Distribution and influencing factors of selenium content in soil in karst areas in Mashan County, Guangxi, China
ZHANG Chun-Lai1(), YANG Hui1, Huang Fen1, CAO Jian-Hua1,2
1. Institute of Karst Geology, Chinese Academy of Geological Sciences Key Laboratory of Karst Dynamics, Ministry of Nature Resources and Science and Guangxi, Guilin 541004, China 2. International Research Center on Karst under the Auspices of UNESCO, Guilin 541004, China
This study aims to investigate the distribution characteristics of the total selenium content in soil in karst areas in Mashan County, Guangxi and to explore the effects of different soil parent materials, land uses, and soil types on the selenium content in soil. To this end, 492 samples of surface soil (0~20 cm) were collected from the northern part of Mashan County and the distribution of the total selenium content in the samples were studied by statistical methods. The results are as follows. The total selenium content in the soil varies from 0.20×10-6 to 3.54×10-6, with an average value of 0.76×10-6. Meanwhile, the selenium-rich area accounts for 98.29% and the coefficient of variation is 34.49%. The soil in the Permian Heshan formation bearing black shales and coal-measure strata has the highest selenium content, with an average of 1.17×10-6, while the Carboniferous Maping formation has the lowest selenium content, with an average of 0.64×10-6. In terms of different soil types, the lateritic red soil has the highest selenium content, with an average value of 1.04×10-6, while the fluvo-aquic soilhas the lowest selenium content, with an average value of 0.56×10-6. In terms of land use types,the forestland and orchard have a high selenium content in soil, while the paddy field, grassland, and arid land have a low selenium content. Therefore, the selenium content in soil in the study area is mainly affected by soil parent materials, with the selenium enrichmentin soil being affected by the organic matter content to a certain extent.
张春来, 杨慧, 黄芬, 曹建华. 广西马山县岩溶区土壤硒含量分布及影响因素研究[J]. 物探与化探, 2021, 45(6): 1497-1503.
ZHANG Chun-Lai, YANG Hui, Huang Fen, CAO Jian-Hua. Distribution and influencing factors of selenium content in soil in karst areas in Mashan County, Guangxi, China. Geophysical and Geochemical Exploration, 2021, 45(6): 1497-1503.
Wu Y Y, Peng Z K, Luo Z M. Multi-biological functions of selenium to the health of human beings and animals[J]. Journal of Hunan Agricultural University, 1997, 23(3):294-300.
The Group of Environment and Endemic Disease. The relationship between the distribution of ke-shan disease and the selenium content of foodgrains as a factor of chemical geogra-phical environment[J]. Acta Geographica Sinica, 1981, 36(4):369-376.
[4]
Sun G X, Meharg A A, Li G, et al. Distribution of soil selenium in China is potentially controlled by deposition and volatilization?[J]. Nature, 2016, 6:20953.
[5]
Liu Y, Tian X, Liu R, et al. Key driving factors of selenium-enriched soil in the low-Se geological belt: A case study in Red Beds of Sichuan Basin, China[J]. Catena, 2021, 196:104926.
doi: 10.1016/j.catena.2020.104926
[6]
Pan Z, He S, Li C, et al. Geochemical characteristics of soil selenium and evaluation of Se-rich land resources in the central area of Guiyang City, China[J]. Acta Geochimica, 2017, 36(2):240-249.
doi: 10.1007/s11631-016-0136-0
[7]
Zhu J, Zuo W, Liang X, et al. Occurrence of native selenium in Yutangba and its environmental implications[J]. Applied Geochemistry, 2004, 19(3):461-467.
doi: 10.1016/j.apgeochem.2003.09.001
Li J, Yang Z Q, Liu Z G, et al. Distribution of selenium in soils of nanning city and its influencing factors[J]. Acta Pedologica Sinica, 2012, 49(5):1012-1020.
Zhu J M, Qin H B, Luo T Y, et al. A comparative study of selenium fractionation in se-rich carbonaceous rocks of lower cambrian and permian in southwest China[J]. Geological Journal of China Universities, 2007, 13(1):69-74.
Qin J X, Fu W, Zheng G D, et al. Selenium distribution in surface soil layer of Karst area of Guangxi and its affecting factors: A case study of Wuming County[J]. Acta Pedologica Sinica, 2020, 57(5):1299-1310.
Huang Z L, Lin Q M, Fan R H. Geochemical characteristics of selenium-rich soil in Quanzhou county of Guangxi[J]. Geophysical and Geochemical Exploration, 2018, 42(2):381-385.
Chai L F, Li J, Zhong X Y, et al. Selenium contents and their relationship with main soil properties in farmland soils of southern Guizhong, Guanxi[J]. Chinese Journal of Soil Science, 2019, 50(4):899-903.
Yang Q, Hou Q Y, Gu Q B, et al. Study of geochemical characteristics and influencing factors of soil seleniumin the typical soil profiles in Wuming County of Guangxi[J]. Geoscience, 2016, 30(2):455-462.
Tian Y C, Huang Y L, Zhang Q, et al. Soil erosion and Selenium loss in Qinjiang River Basin in Beibu Gulf coastal zone[J]. China Environmental Science, 2019, 39(1):257-273.
[15]
Shao Y, Cai C, Zhang H, et al. Controlling factors of soil selenium distribution in a watershed in Se-enriched and longevity region of South China[J]. Environmental Science and Pollution Research, 2018, 25:20048-20056.
doi: 10.1007/s11356-018-2091-2
Yang Z Q, Li J, Zheng G D, et al. Geochemical characteristics of selenium-rich soil in Beibu Gulf coastal economic zone of Guangxi[J]. Geophysical and Geochemical Exploration, 2014, 38(6):1260-1264, 1269.
Jiang H Q, Lu G B, Zhao Z Y, et al. Geochemical characteristics of soil selenium in main agricultural land in Zhongshan County, Guangxi[J]. Minerals and Geology, 2020, 34(2):339-346.
[18]
Fordyce F M. Selenium Deficiency and Toxicity in the Environment[M]// Selinus O, Alloway B J, Centeno J A, et al. Essentials of Medical Geology: Revised Edition. Dordrecht:Springer Netherlands. 2013: 375-416.
[19]
刘铮. 中国土壤微量元素[M]. 南京: 江苏科学技术出版社, 1996.
[19]
Liu Z. Trace element in Chinese soil[M]. Nanjing: Jiangsu Science and Technology Press, 1996.
Luo K L, Li H J, Niu C X, et al. Evolution of arsenic and selenium of coals during mass extinction of land species in the Permian in southwestern China and its palaeoenvironmental significance[J]. Journal of Palaeogeography, 2008, 10(4):385-394.
Yu T, Yang Z F, Wang R, et al. Characteristics and sources of soil selenium and other elements in typical high selenium soil area of Enshi[J]. Soils, 2018, 50(6):1119-1125.
Shi Z L, Jin L X, Liao C, et al. Content characteristics and genesis of soil selenium in important cultivated areas of Leibo County, Sichuan Province[J]. Geophysical and Geochemical Exploration, 2020, 44(5):1253-1260.
Yu F, Zhang F L, Zhang Y W, et al. Geochemical characteristics and influential factors of soil selenium in typical agricultural area, Chongqing[J]. Geophysical and Geochemical Exploration, 2020, 44(4):830-838.
Jiang H H, Luo J, Cai L M, et al. Distribution of selenium and its influencing factors in soils of Puning City, Guangdong Province[J]. Geoscience, 2019, 33(1):161-168.
Ban L, Ding Y F. Distribution characteristics of selenium in Guangxi soil[J]. China Environmental Monitoring, 1992, 8(3):100-103.
[27]
Qin H B, Zhu J M, Liang L, et al. The bioavailability of selenium and risk assessment for human selenium poisoning in high-Se areas, China[J]. Environment International, 2013, 52(1):66-74.
doi: 10.1016/j.envint.2012.12.003
Xu W, Tang W H, Kuang C L, et al. Analysis on content of Se in coil of Hainan Province and its influencing factors[J]. Journal of Anhui Agricultural Sciences, 2010, 38(6):3026-3027.
Zhao S H, Yu W T, Zhang L, et al. Biogeochemical cycling of selenium,nutrition adjustment and differentiation cause in environment[J]. Chinese Journal of Ecology, 2005, 24(10):1197-1203.
Dai H M, Gong C D, Dong B, et al. Distribution of soil selenium in the northeast china plain and its influencing factors[J]. Acta Pedologica Sinica, 2015, 52(6):1356-1364.
Cai L M, Wang S, Wen H H, et al. Enrichment spatial distribution characteristics of soil selenium and its influencing factors[J]. Transactions of the Chinese Society of Agricultural Engineering, 2019, 35(10):83-90.
Zhang C, Wu Y Y, Peng Z K. Progress in the research of selenium in plants[J]. Journal of Hubei Institute for Nationalities:Natural Sciences, 2002, 20(3):58-62.
Zhang X Z, Ma Z S, Wang Z J, et al. Study of geochemistry character and transportation pattern of selenium and mercury in Kailuan coal feild of Tangshan[J]. Chinese Journal of Geology, 2012, 47(3):908-920.