Vertical distribution of elements in soil profiles in Longhai,Fujian Province
LIU Yin-Fei1,2,3, SUN Bin-Bin1,2,3, HE Ling2,3, ZENG Dao-Ming2,3, LIU Zhan-Yuan2,3, ZHOU Guo-Hua2,3
1. School of Earth Sciences and Resources, China University of Geosciences(Beijing), Beijing 100083, China;
2. Institute of Geophysical and Geochemical Exploration, CAGS, Langfang 065000, China;
3. Key Laboratory for Geochemical Exploration Technology, MLR, Langfang 065000, China
Based on geochemical data collected along four profiles at different types of geological setting and soil parent materials from Longhai, Fujian Province, the authors studied the concentrations and distribution patterns of major elements and trace elements. The results show that chemical weathering is intense. A lot of elements such as Ca, Mg, Na, Si and K have been seriously leached, but Fe and Al have been accumulated. The weathering-leaching index (ba value) and the ratio of Si to Fe and Al (Saf value) of the study area under the warm and humid subtropical condition are much lower than the average values of the whole country. The weathering degree has reached the stage of Si loss and Al-Fe enrichment, especially for the soils derived from granite rocks. Soil environmental quality is quite good due to its relative low concentration of heavy metals. It is found that the concentrations of trace elements including heavy metals are mainly controlled by the parent materials, and their vertical distribution along these profiles is mainly controlled by major components and organic carbon, indicating significant correlation between them. The concentrations of trace elements along profile 1 derived from alluvial and marine sediments are much higher than those of other three profiles. The relative low concentrations of Fe, Al as well as heavy metals may be attributed to the leaching of fine clay particles by surface runoff and infiltration. Several kinds of heavy metals such as Hg, Cd, Pb and Zn show accumulation in top soils under bio-geochemical cycle and human activities. The relative enrichment factors of most heavy metals are less than 1, which means that the anthropogenic influence are not serious except for Hg and P.
刘银飞, 孙彬彬, 贺灵, 曾道明, 刘占元, 周国华. 福建龙海土壤垂向剖面元素分布特征[J]. 物探与化探, 2016, 40(4): 713-721.
LIU Yin-Fei, SUN Bin-Bin, HE Ling, ZENG Dao-Ming, LIU Zhan-Yuan, ZHOU Guo-Hua. Vertical distribution of elements in soil profiles in Longhai,Fujian Province. Geophysical and Geochemical Exploration, 2016, 40(4): 713-721.
[1] 周国华.土壤重金属生物有效性研究进展[J].物探与化探,2014,38(6):1097-1106.
[2] 赵志忠,毕华,唐少霞,等.海南岛西部地区砖红壤中常、微量元素的垂向分异研究[J].海南师范学院学报,2004,17(4):370-377.
[3] 迟清华,嫣明才.应用地球化学元素丰度数据手册[M].北京:地质出版社,2007.
[4] 国家环境保护局.GB15618-1995土壤环境质量标准[S].北京:中国环境科学出版社,1995.
[5] 李家熙,吴功建.中国生态环境地球化学图集[M].北京:地质出版社,1999:209.
[6] 王海容,侯青叶,杨忠芳,等.广东省典型花岗岩成土剖面元素垂向分布特征[J].中国地质,2013,40(2):619-628.
[7] 吴宏伟,尚彦军,曲永新,等.香港花岗岩风化分级化学指标体系与风化壳分带[J].工程地质学报,1999,7(2):125-134.
[8] 刘英俊,曹励明,李兆鳞,等.元素地球化学[M].北京:科学出版社,1984.
[9] Middelburg J J,Cornelis H,Woittiez J R W,et al.Chemical processes affecting the mobility of major, minor and trace elements during weathering of granitic rocks[J]. Chemical Geology, 1988, 68:253-273.
[10] 王云,魏复盛.土壤环境元素化学[M].北京:中国环境科学出版社,1995:394.
[11] Caillaud J, Proust D, Philippe S. Trace metals distribution from a serpentinite weathering at the scales of the weathering profiles and its related weathering microsystems and clay minerals[J]. Geoderma, 2009, 149:199-208.
[12] Zhang X P, Deng W, Yang X M. The background concentrations of 13 soil trace elements and their relationships to parent materials and vegetation in Xizang(Tibet), China[J]. Journal of Asian Earth Sciences, 2002, 21:167-174.
[13] 王存龙,赵西强,蒋文惠,等. 山东省乐陵-河口地区重金属污染现状与分布迁移规律[J].物探与化探,2012,36(3):435-440.
[14] Bo P, Zhao L, Song X L, et al. Release of heavy metals during weathering of the lower ambrian Black Shales in western Hunan, China[J]. Environmental Geology, 2004,45:1137-1147.
[15] 沈骁,姬丙艳,田兴元,等. 青海东部地区土壤重金属污染评价[J].物探与化探,2014,38(6):1246-1251.
[16] 朱丽东,周尚哲,李凤全,等.金衢盆地TX红土剖面元素迁移特征[J].海洋地质与第四纪地质,2007,27(1):117-123.
[17] 张引娥.重金属元素在厦门-漳州土壤剖面中的分布特征及其环境意义[J].地球与环境,2013,41(1):13-19.
[18] 李春亮,刘文辉.甘肃省白银市区土壤环境质量评价[J].物探与化探,2012,36(6):1014-1019.
[19] 赵卫红.福建省酸雨变化及成因[J].福建地质,2004,19(4):1-10.
[20] 毛大发,嫣新华,谢勇,等. 鄱阳湖周边地区土壤垂向剖面地球化学特征及第Ⅰ环境深度[J].物探与化探,2005,19(2):101-104.
