Geochemical characteristics of selenium and cadmium in soil and crops in Enshi area
Shi-Qi TANG1,2,3, Neng WAN4, Ming-Zhong ZENG4, Ke YANG1,2,3, Fei LIU1,2,3, Min PENG1,2,3, Kuo LI1,2,3, Zheng YANG1,2,3
1. Institute of Geophysical and Geochemical Exploration,Chinese Academy of Geological Sciences,Langfang 065000,China 2. Research Center of Geochemical Survey and Assessment on Land Quality,China Geological Survey,Langfang 065000,China 3. Key Laboratory of Geochemical Cycling of Carbon and Mercury in the Earth's Critical Zone,Chinese Academy of Geological Sciences,Langfang 065000,China 4. Hubei Geological Survey,Wuhan 430034, China
The 1:25 million land geochemical survey conducted in Enshi area shows that the surface soil in Enshi area is rich in selenium, and the content of cadmium is also high. Based on the data of 3 950 surface soil samples and 362 crop samples in this area, the geochemical characteristics of selenium and cadmium, co-generation factors, and the capability of different types of crops for absorbing and enriching the two elements are discussed.The results show that the selenium and cadmium in the surface soil of Enshi area is associated with each other. The distribution of the two elements is mainly controlled by the Permian soil parent material, and the occurrence of selenium and cadmium is closely related to organic matter and sulfide in soil. Comparison of BCF of selenium and cadmium in different crops shows that ginkgo, corn and tea have higher absorption capacity for selenium than for cadmium, and hence these crops could be used as the preferred crops for the development of selenium-enriched agricultural products in Enshi area. At the same time, the pH of the soil should also be considered. The medium alkaline soil may be more likely to avoid the risk of cadmium enrichment in agricultural products. In addition, selenium has a detoxifying effect on cadmium. Selenium-rich environment will significantly reduce the harm of cadmium to human body.
唐世琪, 万能, 曾明中, 杨柯, 刘飞, 彭敏, 李括, 杨峥. 恩施地区土壤与农作物硒镉地球化学特征[J]. 物探与化探, 2020, 44(3): 607-614.
Shi-Qi TANG, Neng WAN, Ming-Zhong ZENG, Ke YANG, Fei LIU, Min PENG, Kuo LI, Zheng YANG. Geochemical characteristics of selenium and cadmium in soil and crops in Enshi area. Geophysical and Geochemical Exploration, 2020, 44(3): 607-614.
Du L N, Yu R Z, Wang H Y, et al. Research progress on heavy metal cadmium pollution and its toxicity[J]. Journal of environment and health, 2013,30(2):167-173.
Cui Y S, Chen X C. Bioavailability of soil cadmium and its health risk assessment[J]. Environmental science, 2010,32(2):403-408.
[6]
Zhu J M, Zheng B S. Distribution of selenium in a mini-landscape of Yutangba, Enshi, Hubei Province, China[J]. Applied Geochemistry, 2001,16(11-12):1333-1344.
doi: 10.1016/S0883-2927(01)00047-6
[7]
Chang C Y, Yin R S, Wang X, et al. Selenium translocation in the soil-rice system in the Enshi seleniferous area, Central China[J]. Science of the Total Environment, 2019,669:83-90.
pmid: 30878943
[8]
Zhu J M, Han W L, Lei L, et al. Selenium speciation of Se-rich rocks from Yutangba of Enshi, China[J]. Goldschmidt Conference Abstracts, 2006,70(18):754.
Yang L C, Li M L, Yang T A, et al. Study on distribution characteristics of selenium content of surface soil and its influencing factors in Enshi city,Hubei province[J]. Resources Environment & Engineering, 2015,29(6):825-829.
Guo Y, Bao Z Y, Ma Z Z, et al. Geochemical characteristics of selenium in the soil-plants system of Enshi area, Hubei Province[J]. Geological Bulletin of China, 2012,31(1):151-155.
Zhu J M, Zuo W, Qin H B, et al. An investigation on the source of soil Se in Yutangba Enshi: evidence from natural selenium[J]. Acta Mineralogica Sinica, 2008,28(4):397-400.
[12]
Zhu J M, Zuo W, Liang X B, et al. Occurrence of native selenium in Yutangba and its environmental implications[J]. Applied Geochemistry, 2004,19:461-467.
Yuan Z Y, Xiang J Q, Wu D M, et al. The characteristics of selenium and cadmium in crops and its root soil in the area of Se and Cd-enriched soil in Enshi[J]. Resources Environment & Engineering, 2017,31(6):706-712.
Zhang G D, Ge X L, Zhang Q L, et al. Selenium geological and geochemical environmental background in Enshi,Hubei[J]. Acta Geoscientia Sinica, 1998(1):59-67.
[15]
中国土壤元素背景值[M]. 北京: 中国环境科学出版社, 1990.
[15]
Chinese soil element background value[M]. Beijing: China Environmental Science Press, 1990.
[16]
谭见安. 中华人民共和国地方病与环境图集[M]. 北京: 科学出版社, 1989.
[16]
Tan J A. Atlas of local diseases and environment of China[M]. Beijing: Science Press, 1989.
Ministry of Ecology and Environment of the People’s Republic of China. GB 15618-2018 Soil environmental quality screening value of soil pollution tisk for agricultural land (trial)[S]. 2018.
[18]
Qin H B, Zhu J M, Su H. Selenium fractions in organic matter from Se-rich soils and weathered stone coal in selenosis areas of China[J]. Chemosphere, 2012(86):626-633.
Zhu J M. Occurrence of selenium in black selenium-enriched rock in Yutangba and its effect on local environment[D]. Guiyang: Institute of Geochemistry,Chinese Academy of Sciences, 2001.
Zhu J M, Qin H B, Li L, et al. Fractionation of selenium in high-Se soils from Yutangba, Enshi, Hubei[J]. Acta Scientiae Circumstantiae, 2008,28(4):772-777.
Wang F, Lu L, Kang J, et al. Study on the Occurrence of Selenium in Yutangba of Enshi[J]. Resources Environment & Engineering, 2016,30(2):244-247.
[22]
Li Z, Liang D L, Peng Q, et al. Interaction between selemium and soil organic matter and its impact on soil selenium bioavailability:A review[J]. Geoderma, 2017,295:69-79.
Han W L, Zhu J M, Qin H B, et al. Selenium Speciation in Se-rich Rocks at Yutangba[J]. Acta Mineralogica Sinica, 2007,27(1):89-95.
[24]
Cary E E, Gissel-Nielsen G. Effect of fertilizer anions on the solubility of native and applied selenium in soil[J]. Soil Science Society of America Journal, 1973,37(4):187-190.
Wang Y P, Zhang L, Cui Y J, et al. Characteristics of selenium content in soil of eastern Baoqing County and its relationship with soil properties[J]. Geophysical and Geochemical Exploration, 2019,43(4):904-911.
Yang Z F, Chen Y L, Qian X, et al. A study of the effect of soil pH on chemical species of cadmium by simulated experiments. Earth Science Frontiers, 2005,12(1):252-260.
Zhang Y F, Miao G W, Ma Q, et al. Distribution characteristics of Se speciation of alkaline soil in eastern Qinghai[J]. Geophysical and Geochemical Exploration, 2019,43(5):1138-1144.
Mao D J, Zheng B S, Yan W X. Contents of selenium and cadmium in soils of coal in the south of Hubei Province[J]. Hubei Journal of Preventive Medicine, 1999,10(2):1-2.
Niu L P. Study on the combined toxicity of 29 pairs of metal compounds on free hepatocytes in rats[J]. Journal of environment and health, 1995,12(2):55-56.
Yang Z F. Achievement report of the second project of 1∶50,000 land quality geochemical survey and risk assessment in the heavy metal high background area of Hunan and Hubei[R]. China University of Geosciences(Beijing) 2019.
[32]
杨克敌. 微量元素与健康[M]. 北京: 科学出版社, 2003.
[32]
Yang K D. Trace elements and health[M]. Beijing: Science Press, 2003.
Study on the characteristics of selenium-rich soil geological environment with high contents of cadmium and its ecological effects[J]. Earth and environment, 2012,40(3):354-360.