Stability of exogenous Cadmium in different vineyard soils and its effect on grape seedlings

Ajigul Mamut; Jianquan Huang; Okbagaber Andom; He Zhang; Na Zhang; Hu Zhou; Yizhong Lv; Zhaojun Li

doi:10.1016/j.scitotenv.2023.165118

Stability of exogenous Cadmium in different vineyard soils and its effect on grape seedlings

Sci Total Environ. 2023 Oct 15:895:165118. doi: 10.1016/j.scitotenv.2023.165118. Epub 2023 Jun 24.

Authors

Ajigul Mamut¹, Jianquan Huang², Okbagaber Andom³, He Zhang², Na Zhang², Hu Zhou⁴, Yizhong Lv⁵, Zhaojun Li⁶

Affiliations

¹ College of Land Science and Technology, China Agricultural University, Beijing 100193, PR China; State Key Laboratory of Efficient Utilization of Arid and Semi-arid Arable Land in Northern China, Institute of Agricultural Resources and Regional Planning, Chinese Academy of Agricultural Sciences, Beijing 100081, PR China.
² Institute of Forestry and Fruit Research, Tianjin Academy of Agricultural Sciences, Tianjin 300384, PR China.
³ State Key Laboratory of Efficient Utilization of Arid and Semi-arid Arable Land in Northern China, Institute of Agricultural Resources and Regional Planning, Chinese Academy of Agricultural Sciences, Beijing 100081, PR China.
⁴ College of Land Science and Technology, China Agricultural University, Beijing 100193, PR China.
⁵ College of Land Science and Technology, China Agricultural University, Beijing 100193, PR China. Electronic address: lyz@cau.edu.cn.
⁶ State Key Laboratory of Efficient Utilization of Arid and Semi-arid Arable Land in Northern China, Institute of Agricultural Resources and Regional Planning, Chinese Academy of Agricultural Sciences, Beijing 100081, PR China. Electronic address: lizhaojun@caas.cn.

PMID: 37364845
DOI: 10.1016/j.scitotenv.2023.165118

Abstract

Cadmium (Cd) being potentially toxic heavy metal, has become increasingly serious to vineyard soil and grapes in recent years. Soil type is one of the main factors affecting the absorption of Cd in grapes. To investigate the stabilization characteristics and form changes of Cd in different types of vineyard soils, a 90-days incubation experiment was conducted after exogenous Cd addition to 12 vineyard soils from typical vineyards in China. The inhibition of exogenous Cd on grape seedlings was determined based on the pit-pot incubation experiment (200 kg soil per pot). The results demonstrate that Cd concentration in all the sampling sites did not exceed the national screening values (GB15618-2018; i.e., 0.3 mg/kg when pH was lower than 7.5, 0.6 mg/kg when pH was higher than 7.5);. Cd in Fluvo-aquic soil 2, Red soils1, 2, 3 and Grey-Cinnamon soil is dominated by acid-soluble fraction, but was mainly in residual fraction in the remain soils. Throughout the aging process, proportion of the acid-soluble fraction increased and then decreased, while proportion of the residual fraction decreased and then increased, after exogenous Cd was added. The mobility coefficients of Cd in Fluvo-aquic soil 2 and Red soil 1, 2 increased 2.5, 3 and 2 folds, after exogenous Cd addition, respectively. Compared with CK (control), the correlation between total Cd content and its different fractions was relatively weak in the Cd_l (low concentration) and Cd_h (high concentration) groups. Poor Cd stabilization and strong inhibition of seedling growth rate were observed in Brown soil 1, black soil, red soil 1 and cinnamomic soil. Fluvo-aquic soil 2, 3 and Brown soil 2 showed good Cd stability and small inhibition effect on grape seedlings. These results show that Cd stability in soils and inhibition rate of grape seedlings by Cd are strongly influenced by soil type.

Keywords: Cd fractions; Community Bureau of Reference (BCR); Inhibition rate; Soil type; Vineyard soil.

MeSH terms

Acids
Cadmium / analysis
Farms
Seedlings / chemistry
Soil / chemistry
Soil Pollutants* / analysis
Vitis*

Substances

Cadmium
Soil
Soil Pollutants
Acids