基于三七质量安全的土壤Cd和Pb风险阈值

doi:10.14088/j.cnki.issn0439-8114.2024.02.005

湖北农业科学 ›› 2024, Vol. 63 ›› Issue (2): 25-30.doi: 10.14088/j.cnki.issn0439-8114.2024.02.005

基于三七质量安全的土壤Cd和Pb风险阈值

孟溪^a, 梁社往^b, 吴涵^a, 陆春围^a, 何忠俊^a

a.云南农业大学,资源与环境学院,昆明 650500;
b.云南农业大学,农学与生物技术学院,昆明 650500

收稿日期:2023-04-07 出版日期:2024-02-25 发布日期:2024-03-14
通讯作者: 何忠俊,男,教授,博士,主要从事药用植物设施栽培种植研究,（电子信箱）hezhongjun@hotmail.com。
作者简介:孟溪（1997-）,男,山东五莲人,在读硕士研究生,研究方向为药用植物设施栽培种植,（电话）18706508503（电子信箱）1339751417@qq.com。
基金资助:
国家自然科学基金项目（81860679）; 云南省教育厅科学研究基金项目（2022Y0104）

The soil Cd and Pb risk threshold based on quality safety of Panax notoginseng

MENG Xi^a, LIANG She-wang^b, WU Han^a, LU Chun-wei^a, HE Zhong-jun^a

a. College of Resources and Environment,Yunnan Agricultural University, Kunming 650500, China;
b. College of Agronomy and Biotechnology,Yunnan Agricultural University, Kunming 650500, China

Received:2023-04-07 Online:2024-02-25 Published:2024-03-14

摘要/Abstract

摘要： 为保障三七（Panax notoginseng）绿色种植和质量安全,探讨中国三七安全生产的土壤风险阈值。分析土壤理化性质、土壤Cd（镉）、Pb（铅）含量和有效态、三七主根Cd、Pb含量,通过线性相关分析三七主根Cd、Pb与土壤理化性质及土壤Cd、Pb总量与有效态之间的关系。利用回归模型建立土壤Cd、Pb总量有效态与三七主根Cd、Pb的回归方程,反推土壤有效态Cd、Pb阈值。结果表明,三七种植区土壤Cd、Pb样品超标率分别是83.64%和16.36%,土壤Cd污染严重,土壤Pb处于清洁水平。三七主根Pb含量未超标,Cd含量超标率为29.09%。土壤pH与三七主根Pb呈显著负相关,三七主根Cd含量与土壤Cd含量和土壤有效态Cd含量分别呈显著和极显著正相关;三七主根Pb与土壤Pb含量和土壤有效态Pb均呈极显著正相关。基于三七主根Cd、Pb限量标准推导出土壤有效态Cd阈值为0.27 mg/kg,土壤有效态Pb阈值为70.66 mg/kg。

关键词: 三七（Panax notoginseng）, Cd（镉）, Pb（铅）, 土壤风险阈值

Abstract: To ensure green planting and quality safety of Panax notoginseng, the soil risk threshold of Panax notoginseng safety production in China was discussed. Physicochemical properties of soil, content and available contents of Cd and Pb in soil, and contents of Cd and Pb in the main root of Panax notoginseng were analyzed. The relationship between Cd, Pb in the main root of Panax notoginseng and soil physical and chemical properties as well as total and available Cd, Pb in soil was analyzed by linear correlation analysis. The regression equation between total available Cd, Pb in soil and Cd, Pb in the main root of Panax notoginseng was established by the regression model, and the soil available Cd and Pb threshold was inversely estimated. The results showed that the over standard rates of Cd and Pb in soil samples were 83.64% and 16.36%, respectively. The soil Cd pollution was serious and the soil Pb was at a clean level. The Pb content in the main root of Panax notoginseng did not exceed the standard, and the exceeding rate of Cd content was 29.09%. Soil pH was negatively correlated with Pb in the main root of Panax notoginseng. There was a significant positive correlation and a extremely significant positive correlation between Cd in the main root of Panax notoginseng and the soil Cd content and the soil available Cd, respectively. Pb in the main root of Panax notoginseng was significantly positively correlated with Pb content and available Pb in soil. Based on the limitation standard of Cd and Pb in the main root of Panax notoginseng, the threshold value of soil available Cd and soil available Pb was 0.27 mg/kg and 70.66 mg/kg, respectively.

Key words: Panax notoginseng, Cd, Pb, soil risk threshold

中图分类号:

S567.23⁺6

孟溪, 梁社往, 吴涵, 陆春围, 何忠俊. 基于三七质量安全的土壤Cd和Pb风险阈值[J]. 湖北农业科学, 2024, 63(2): 25-30.

MENG Xi, LIANG She-wang, WU Han, LU Chun-wei, HE Zhong-jun. The soil Cd and Pb risk threshold based on quality safety of Panax notoginseng[J]. HUBEI AGRICULTURAL SCIENCES, 2024, 63(2): 25-30.

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基于三七质量安全的土壤Cd和Pb风险阈值

The soil Cd and Pb risk threshold based on quality safety of Panax notoginseng

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