锰污染土壤石灰改良对油茶生长及抗氧化酶系统的影响

于方明; 漆培艺; 刘可慧; 周振明; 陈朝述; 唐舒婷; 李艺

文章摘要

于方明,漆培艺,刘可慧,周振明,陈朝述,唐舒婷,李艺.锰污染土壤石灰改良对油茶生长及抗氧化酶系统的影响[J].农业环境科学学报,2019,38(8):1882-1890.

锰污染土壤石灰改良对油茶生长及抗氧化酶系统的影响

Effects of lime on the growth and antioxidant enzyme system of Camellia oleifera in manganese-contaminated soil

投稿时间：2019-01-09

DOI：10.11654/jaes.2019-0042

中文关键词: 油茶锰石灰抗氧化酶

英文关键词: Camellia oleifera manganese lime antioxidant enzyme

基金项目:国家重点研发计划项目（2017YFD0801500）；国家自然科学基金项目（41661077）；广西创新驱动发展专项资金项目（桂科AA17204047-3）；广西自然科学基金项目（2017GXNSFBA198168，2018JJA150018）

作者	单位	E-mail
于方明	珍稀濒危动植物生态与环境保护教育部重点实验室, 广西桂林 541004 广西师范大学环境与资源学院, 广西桂林 541004 岩溶生态与环境变化研究广西高校重点实验室, 广西桂林 541004
漆培艺	广西师范大学环境与资源学院, 广西桂林 541004
刘可慧	珍稀濒危动植物生态与环境保护教育部重点实验室, 广西桂林 541004 岩溶生态与环境变化研究广西高校重点实验室, 广西桂林 541004 广西师范大学生命科学学院, 广西桂林 541004
周振明	珍稀濒危动植物生态与环境保护教育部重点实验室, 广西桂林 541004 广西师范大学环境与资源学院, 广西桂林 541004 岩溶生态与环境变化研究广西高校重点实验室, 广西桂林 541004
陈朝述	珍稀濒危动植物生态与环境保护教育部重点实验室, 广西桂林 541004 广西师范大学环境与资源学院, 广西桂林 541004 岩溶生态与环境变化研究广西高校重点实验室, 广西桂林 541004
唐舒婷	广西师范大学环境与资源学院, 广西桂林 541004
李艺	珍稀濒危动植物生态与环境保护教育部重点实验室, 广西桂林 541004 广西师范大学环境与资源学院, 广西桂林 541004 岩溶生态与环境变化研究广西高校重点实验室, 广西桂林 541004	liyi412@mailbox.gxnu.edu.cn

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中文摘要:

采用室内盆栽的方法，研究在采矿区和恢复区锰污染土壤中分别添加0（对照）、0.05%（S1）和0.10%（S2）的石灰对油茶生长及其抗氧化酶系统的影响。结果表明，石灰的添加显著提高了油茶根际土壤的pH值，降低了土壤中可交换态锰的含量。S1处理时，采矿区和恢复区油茶根、叶中的锰含量分别比对照降低了46.84%、19.50%和35.90%、31.24%，恢复区油茶提取系数和生物累积系数分别降低了24.53%和6.30%。采矿区油茶叶片中叶绿素a、叶绿素b的含量及恢复区中叶绿素b的含量随着石灰投加量的增加而增加，且提高了采矿区油茶的株高和恢复区的株质量。在采矿区，石灰添加提高了油茶叶片中SOD、POD活性及-SH和PCs的含量，S1和S2处理时SOD活性分别是对照的1.23倍和1.40倍，POD活性分别是对照的1.47倍和1.75倍。S2处理时，-SH和PCs的含量分别是对照的1.34倍和1.45倍。研究表明，石灰的添加引起了油茶抗氧化酶活性系统的改变。

英文摘要:

The effects of lime addition on the growth and antioxidant enzyme system of Camellia oleifera were investigated in greenhouses by adding different ratios of lime[0 (Control), 0.05% (S1), and 0.10% (S2)] to manganese-contaminated soils. The results indicated that lime addition significantly increased the soil pH and decreased the exchangeable manganese content. In both soil conditions, S1 treatment reduced the Mn concentration in roots and leaves, which were 46.84% and 19.50%, and 35.90% and 31.24%, respectively, lower than the control group. Meanwhile, S1 treatment significantly reduced the phytoextraction coefficient and bioaccumulation coefficient of C. oleifera in the recovery area soil condition, which decreased to 24.53% and 6.30%, compared with the control group. However, lime addition increased the content of chlorophyll a and chlorophyll b in the leaves of C. oleifera in mining area soil conditions and the content of chlorophyll b in the leaves of C. oleifera in recovery area soil conditions. Moreover, lime addition increased the height of C. oleifera in the mining area soil conditions and the weight of C. oleifera in recovery area soil conditions. In mining area soil conditions, S1 treatment can increase the contents of SOD and POD as well the contents of -SH and PCs. When the S1 and S2 treatments were processed, the contents of SOD were 1.23 times and 1.47 times higher than those in the control group; the contents of POD were 1.47 times and 1.75 times higher than the control group. When the S2 treatments were processed, the contents of -SH and PCs were 1.34 times and 1.45 times higher than those in the control. Thus, the results indicated that lime addition altered the antioxidant enzyme activity system in C. oleifera.

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