ZHENG Yi,ZHANG Kun,DENG Zhihua,JIAO Cimei,SUN Shixian.Remediation potential of Vetiveria zizanioides on the water polluted with prometryn[J].Journal of Zhejiang A&F University,2021,38(6):1245-1252. |
| |
| Authors: | SHI Aoao ZHENG Yi ZHANG Kun DENG Zhihua JIAO Cimei SUN Shixian |
| |
| Affiliation: | 1.National Plateau Wetland Research Center, Southwest Forestry University, Kunming 650224, Yunnan, China2.College of Wetland, Southwest Forestry University, Kunming 650224, Yunnan, China3.College of Rural Revitalization Education, Yunnan Open University, Kunming 650223, Yunnan, China4.College of Plant Protection, Yunnan Agricultural University, Kunming 650221, Yunnan, China5.College of Ecology and Environment, Southwest Forestry University, Kunming 650224, Yunnan, China |
| |
| Abstract: | Objective This study is aimed to explore the remediation potential of Vetiveria zizanioides on prometryn polluted water. Method The characteristics of absorption and removal of prometryn by V. zizanioides with different initial concentrations (1.0, 5.0, 10.0, 15.0 mg·L?1)were studied by hydroponic simulation experiment in greenhouse. Result With the same cultivation time, the increase of initial prometryn concentration brought about a significant increase of prometryn concentration (P＜0.05) in the shoots and roots of V. zizanioides, which reached the maximum on the 5th day, and then demonstrated a fluctuating decline. The extension of cultivation time led to a significant decrease in prometryn concentration in water (P＜ 0.05). Compared with the control without V. zizanioides, the degradation half-life of prometryn in the treatment group with V. zizanioides was shortened by 14.80?19.78 days, and the removal rate was increased by 22.52%?55.57%. The concentration of prometryn in water had a significant negative correlation with the transfer coefficient of V. zizanioides (P＜0.01), no significant correlation with relative removal rate (P＞0.05), but a significant positive correlation with the cultivation time (P＜0.01). Conclusion The planting of V. zizanioides can promote the degradation rate and removal rate of prometryn, therefore, V. zizanioides can be used as a pioneer plant in the remediation of prometryn polluted water. Ch, 2 fig. 4 tab. 31 ref.] |
| |
| Keywords: | |
|
| 点击此处可从《浙江农林大学学报》浏览原始摘要信息 |
|
点击此处可从《浙江农林大学学报》下载全文 |
|
