贵州省白菜种植土壤镉风险管控标准研究

Translated title of the contribution: Derivation of risk screening and intervention values for cadmium-contaminated agricultural land based on Chinese cabbage in the Guizhou Province

Gen Yan Xu, Jing Song*, Hui Gao, Sha Zhang

*Corresponding author for this work

Research output: Contribution to journalArticleAcademicpeer-review

Abstract

The objective of this study was to derive regional soil Cd criteria for cultivated land. Six representative soils were collected from Guizhou plateau and were spiked with Cd(NO3)2 in a pot experiment using Chinese cabbage. Two widely utilized extractants, 0.43 mol·L-1 HNO3 and 0.01 mol·L-1 CaCl2, were also included to evaluate the phytoavailability of Cd and were correlated to Cd concentrations in cabbage by either linear regression or multi-linear regression(log transformed). Soil Cd risk screening values(RSVs)and risk intervention values(RIVs)were back calculated based on food quality standards. The results indicated that total Cd and available Cd could be used to establish a highly significant regression model or multiple regression model for the Cd content in the edible parts of Chinese cabbage. Within the pH range(5.5≤pH≤8.0), the calculated soil Cd RSVs50(0.8~1.7 mg·kg-1)and RIVs95(2.8~8.4 mg·kg-1)were higher than the existing national standard(GB 15618—2018). The 0.43 mol·L-1 HNO3-Cd based soil Cd criteria increased with increasing soil pH. The 0.01 mol·L-1 CaCl2-Cd based soil Cd criteria was independent of soil pH. RSVs95, RSVs50, and RIVs95 were 0.02, 0.078 mg·kg-1, and 0.09 mg·kg-1, respectively. Standard suitability assessment using field and literature data showed that the existing national soil Cd standard was rather conservative. The RSVs50 based on total Cd and two available Cd proposed in this study showed a high rate of correctness(>80%). The present study confirmed that for better risk management of agricultural land, the establishment of regional soil environmental standards based on available concentration and specific crops is required.

Original languageChinese
Pages (from-to)1490-1497
Number of pages8
JournalJournal of Agro-Environment Science
Volume38
Issue number7
DOIs
Publication statusPublished - Jul 2019

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risk screening
Chinese cabbage
Cadmium
agricultural land
cadmium
Screening
Soils
China
soil
soil pH
province
screening
risk management
cabbage
food quality
plateaus
Risk management
Linear regression
Crops
multiple regression

Cite this

Xu, Gen Yan ; Song, Jing ; Gao, Hui ; Zhang, Sha. / 贵州省白菜种植土壤镉风险管控标准研究. In: Journal of Agro-Environment Science. 2019 ; Vol. 38, No. 7. pp. 1490-1497.
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title = "贵州省白菜种植土壤镉风险管控标准研究",
abstract = "The objective of this study was to derive regional soil Cd criteria for cultivated land. Six representative soils were collected from Guizhou plateau and were spiked with Cd(NO3)2 in a pot experiment using Chinese cabbage. Two widely utilized extractants, 0.43 mol·L-1 HNO3 and 0.01 mol·L-1 CaCl2, were also included to evaluate the phytoavailability of Cd and were correlated to Cd concentrations in cabbage by either linear regression or multi-linear regression(log transformed). Soil Cd risk screening values(RSVs)and risk intervention values(RIVs)were back calculated based on food quality standards. The results indicated that total Cd and available Cd could be used to establish a highly significant regression model or multiple regression model for the Cd content in the edible parts of Chinese cabbage. Within the pH range(5.5≤pH≤8.0), the calculated soil Cd RSVs50(0.8~1.7 mg·kg-1)and RIVs95(2.8~8.4 mg·kg-1)were higher than the existing national standard(GB 15618—2018). The 0.43 mol·L-1 HNO3-Cd based soil Cd criteria increased with increasing soil pH. The 0.01 mol·L-1 CaCl2-Cd based soil Cd criteria was independent of soil pH. RSVs95, RSVs50, and RIVs95 were 0.02, 0.078 mg·kg-1, and 0.09 mg·kg-1, respectively. Standard suitability assessment using field and literature data showed that the existing national soil Cd standard was rather conservative. The RSVs50 based on total Cd and two available Cd proposed in this study showed a high rate of correctness(>80{\%}). The present study confirmed that for better risk management of agricultural land, the establishment of regional soil environmental standards based on available concentration and specific crops is required.",
keywords = "Cadmium, Risk intervention values, Risk screening values, Soil-crop transfer model",
author = "Xu, {Gen Yan} and Jing Song and Hui Gao and Sha Zhang",
year = "2019",
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doi = "10.11654/jaes.2018-1629",
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journal = "Journal of Agro-Environment Science",
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贵州省白菜种植土壤镉风险管控标准研究. / Xu, Gen Yan; Song, Jing; Gao, Hui; Zhang, Sha.

In: Journal of Agro-Environment Science, Vol. 38, No. 7, 07.2019, p. 1490-1497.

Research output: Contribution to journalArticleAcademicpeer-review

TY - JOUR

T1 - 贵州省白菜种植土壤镉风险管控标准研究

AU - Xu, Gen Yan

AU - Song, Jing

AU - Gao, Hui

AU - Zhang, Sha

PY - 2019/7

Y1 - 2019/7

N2 - The objective of this study was to derive regional soil Cd criteria for cultivated land. Six representative soils were collected from Guizhou plateau and were spiked with Cd(NO3)2 in a pot experiment using Chinese cabbage. Two widely utilized extractants, 0.43 mol·L-1 HNO3 and 0.01 mol·L-1 CaCl2, were also included to evaluate the phytoavailability of Cd and were correlated to Cd concentrations in cabbage by either linear regression or multi-linear regression(log transformed). Soil Cd risk screening values(RSVs)and risk intervention values(RIVs)were back calculated based on food quality standards. The results indicated that total Cd and available Cd could be used to establish a highly significant regression model or multiple regression model for the Cd content in the edible parts of Chinese cabbage. Within the pH range(5.5≤pH≤8.0), the calculated soil Cd RSVs50(0.8~1.7 mg·kg-1)and RIVs95(2.8~8.4 mg·kg-1)were higher than the existing national standard(GB 15618—2018). The 0.43 mol·L-1 HNO3-Cd based soil Cd criteria increased with increasing soil pH. The 0.01 mol·L-1 CaCl2-Cd based soil Cd criteria was independent of soil pH. RSVs95, RSVs50, and RIVs95 were 0.02, 0.078 mg·kg-1, and 0.09 mg·kg-1, respectively. Standard suitability assessment using field and literature data showed that the existing national soil Cd standard was rather conservative. The RSVs50 based on total Cd and two available Cd proposed in this study showed a high rate of correctness(>80%). The present study confirmed that for better risk management of agricultural land, the establishment of regional soil environmental standards based on available concentration and specific crops is required.

AB - The objective of this study was to derive regional soil Cd criteria for cultivated land. Six representative soils were collected from Guizhou plateau and were spiked with Cd(NO3)2 in a pot experiment using Chinese cabbage. Two widely utilized extractants, 0.43 mol·L-1 HNO3 and 0.01 mol·L-1 CaCl2, were also included to evaluate the phytoavailability of Cd and were correlated to Cd concentrations in cabbage by either linear regression or multi-linear regression(log transformed). Soil Cd risk screening values(RSVs)and risk intervention values(RIVs)were back calculated based on food quality standards. The results indicated that total Cd and available Cd could be used to establish a highly significant regression model or multiple regression model for the Cd content in the edible parts of Chinese cabbage. Within the pH range(5.5≤pH≤8.0), the calculated soil Cd RSVs50(0.8~1.7 mg·kg-1)and RIVs95(2.8~8.4 mg·kg-1)were higher than the existing national standard(GB 15618—2018). The 0.43 mol·L-1 HNO3-Cd based soil Cd criteria increased with increasing soil pH. The 0.01 mol·L-1 CaCl2-Cd based soil Cd criteria was independent of soil pH. RSVs95, RSVs50, and RIVs95 were 0.02, 0.078 mg·kg-1, and 0.09 mg·kg-1, respectively. Standard suitability assessment using field and literature data showed that the existing national soil Cd standard was rather conservative. The RSVs50 based on total Cd and two available Cd proposed in this study showed a high rate of correctness(>80%). The present study confirmed that for better risk management of agricultural land, the establishment of regional soil environmental standards based on available concentration and specific crops is required.

KW - Cadmium

KW - Risk intervention values

KW - Risk screening values

KW - Soil-crop transfer model

U2 - 10.11654/jaes.2018-1629

DO - 10.11654/jaes.2018-1629

M3 - Article

VL - 38

SP - 1490

EP - 1497

JO - Journal of Agro-Environment Science

JF - Journal of Agro-Environment Science

SN - 1672-2043

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