Welcome to Chinese Agricultural Science Bulletin,

Chinese Agricultural Science Bulletin ›› 2023, Vol. 39 ›› Issue (20): 67-73.doi: 10.11924/j.issn.1000-6850.casb2022-0589

Previous Articles     Next Articles

Soil Heavy Metal Availability: Research Progress on Its Influencing Factors and Transfer Rules in Crop-Soil System

LU Gangbin1(), E Shengzhe1,2(), YUAN Jinhua2, ZHAO Tianxin1, YE Gengkang1, ZHANG Peng1, LIU Yana1, WANG Yuxuan1   

  1. 1 College of Resources and Environment, Gansu Agricultural University, Lanzhou 730070
    2 Institute of Soil and Fertilizer and Water-saving Agriculture, Gansu Academy of Agricultural Sciences, Lanzhou 730070
  • Received:2022-07-08 Revised:2022-11-08 Online:2023-07-15 Published:2023-07-10

Abstract:

Soil is the place where plants grow and develop. Heavy metals in soil are absorbed by plants and enriched in plants through root system, and affect the growth of plants. To find out the influencing factors of heavy metals in soil and the transfer rules of heavy metals in different parts of plants, this paper introduced in detail the research progresses on soil heavy metals from the aspects of the sources, the mechanism of action, and the main factors affecting plants absorption of heavy metals based on related literature at home and abroad. Study show that the absorption of heavy metals by plants is affected not only by soil physical and chemical environment such as the soil pH value and organic matter content, but also by the degree of pollution, types of polluting elements, tillage methods and crop genotypes. Moreover, the additive, synergistic and antagonistic effects of heavy metals in soil also affect the absorption and enrichment of heavy metals in plants to some extent.

Key words: farmland soil, heavy metals, influencing factors, transfer rules, enrichment, migration, crop