Comprehensive evaluation on safe utilization potential of ten oilseed rape cultivars in a cadmium contaminated soil

IF 6.7 2区环境科学与生态学 Q1 BIOTECHNOLOGY & APPLIED MICROBIOLOGY

Environmental Technology & Innovation Pub Date : 2023-08-09 DOI:10.1016/j.eti.2023.103329

Hongbiao Cui , Ziyu Wang , Bo Ye , Kaixin Hu , Pengcheng Xu , Jing Zhou , Liqiang Ge , Xuebo Zheng , Jun Zhou

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Abstract

Oilseed rape (Brassica napus L.) planting could be a promising approach for the safe utilization of cadmium (Cd) contaminated soil. However, comprehensive evaluation on safe utilization potential of oilseed rape was lacked, including phytoextraction efficiency, health risk, and economic benefits. In this study, ten oilseed rape cultivars were planted in Cd-contaminated soils immobilized with limestone and a comprehensive evaluation was performed on the safe utilization potential. Results showed that the highest biomass of rapeseed (1363-1569 kg ha⁻¹) was found in Zhongshuang 11, Xiangzayou 787, and Luoyouza 101. Zhongyouza 19, Zhongshuang 11 and Dadi 199 had the highest Cd phytoextraction efficiency (3.31-3.76 g ha⁻¹). The Cd concentrations in all the rapeseeds ranged from 0.18–0.45 mg kg⁻¹ and were lower than the limit of food security standards, but oil Cd concentrations of three cultivars (Fengyou 730, Dadi 199, and Yangguang 50) were 0.90-1.56 times higher than those in the reference oils (0.04-0.05 mg kg⁻¹). Target hazard quotient (THQ) suggested that the Cd in all the oils were under the acceptable level for adults and children, whereas only of three cultivars (Huihaoyou 26, Luoyouza 101, and Zhongshuang 11) were at acceptable level at incremental lifetime cancer risk (ILCR) value. Based on the yields and market price of rapeseed, Luoyouza 101, Xiangzayou 787, and Zhongshuang 11 had the highest economic benefits (9812-11300 CNY ha⁻¹). Overall, the comprehensive evaluation indicates that Zhongshuang 11 is the most suitable for the safe utilization of Cd contaminated soil.

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镉污染土壤中10个油菜品种安全利用潜力综合评价

油菜（Brassica napus L.）种植是一种很有前途的镉污染土壤安全利用途径。然而，对油菜的安全利用潜力缺乏综合评价，包括植物提取效率、健康风险和经济效益。本研究将10个油菜品种种植在石灰固定化镉污染土壤中，并对其安全利用潜力进行了综合评价。结果表明，油菜生物量最高的是中双11号、香杂优787和罗油杂101，达1363-1569 kg ha−1。中优杂19号、中双11号和大地199对Cd的提取效率最高（3.31-3.76 g ha−1）。所有油菜籽中的Cd浓度在0.18–0.45 mg kg−1之间，均低于食品安全标准的限值，但三个品种（丰油730、大地199和阳光50）的油Cd浓度是参考油（0.04–0.05 mg kg−）的0.90-1.56倍。目标危险系数（THQ）表明，所有油中的Cd均低于成人和儿童的可接受水平，而只有三个品种（Huihaooyou26、Looyouza 101和Zhongshuang 11）在癌症风险（ILCR）增加的寿命值下处于可接受水平。从油菜籽产量和市场价格来看，罗油菜籽101、香油菜籽787和中双11的经济效益最高（9812-11300元ha−1）。综合评价表明，中双11号最适合镉污染土壤的安全利用。

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来源期刊

Environmental Technology & Innovation Environmental Science-General Environmental Science

CiteScore

14.00

自引率

4.20%

发文量

435

审稿时长

74 days

期刊介绍： Environmental Technology & Innovation adopts a challenge-oriented approach to solutions by integrating natural sciences to promote a sustainable future. The journal aims to foster the creation and development of innovative products, technologies, and ideas that enhance the environment, with impacts across soil, air, water, and food in rural and urban areas. As a platform for disseminating scientific evidence for environmental protection and sustainable development, the journal emphasizes fundamental science, methodologies, tools, techniques, and policy considerations. It emphasizes the importance of science and technology in environmental benefits, including smarter, cleaner technologies for environmental protection, more efficient resource processing methods, and the evidence supporting their effectiveness.