超富集植物与能源植物间作对Cd、Pb、Zn累积的影响

张杏锋; 吴萍; 冯健飞; 郭越宏; 高波

文章摘要

张杏锋,吴萍,冯健飞,郭越宏,高波.超富集植物与能源植物间作对Cd、Pb、Zn累积的影响[J].农业环境科学学报,2021,40(7):1481-1491.

超富集植物与能源植物间作对Cd、Pb、Zn累积的影响

Effects of intercropping on Cd, Pb, and Zn accumulation using hyperaccumulators and energy plants

投稿时间：2020-12-09

DOI：10.11654/jaes.2020-1415

中文关键词: 间作植物修复少花龙葵翅果菊能源植物重金属

英文关键词: intercropping phytoremediation Solanum photeinocarpum Pterocypsela indica energy plants heavy metals

基金项目:广西自然科学基金项目（2018GXNSFAA138045）；广西科技重大专项（桂科AA17204047）；广西高等学校高水平创新团队及卓越学者计划项目（桂财教函[2018]319号）；国家重点研发计划项目（2016YFD0800800）；广西矿冶与环境科学实验中心（KH2012ZD004）

作者	单位	E-mail
张杏锋	桂林理工大学, 广西环境污染控制理论与技术重点实验室, 广西桂林 541004 桂林理工大学, 岩溶地区水污染控制与用水安全保障协同创新中心, 广西桂林 541004
吴萍	桂林理工大学, 广西环境污染控制理论与技术重点实验室, 广西桂林 541004 桂林理工大学, 岩溶地区水污染控制与用水安全保障协同创新中心, 广西桂林 541004
冯健飞	桂林理工大学, 广西环境污染控制理论与技术重点实验室, 广西桂林 541004 桂林理工大学, 岩溶地区水污染控制与用水安全保障协同创新中心, 广西桂林 541004
郭越宏	桂林理工大学, 广西环境污染控制理论与技术重点实验室, 广西桂林 541004 桂林理工大学, 岩溶地区水污染控制与用水安全保障协同创新中心, 广西桂林 541004
高波	桂林理工大学植物与生态工程学院, 广西桂林 541004 桂林理工大学旅游与风景园林学院, 广西桂林 541004	gaobo@glut.edu.cn

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中文摘要:

间作模式是实现重金属污染土壤边修复边生产的重要措施。通过盆栽实验，研究了超富集植物（少花龙葵、翅果菊）与能源植物（皇草、甜高粱）间作对Cd、Pb、Zn污染土壤修复的影响。结果表明，间作对土壤有机质没有显著影响，但能提高土壤中有效态Cd、Pb、Zn含量。与单作相比，间作显著增加了少花龙葵和翅果菊的生物量，而显著降低了两能源植物生物量。所有处理中，少花龙葵与皇草间作处理显著提高了皇草地上部Cd和Zn含量，翅果菊与皇草间作显著提高了两植物地上部Cd和Zn含量。此外，翅果菊与皇草间作显著增加了单株植物地上部Cd和Zn的累积。单盆中Cd和Zn累积量最大的是翅果菊与皇草间作处理（Cd为397.65 μg·盆^-1，Zn为4 169.42 μg·盆^-1），其次为少花龙葵与皇草间作；少花龙葵与皇草间作对Pb累积量最大（Pb为158.28 μg·盆^-1），翅果菊与皇草间作对Pb累积量为98.17 μg·盆^-1。研究表明，翅果菊与皇草间作和少花龙葵与皇草间作可以显著提高Cd、Pb、Zn污染土壤的植物修复潜力。

英文摘要:

Intercropping is an important measure for phytoremediation coupled with agro-production. In this study, hyperaccumulators （Solanum photeinocarpum and Pterocypsela indica）and energy plants（Pennisetum americanum×P. thyphoideum and Sorghum bicolor） were mutually intercropped in pots to study the effects of intercropping on the co-remediation of Cd-, Pb-, and Zn-contaminated soil. The results showed that intercropping had no significant effect on soil organic matter; however, it did increase the content of available Cd, Pb, and Zn. Compared to the respective monoculture, the dry weights of Sol. photeinocarpum and Pt. indica were significantly increased under intercropping; however, the biomasses of the two energy plants were significantly decreased. Sol. photeinocarpum intercropped with the Pe.americanum×P. thyphoideum treatment significantly increased the Cd and Zn content in the shoots of Pe. americanum×P. thyphoideum. Pt. indica intercropped with Pe. americanum×P. thyphoideum treatment significantly increased the Cd and Zn content in the shoots of the two plants. The accumulation of Cd and Zn in the shoots of the two plants was significantly increased by P. indica intercropped with Pe. americanum×P. thyphoideum. In a single pot, the maximum values of Cd and Zn accumulation were produced by Pt. indica intercropped with Pe. americanum×P. thyphoideum（397.65 μg·pot^-1 for Cd and 4 169.42 μg·pot^-1 for Zn）, followed by Sol. photeinocarpum intercropped with Pe. americanum×P. thyphoideum. Pb accumulation was the highest in Sol. photeinocarpum intercropped with Pe. americanum×Pe. thyphoideum（158.28 μg·pot^-1 for Pb）. Pb accumulation in the intercropping of Pt. indica and Pe. americanum×P. thyphoideum was 98.17 μg·pot^-1. Therefore, Pt. indica intercropped with Pe. americanum×P. thyphoideum and Sol. photeinocarpum intercropped with Pe. americanum×Pe. thyphoideum can improve the phytoremediation efficiency of Cd-, Pb-, and Zn-contaminated soils.

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