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

2018 International Conference of Green Buildings and Environmental Management

土木建筑工程;生态环境科学

Wang, Naxia^1 ; Liang, Danxin^1 ; Cui, Shuang^1 ; Guo, Wenmiao^1 ; Li, Wei^1 ; Wang, Jun^1

College of Chemistry, Chemical Engineering and Environmental Engineering, Liaoning Shihua University, Fushun

113001, China^1

关键词: Accumulation characteristics;    Agricultural machine;    Agricultural practices;    Anthropogenic activity;    Correlation analysis;    Cultivation conditions;    Greenhouse vegetables;    Pollutant sources;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/186/6/012032/pdf
DOI  :  10.1088/1755-1315/186/6/012032

来源: IOP

【 摘 要 】

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 (P0.05) 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, SiO2, Al2O3 and Fe2O3). 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.