|Table of Contents|

Analysis of the Soil Chlorate and Perchlorate Pollution Levels and Pollution Sources in Lycium barbarum L.Orchards

《北方园艺》[ISSN:1001-0009/CN:23-1247/S]

Issue:
2024年22
Page:
67-72
Research Field:
Publishing date:

Info

Title:
Analysis of the Soil Chlorate and Perchlorate Pollution Levels and Pollution Sources in Lycium barbarum L.Orchards
Author(s):
YANG Chunxia1; ZHANG Fang2
(1.Quality Standards and Testing Institute of Agricultural Technology，Yinchuan,Ningxia 750002;2.Ningxia Technical College of Wine and Desertification Prevention，Yinchuan,Ningxia 750199)
Keywords:
Lycium barbarum L.orchards; soil; chlorate; perchlorate; content detection; pollution level and pollution source
PACS:
S 158.3
DOI:
10.11937/bfyy.20241686
Abstract:
Taking Lycium barbarum L.orchard top soil as the test material，the content of chlorate and perchlorate in soil of Lycium barbarum L.orchard in different planting areas (Nongkeng，Shizuishan，Zhongning，Yinchuan，Helan and Guyuan)，pollution distribution and pollution sources were studied by using internal standard isotope combined with ultra-high performance liquid chromatography-tandem mass spectrometry (UPLC-MS/MS),in order to provide reference for creating high quality and green Lycium barbarum L.orchards.The results showed that the detection rate of chlorate was 70% and the content was 0-16.9 μg·kg-1，and the detection rate of perchlorate was 100% and the content was 3.4-667.9 μg·kg-1 in the soil.The content of chlorate and perchlorate in the soil of Nongken，Shizuishan，Yinchuan and Helan Lycium orchard was relatively high，while the content in other areas was relatively low.Different soil types in different Lycium barbarum L.orchard had different enrichment capacity of harmful substances，but there was no significant rule to follow.The detection rate of chlorate in irrigation water was 92.3%，the content was 0-28.700 μg·L-1,and the detection rate of perchlorate was 100%，the content was 0-4.090 μg·L-1.The limit values of chlorate (0.70 mg·L-1) and perchlorate (0.07 mg·L-1) in GB 5749-2022 Sanitary Standard for Drinking Water were not exceeded.Chlorate was not detected in fertilizer,and the average content of perchlorate was as high as 4.02 mg·kg-1.The correlation analysis showed that the correlation between the contents of chlorate and perchlorate in soil and water was low (0.345,-0.148)，the correlation between soil and perchlorate in fertilizer was moderate (0.444)，and the correlation between water and perchlorate in fertilizer was high (0.863).It could be preliminatively judged that the chlorate in soil mainly comes from irrigation water and fertilizer，and the contribution rate of fertilizer was larger.Fertilizer was the main contributor to perchlorate.

References:

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Last Update: 2024-12-03