Phytoremediation of heavy metal pollution: Hotspots and future prospects

Ecotoxicology and Environmental Safety

Zofia Chrienova¹  Junbang Wang¹  Kamil Kuca¹  Le Yang²  Patrik Oleksak²  Xiujuan Zhang²  Eugenie Nepovimova³  Qinghua Wu³  Yongsheng Yang⁴  Tongxin Wang⁵  Sha Li⁶ 

[1] Gardening, Yangtze University, Jingzhou 434025, China;;College of Horticulture &Department of Chemistry, Faculty of Science, University of Hradec Kralove, Hradec Kralove 500 03, Czech Republic;National Ecosystem Science Data Center, Key Laboratory of Ecosystem Network Observation and Modeling, Institute of Geographic Sciences and Natural Resources Research, Chinese Academy of Sciences, Beijing 100101, China;School of Geosciences and Info-Physics, Central South University, Changsha 410083, China;The Key Laboratory of Restoration Ecology in Cold Region of Qinghai Province/Northwest Institute of Plateau Biology, Chinese Academy of Science, Xining 810001, China;

关键词: Heavy metal contamination;    Phytoremediation;    Bibliometrics;    Cite space;    Web of science;   

DOI  :  

来源: DOAJ

【 摘 要 】

To clarify the global status and research hotspots of heavy metal pollution phytoremediation, we used Web of Science, Cite Space software, and VOS viewer to analyse 1123 publications from the period of 2000–2020. Literature categories, research hotpots, and the most prolific publications by country, institution, and author were analysed separately. Around 34% of the articles are contributed from five countries: China (29.37%), India (11.00%), Spain (6.29%), Italy (6.20%), and Pakistan (5.67%). The hot research topic keywords were “diversity”, “translocation”, and “enhanced phytoremediation”. Cadmium was the most highly concerned heavy metal in the phytoremediation. Twenty-three articles were highly cited, and they mainly focused on 1) enhancing the remediation ability of plants in heavy metal contaminated soil by microbial and chemical additives; 2) the molecular effect and mechanism of heavy metals on plant growth and development; 3) discovering novel heavy metal hyper-enriched plants which can remediate mixed heavy metal pollution. From the above analysis, we concluded that the future research directions should be 1) strengthening the plant remediation ability by biochemical means; 2) studying the molecular mechanism underlying heavy metal damage to plants; 3) studying the enrichment principle of plants for heavy metals. The present study provides a further understanding of the trends in phytoremediation of heavy metal pollution, and the data analysed can be used as a guide for future research directions.

【 授权许可】

Unknown