1∶50 000 Gaoluji Sheet was chosen as the research object in this study. The soil elements at two sampling densities of 6 points/km 2 and 4 points/km 2 are similar in geochemical parameter characteristics and spatial distribution. The sampling density of 4 points/km 2 in the map can meet the requirements of 1∶50,000 land quality survey and evaluation work. Based on the comparative analysis of the geochemical characteristics of soil elements under different sampling densities, the authors hold that the minimum sampling density (4 points/km 2) can be used when 1∶50,000 land quality survey is conducted in a relatively continuous farming area in the Huaibei plain coverage area. The soil environmental quality evaluation results show that the quality of the soil environment in this area is excellent. The priority is given to protecting the soil, and the safe use type soil is only in scattered distribution. The main impact indicator is Cd. The results can provide a scientific basis for the implementation of green pollution-free industries in this area.
陶春军, 史春鸿, 张笑蓉, 管后春, 贾十军. 淮北平原覆盖区土壤采样密度及其环境质量研究——以1∶5万高炉集幅为例[J]. 物探与化探, 2021, 45(1): 200-206.
TAO Chun-Jun, SHI Chun-Hong, ZHANG Xiao-Rong, GUAN Hou-Chun, JIA Shi-Jun. Research on soil sampling density and environmental quality of Huaibei plain covered area: A case study of 1∶50 000 Gaoluji Sheet. Geophysical and Geochemical Exploration, 2021, 45(1): 200-206.
Heim A, Wehrli L, Eugster W, et al. Effects of sampling design on the probability to detect soil carbon stock changes at the SwisCarboEurope site Lägeren[J]. Geoderma, 2009,149(3):347-354.
doi: 10.1016/j.geoderma.2008.12.018
[2]
Vašát R, Heuvelink G B M, Borüvka L. Sampling design optimization for multivariate soil mapping[J]. Geoderma, 2010,155(3/4):147-153.
doi: 10.1016/j.geoderma.2009.07.005
Wu C L, Wang R T, Ding K, et al. Geochemical survey and evaluation on soil quality in china: Research status and advances[J]. Northwestern Geology, 2018,51(3):240-252.
[5]
Tang X J, Shen C F, Shi D Z, et al. Heavy metal and persistent organic compound contamination insoil from Wenling:An emerging e-waste recycling city in Taizhou area,China[J]. Journal of Hazardous Materials, 2010,173(1/2/3):653-660.
doi: 10.1016/j.jhazmat.2009.08.134
Li X P, Xu C L, Liu X Y, et al. Bioactivity and environment risk of heavy metals in urban soil from Baoji City,P.R.China[J]. Acta Scientiae Circumstantiae, 2015,35(4):1241-1249.
Wang Y J, Wu T L, Zhou D M, et al. Advances in soil heavy metal pollution evaluation based on bibliometrics analysis[J]. Journal of Agro-Environment Science, 2017,36(12):2365-2378.
[8]
Zhao F J, Ma Y B, Zhu Y G, et al. Soil contamination in China:Current status and mitigation strategies[J]. Environmental Science & Technology, 2015,49(2):750-759.
pmid: 25514502
Liu C Z, Huang Y Z, Lei M, et al. Soil contamination and assessment of heavy metals of Xiangjiang River basin[J]. Environmental Science, 2012,33(1):260-265.
[10]
Hu Y N, Wang D X, Wei L J, et al. Bioaccumulation of heavy metals in plant leaves from Yan’an city of the loess plateau,China[J]. Ecotoxicology and Environmental Safety, 2014,110:82-88.
pmid: 25199586
Wang S, Li R H, Zhang Z Q, et al. Assessment of the heavy metal pollution and potential ecological hazardous in agricultural soils and crops of Tongguan, Shaanxi Province[J]. China Environmental Science, 2014,34(9):2313-2320.
Ministry of Ecology and Environment. GB 15618—2018 Soil environmental quality risk control standard for soil contamination of agricultural land[S]. Beijing: China Standard Press, 2018.
Yang L, Zhu A X, Qin C Z, et al. A soil sampling method based on representativeness grade of sampling points[J]. Acta Pedologica Sinica, 2011,48(5):938-946.
Yu W X, Zhao M S, Wang M, et al. Effects of sampling sizes and spatial interpolation methods on prediction accuracy of soil properties[J]. Science Technology and Engineering, 2017,17(25):186-191.