Work

Accumulation Characteristics and Sources of Available Pb in Soils under Greenhouse Cultivation Condition in Northeast China

Year: 2018

Type: conference-paper

Abstract: Greenhouse vegetable production (GVP) is one of the most effective cultivation methods, and the enrichment of heavy metals has been found in greenhouse soils. This study was conducted to determine the influence of cultivation ages on available Pb and find out pollutant sources. The concentrations of available Pb decreased with soil depth, and obviously accumulated in 0-40 cm soil profiles (P<0.05). Available Pb contents in 0-40 cm soil profiles fluctuated and did not significantly (P>0.05) correlate with cultivation duration. According to correlation analysis, there was no significant correlationship (P>0.05) between available Pb and soil properties (pH, SOM, sand, silt, clay, SiO 2 , Al 2 O 3 and Fe 2 O 3 ). It can be concluded that Pb in greenhouse soils might arise from comprehensive sources including anthropogenic activities and natural effects. Therefore, agricultural practices (i.e. manure and fertilizer input, pesticide spray, and application of agricultural machines) will not be a dominant factor of available Pb accumulation.

Source: IOP Conference Series Earth and Environmental Science

DOI: 10.1088/1755-1315/186/6/012032

Authors: Naxia Wang, Danxin Liang, Shuang Cui, Wenmiao Guo, Wei Li, Jun Wang

Institution: Liaoning Shihua 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: diamond

Funders: National Science Foundation, National Natural Science Foundation of China