纤维类作物对农田土壤镉污染修复的研究进展

镉是毒性最强的重金属元素之一，对农田土壤生态系统造成了极大的危害，因此，对农田镉污染土壤修复的研究具有重要意义。与其他作物相比，棉花和麻类等纤维类作物具有生物量大、环境适应性强、经济价值高等特点，且对重金属离子具有较强的吸收和富集能力。概述了我国农田土壤镉污染现状，综述了镉对棉花、大麻、黄麻、苎麻、红麻等纤维类作物生长发育的影响，以及纤维类作物对土壤镉污染的应答反应机理，探索了纤维类作物对镉污染土壤的修复效果，以期为利用纤维类作物修复土壤镉污染奠定理论基础。

Research Progress on the Remediation of Cadmium Contaminated Farmland Soil by Fiber Crops

Cadmium （Cd） is one of the most toxic heavy metal elements to plant growth and has caused great harm to the farmland soil ecosystem. Therefore， the research on remediation of Cd contaminated farmland soil has great significance. Compared with other crops， fiber crops such as cotton and hemp have large biomass， strong environmental adaptability， high economic value， and strong absorption and enrichment capacity for heavy metal ions. This paper analyzed the current status of Cd pollution in farmland soil in China， summarized the effects of Cd on the growth and development of cotton， hemp， jute， ramie， kenaf and other fiber crops， and explored the response mechanism and the remediation effect of fiber crops on Cd contaminated soil， which aimed to provide a certain reference for the use of fiber crops for remediation of Cd contaminated farmland soil.