Work

Effects of Mixed Cropping of Garden Plants with Brassica parachinensis on Remediation of Cr-Polluted Soil in Community Garden

Year: 2022

Type: article

Abstract: Industrialization and urbanization have produced large amounts of atmospheric and soil pollutants. Among them, heavy metals are one of the main byproducts that are widely distributed in the atmosphere, water, soil and organisms, which have a great impact on climate. It is of great significance to reduce their enrichment in soil by ecological restoration methods for the sustainable development of urban atmosphere and climate. This study investigated the effects of different garden plants (Festuca arundinacea, Ageratum conyzoides, Trifolium repens) mixed with Brassica parachinensis on plant growth, physiological indexes and Cr (chromium) content in aboveground and underground parts in Cr (the main heavy metal pollution produced by industrialization) contaminated soil. The yield of B. parachinensis was the highest under the mixed cropping mode with T. repens, with the Cr content in edible parts being lower than the standard, suggesting an effective combination of B. parachinensis in community gardens. The mixed cropping of F. arundinacea with Bra decreased B. parachinensis yield. Under the mixed cropping of A. conyzoides, the edible parts of B. parachinensis were aggravated by Cr pollution, which was not recommended for planting. Our results suggest that converting the monoculture mode of vegetables to mixed cropping with garden plants reduced heavy metal pollution of community garden plants and improved soil productivity and environmental quality.

Source: Atmosphere

DOI: 10.3390/atmos13121991

Authors: Shiyu Cui, Wenbin Liu, Hexian Jin, Qiao Yi, Ying Wang, Dan Liu

Institution: Zhejiang A & F University

Language: English

Topic: Heavy metals in environment

Subfield: Pollution

Field: Environmental Science

Domain: Physical Sciences

SDGs: Zero hunger, Life on land

Open Access status: gold

Estimated APC paid: $2,094