对农用地土壤环境质量类别划分的思考:以贵州马铃薯产区Cd风险管控为例

Translated title of the contribution: Some thoughts on the classification of soil environmental quality for agricultural land: taking risk control of Cd in potato producing area of Guizhou as an example

Jing Song, Genyan Xu, Yongming Luo, Hui Gao, Wei Tang

Research output: Contribution to journalArticleAcademicpeer-review

Abstract

By compilation of data from field sampling, pot experiment and literature, we evaluated the suitability of the existing national standards (GB 15618-2018 and GB/T 36783-2018) for the classification of soil environmental quality in potato producing areas of Guizhou. The results showed that both soil Cd standards were overly stringent as, for example, these for potatoes grown in mining areas were more likely to exceed food standard. Here, we summarized the inadequacy of the existing sampling methods for soil-crop synchronized monitoring and proposed a sampling theory-based Decision Unit-Multi Increment Sampling method (DUMIS) for soil-crop synchronized monitoring and remediation verification. We proposed that the criteria for safe soil utilization should be derived on a site-specific basis using bioavailable fractions. In order to facilitate the evaluation of soil environmental quality and safety for the agricultural production regions of China, we suggested that further research is needed regarding the use of DUMIS in soil-crop synchronized monitoring and bioavailable fractions based criteria for safe utilization of mild to moderately contaminated soils.

Original languageChinese
Pages (from-to)192-198
Number of pages7
JournalEarth Science Frontiers
Volume26
Issue number6
DOIs
Publication statusPublished - 1 Nov 2019

Fingerprint Dive into the research topics of 'Some thoughts on the classification of soil environmental quality for agricultural land: taking risk control of Cd in potato producing area of Guizhou as an example'. Together they form a unique fingerprint.

  • Cite this