土壤硒富集空间分布特征及影响因素研究
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摘要
以揭阳市土壤为对象,系统采集了表层土壤样(0～20 cm)1 330个和深层土壤样(150～200 cm)331个,并利用相关性分析、回归分析、方差分析及GIS空间分析技术等方法对土壤硒的含量分布、富集特征及影响因素进行了系统的分析。结果表明,揭阳市表层土壤Se含量处于0.02～2.01 mg/kg之间,几何平均值为0.48 mg/kg,是中国土壤Se平均含量的1.66倍。揭阳市土壤总体呈足硒及富硒特征,不存在硒过剩,极少区域土壤呈硒缺乏特征,表层与深层土壤表现基本一致,富硒土壤主要分布于普宁市、惠来县及北部边缘。表层土壤中Se富集面积达到52.03%,但在空间上分布零散,这可能与母质、土壤类型等因素有关。强富集区域集中分布于花岗岩与粉砂岩为母质的土壤区,而大部分由第四纪冲积物形成的土壤无富集。方差分析表明:不同母质、土壤类型及土地利用方式对土壤Se的含量及富集水平均造成不同程度的影响,其中影响揭阳市表层土壤Se含量的主要因素为成土母质。除此之外,土壤理化性质及海拔也是影响揭阳市表层土壤Se富集的重要因素。回归分析表明表层土壤Se与pH值呈极显著的负相关,并且分别与有机碳、Fe_2O_3及Al_2O_3呈极显著线性正相关。
Selenium(Se), a trace element in the soil, is mainly ingested by the human body from the soil-plant system through food chain. Meanwhile, Se in the soil is subjected to geological, geographical environmental factors and soil properties. Therefore, it is essential to study contents and distributions of Se in the soil for developing Se-enriched agricultural products and protecting human health. Jieyang City is one of distinctive agriculture areas of Guangdong Province, China, and the status of soil Se has an important impact on the development of local distinctive agriculture. Based on the above reasons, a total of 1 330 topsoil samples(0-20 cm) and 331 deep soil samples(150-200 cm) were collected systematically from Jieyang City to discuss the distribution, enrichment characteristics and influencing factors(including parent materials, soil types, land using types, soil physicochemical properties and elevation) of soil Se. Results showed that contents of Se in topsoil ranged from 0.02 to 2.01 mg/kg with a geometric mean value of 0.48 mg/kg that was 1.66 times larger than the average Se contents of soil in China. The topsoils of Jieyang City were in the category of Se sufficiency and Se abundance on the whole. According to the spatial distribution derived by the Kriging interpolation, soils of Se abundance were mainly distributed in Puning, Huilai and northern edge of Jieyang City. The Se enrichment area in the topsoil reached 52.03% of Jieyang City, but the spatial distribution was scattered, which may be related to factors such as parent materials and soil types. Strong Se enrichment soils were mainly distributed in the areas of granite and siltstone, while most of the soil which came from quaternary alluvial deposits was not enriched. Analysis of variance showed that different parent materials, soil types and land use patterns had different effects on soil Se contents and enrichment. The main factor affecting Se contents in surface soil of Jieyang City was soil parent materials. The soils which derived from mudstone and tuff were more likely to enrich Se. Among different land use types, farmland had great influences on soil Se content due to long-term agricultural activities. Among different soil types, yellow soil and latosolic red soil were easy to enrich Se due to their high contents of organic matter. Although soil Se content differed among different land use types, it was not obvious that soil Se was affected by human activities in Jieyang City. In addition, the physicochemical properties of soil and altitude were also important factors of leading to Se enrichment in the topsoil of Jieyang City. Regression analysis showed that there was a significantly negative correlation between Se and pH(P < 0.01), and Se was significantly positively correlated with TOC(P < 0.01), Fe_2O_3(P < 0.01) and Al_2O_3(P < 0.01) in the topsoil. Spearman correlation analysis showed that the Se content in the topsoil of Jieyang City had a significantly positive correlation with elevation(P < 0.01). The higher elevation, the soil Se was more easily enriched. Thus, in the development process of distinctive agriculture in Jieyang City, it is recommended to rationally use Se-enriched soils, plant Se-enriched crops, and promote the development of local distinctive agriculture in accordance with the principle of adapting to local conditions.
Selenium(Se), a trace element in the soil, is mainly ingested by the human body from the soil-plant system through food chain. Meanwhile, Se in the soil is subjected to geological, geographical environmental factors and soil properties. Therefore, it is essential to study contents and distributions of Se in the soil for developing Se-enriched agricultural products and protecting human health. Jieyang City is one of distinctive agriculture areas of Guangdong Province, China, and the status of soil Se has an important impact on the development of local distinctive agriculture. Based on the above reasons, a total of 1 330 topsoil samples(0-20 cm) and 331 deep soil samples(150-200 cm) were collected systematically from Jieyang City to discuss the distribution, enrichment characteristics and influencing factors(including parent materials, soil types, land using types, soil physicochemical properties and elevation) of soil Se. Results showed that contents of Se in topsoil ranged from 0.02 to 2.01 mg/kg with a geometric mean value of 0.48 mg/kg that was 1.66 times larger than the average Se contents of soil in China. The topsoils of Jieyang City were in the category of Se sufficiency and Se abundance on the whole. According to the spatial distribution derived by the Kriging interpolation, soils of Se abundance were mainly distributed in Puning, Huilai and northern edge of Jieyang City. The Se enrichment area in the topsoil reached 52.03% of Jieyang City, but the spatial distribution was scattered, which may be related to factors such as parent materials and soil types. Strong Se enrichment soils were mainly distributed in the areas of granite and siltstone, while most of the soil which came from quaternary alluvial deposits was not enriched. Analysis of variance showed that different parent materials, soil types and land use patterns had different effects on soil Se contents and enrichment. The main factor affecting Se contents in surface soil of Jieyang City was soil parent materials. The soils which derived from mudstone and tuff were more likely to enrich Se. Among different land use types, farmland had great influences on soil Se content due to long-term agricultural activities. Among different soil types, yellow soil and latosolic red soil were easy to enrich Se due to their high contents of organic matter. Although soil Se content differed among different land use types, it was not obvious that soil Se was affected by human activities in Jieyang City. In addition, the physicochemical properties of soil and altitude were also important factors of leading to Se enrichment in the topsoil of Jieyang City. Regression analysis showed that there was a significantly negative correlation between Se and pH(P < 0.01), and Se was significantly positively correlated with TOC(P < 0.01), Fe_2O_3(P < 0.01) and Al_2O_3(P < 0.01) in the topsoil. Spearman correlation analysis showed that the Se content in the topsoil of Jieyang City had a significantly positive correlation with elevation(P < 0.01). The higher elevation, the soil Se was more easily enriched. Thus, in the development process of distinctive agriculture in Jieyang City, it is recommended to rationally use Se-enriched soils, plant Se-enriched crops, and promote the development of local distinctive agriculture in accordance with the principle of adapting to local conditions.
引文
[1]Jing W,Li H,Li Y,et al.Speciation,distribution,and bioavailability of soil selenium in the Tibetan Plateau Kashin-Beck disease area:A case study in Songpan County Sichuan Province,China[J].Biological Trace Element Research,2013,156(1/2/3):367-375.
[2]Schomburg L,K?hrle J.On the importance of selenium and iodine metabolism for thyroid hormone biosynthesis and human health[J].Molecular Nutrition and Food Research,2010,52(11):1235-1246.
[3]Tan J,Wang W,Zhu Z,et al.Selenium in environment and Kaschin-Beck disease[J].Acta Geochimica,1988,7(3):273-280.
[4]李家熙,张光弟,葛晓立,等.人体硒缺乏与过剩的地球化学环境特征及其预测[M].北京:地质出版社,2000.
[5]Rayman M P.Selenium in cancer prevention:A review of the evidence and mechanism of action[J].Proceedings of the Nutrition Society,2005,64(4):527-542.
[6]薛瑞玲,梁东丽,王松山,等.外源亚硒酸盐和硒酸盐在土壤中的价态转化及其生物有效性[J].环境科学,2011,32(6):1726-1733.Xue Ruiling,Liang Dongli,Wang Songshan,et al.Valence state changes and bioavailability of selenium in soil treated with selenite and selenate[J].Environmental Science,2011,32(6):1726-1733.(in Chinese with English abstract)
[7]Jarzyńska G,Falandysz J.Selenium and 17 other largely essential and toxic metals in muscle and organ meats of Red Deer(Cervus elaphus)--consequences to human health[J].Environment Intertational,2011,37(5):882-888.
[8]乔虹,尹佳茗,姜峰,等.桑肠杆菌菌株的富硒特性及其喷施对玉米籽粒的硒素强化[J].农业工程学报,2018,34(17):284-290.Qiao Hong,Yin Jiaming,Jiang Feng,et al.Se-enrichment characteristics of enterobacter mori and its Se strengthening effect on corn grain[J].Transactions of the Chinese Society of Agricultural Engineering(Transactions of the CSAE),2018,34(17):284-290.(in Chinese with English abstract)
[9]邵亚,王毅伟,蔡崇法,等.西南典型岩溶区土壤硒空间分布预测[J].农业工程学报,2016,32(22):178-183.Shao Ya,Wang Yiwei,Cai Chongfa,et al.Prediction on spatial distribution of soil selenium in typical karst area of southwest China[J].Transactions of the Chinese Society of Agricultural Engineering(Transactions of the CSAE),2016,32(22):178-183.(in Chinese with English abstract)
[10]章海波,骆永明,吴龙华,等.香港土壤研究Ⅱ.土壤硒的含量?分布及其影响因素[J].土壤学报,2005,42(3):404-410.Zhang Haibo,Luo Yongming,Wu Longhua,et al.Hong Kong soil researchesⅡ.distribution and content of selenium in soils[J].Acta Pedologica Sinica,2005,42(3):404-410.(in Chinese with English abstract)
[11]商靖敏,罗维,吴光红,等.洋河流域不同土地利用类型土壤硒(Se)分布及影响因素[J].环境科学,2015,36(1):301-308.Shang Jingmin,Luo Wei,Wu Guanghong,et al.Spatial distribution of Se in soils from different land use types and its influencing factors within the Yanghe Watershed,China[J].Environmental Science,2015,36(1):301-308.(in Chinese with English abstract)
[12]Jiang Y,Chao S,Liu J,et al.Source apportionment and health risk assessment of heavy metals in soil for a township in Jiangsu Province,China[J].Chemosphere,2017,168:1658-1668.
[13]郦逸根,董岩翔,郑洁,等.浙江富硒土壤资源调查与评价[J].第四纪研究,2005,25(3):323-330.Li Yigen,Dong Yanxiang,Zheng Jie,et al.Selenium:Abundant soil survey and assessment in Zhejiang[J].Quaternary Sciences,2005,25(3):323-330.(in Chinese with English abstract)
[14]Szolnoki Z,Farsang A,Puskás I.Cumulative impacts of human activities on urban garden soils:Origin and accumulation of metals[J].Environmental Pollution,2013,177(4):106-115.
[15]雷志栋,杨诗秀,许志荣,等.土壤特性空间变异性初步研究[J].水利学报,1985(9):12-23.Lei Zhidong,Yang Shixiu,Xu Zhirong,et al.Preliminary investigation of the spatial variability of soil properties[J].Journal of Hydraulic Engineering,1985(9):12-23.(in Chinese with English abstract)
[16]徐文,唐文浩,邝春兰,等.海南省土壤中硒含量及影响因素分析[J].安徽农业科学,2010,38(6):3026-3027.Xu Wen,Tang Wenhao,Kuang Chunlan,et al.Analysis on content of Se in soil of Hainan Province and its influencing factors[J].Journal of Anhui Agricultural Sciences,2010,38(6):3026-3027.(in Chinese with English abstract)
[17]郑涛,吴承龙,马友华,等.石台县天然富硒大米产业现状与发展[J].中国稻米,2017,23(5):114-117.Zheng Tao,Wu Chenglong,Ma Youhua,et al.Status and development of natural se-enriched rice industry in Shitai County[J].China Rice,2017,23(5):114-117.(in Chinese with English abstract)
[18]郭莉,杨忠芳,阮起和,等.北京市平原区土壤中硒的含量和分布[J].现代地质,2012,26(5):859-864.Guo Li,Yang Zhongfang,Ruan Qihe,et al.Content and distribution of selenium in soil of Beijing plain[J].Geoscience,2012,26(5):859-864.(in Chinese with English abstract)
[19]迟凤琴,徐强,匡恩俊,等.黑龙江省土壤硒分布及其影响因素研究[J].土壤学报,2016,53(5):1262-1274.Chi Fengqin,Xu Qiang,Kuang Enjun,et al.Distribution of selenium and its inlfuencing factors in soils of Heilongjiang Province,China[J].Acta Pedologica Sinica,2016,53(5):1262-1274.(in Chinese with English abstract)
[20]张晓平,张玉霞.西藏土壤中硒的含量及分布[J].土壤学报,2000,37(4):558-562.Zhang Xiaoping,Zhang Yuxia.Content and distribution of selenium in soils of Tibet[J].Acta Pedologica Sinica,2000,37(4):558-562.(in Chinese with English abstract)
[21]刘铮.中国土壤微量元素[M].南京:江苏科学技术出版社,1996.
[22]Fordyce F.Selenium deficiency and toxicity in the environment[M].Essentials of Medical Geology Netherlands:Springer,2013:375-416.
[23]Rudnick R L,Gao S.Composition of the continental crust[M].London:Treatise on Geochemistry,2014:4-6.
[24]Stroud J L,Mcgrath S P,Zhao F J.Selenium speciation in soil extracts using LC-ICP-MS[J].International Journal of Environmental Analytical Chemistry,2012,92(2):222-236.
[25]刘子宁,窦磊,游远航.珠江三角洲台山地区硒的地球化学特征[J].现代地质,2014,28(5):928-934.Liu Zining,Dou Lei,You Yuanhang.Geochemical characteristics of selenium in Taishan region of Pearl River Delta[J].Geoscience,2014,28(5):928-934.(in Chinese with English abstract)
[26]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,1989:39.
[27]吴文斌,杨鹏,唐华俊,等.土地利用对土壤性质影响的区域差异研究[J].中国农业科学,2007,40(8):1697-1702.Wu Wenbin,Yang Peng,Tang Huajun,et al.Regional variability of effects of land use system on soil properties[J].Scientia Agricultura Sinica,2007,40(8):1697-1702.(in Chinese with English abstract)
[28]赵少华,宇万太,张璐,等.环境中硒的生物地球化学循环和营养调控及分异成因[J].生态学杂志,2005,24(10):1197-1203.Zhao Shaohua,Yu Wantai,Zhang Lu,et al.Biogeochemical cycling of selenium,nutrition adjustment and differentiation cause in environment[J].Chinese Journal of Ecology,2005,24(10):1197-1203.(in Chinese with English abstract)
[29]Perkins W T.Extreme selenium and tellurium contamination in soils--an eighty year-old industrial legacy surrounding a Ni refinery in the Swansea Valley[J].Science of the Total Environment,2011,412:162-169.
[30]李杰,杨志强,刘枝刚,等.南宁市土壤硒分布特征及其影响因素探讨[J].土壤学报,2012,49(5):1012-1020.Li Jie,Yang Zhiqiang,Liu Zhigang,et al.Distribution of selenium in soils of Nanjing City and its influencing factors[J].Acta Pedologica Sinica,2012,49(5):1012-1020.(in Chinese with English abstract)
[31]朱建明,梁小兵,凌宏文,等.环境中硒存在形式的研究现状[J].矿物岩石地球化学通报,2003,22(1):75-81.Zhu Jianming,Liang Xiaobing,Ling Hongwen,et al.Advances in studying occurrence modes of selenium in environment[J].Bulletin of Mineralogy,Petrology and Geochemistry,2003,22(1):75-81.(in Chinese with English abstract)
[32]Kausch M F,Pallud C E.Modeling the impact of soil aggregate size on selenium immobilization[J].Biogeosciences,2013,9(9):1323-1336.
[33]李永华,王五一,杨林生,等.陕南土壤中水溶态硒?氟的含量及其在生态环境的表征[J].环境化学,2005,24(3):279-283.Li Yonghua,Wang Wuyi,Yang Linsheng,et al.Concentration and environmental significance of water soluble-Se and water soluble-F in soils of south Shaanxi Province[J].Environmental Chemistry,2005,24(3):279-283.(in Chinese with English abstract)
[34]杨良策,李明龙,杨廷安,等.湖北省恩施市表层土壤硒含量分布特征及其影响因素研究[J].资源环境与工程,2015,29(6):825-829.Yang Liangce,Li Minglong,Yang Ting’an,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.(in Chinese with English abstract)
[35]戴慧敏,宫传东,董北,等.东北平原土壤硒分布特征及影响因素[J].土壤学报,2015,52(6):1356-1364.Dai Huimin,Gong Chuandong,Dong Bei,et al.Disribution of soil selenium in the northeast China plain and its influencing factors[J].Acta Pedologica Sinica,2015,52(6):1356-1364.(in Chinese with English abstract)
[36]黄春雷,宋明义,魏迎春.浙中典型富硒土壤区土壤硒含量的影响因素探讨[J].环境科学,2013,34(11):4405-4410.Huang Chunlei,Song Mingyi,Wei Yingchun.Study on selenium contents of typical selenium-rich soil in the middle area of Zhejiang and its influencing factors[J].Environmental Science,2013,34(11):4405-4410.(in Chinese with English abstract)
[37]郑达贤,李日邦,谭见安.土壤-植物系统硒传输研究Ⅰ.我国一些天然土壤中的硒[J].地理科学,1985,5(3):209-217.Zheng Daxian,Li Ribang,Tan Jian’an.A study on translation of selenium in soil-plant system[J].Scientia Geographica Sincia,1985,5(3):209-217.(in Chinese with English abstract)
[38]徐强,迟凤琴,匡恩俊,等.方正县土壤硒的分布特征及其与土壤性质的关系[J].土壤通报,2015,46(3):597-602.Xu Qiang,Chi Fengqin,Kuang Enjun,et al.Distribution characteristics of selenium in Fangzheng County and its relationship with soil properties[J].Chinese Journal of Soil Science,2015,46(3):597-602.(in Chinese with English abstract)
[39]席冬梅,邓卫东,毛华明.云南省主要反刍家畜饲养基地土壤硒含量?分布及其影响因素研究[J].云南农业大学学报,2007,22(4):531-536.Xi Dongmei,Deng Weidong,Mao Huaming,et al.A study on the contents and distribution a of selenium and its influencing factors in soils from main livestock feeding bases of Yunnan Province[J].Journal of Yunnan Agricultural Unversity,2007,22(4):531-536.(in Chinese with English abstract)
[40]Yu T,Yang Z,Lv Y,et al.The origin and geochemical cycle of soil selenium in a Se-rich area of China[J].Journal of Geochemical Exploration,2014,139(1):97-108.
[41]罗友进,韩国辉,孙协平,等.三峡库区(重庆段)土壤硒分布特征及影响因素[J].土壤,2018,50(1):131-138.Luo Youjin,Han Guohui,Sun Xieping,et al.Distribution of soil selenium in Three Gorges reservoir region(Chongqing section)and its influential factors[J].Soils,2018,50(1):131-138.(in Chinese with English abstract)
[2]Schomburg L,K?hrle J.On the importance of selenium and iodine metabolism for thyroid hormone biosynthesis and human health[J].Molecular Nutrition and Food Research,2010,52(11):1235-1246.
[3]Tan J,Wang W,Zhu Z,et al.Selenium in environment and Kaschin-Beck disease[J].Acta Geochimica,1988,7(3):273-280.
[4]李家熙,张光弟,葛晓立,等.人体硒缺乏与过剩的地球化学环境特征及其预测[M].北京:地质出版社,2000.
[5]Rayman M P.Selenium in cancer prevention:A review of the evidence and mechanism of action[J].Proceedings of the Nutrition Society,2005,64(4):527-542.
[6]薛瑞玲,梁东丽,王松山,等.外源亚硒酸盐和硒酸盐在土壤中的价态转化及其生物有效性[J].环境科学,2011,32(6):1726-1733.Xue Ruiling,Liang Dongli,Wang Songshan,et al.Valence state changes and bioavailability of selenium in soil treated with selenite and selenate[J].Environmental Science,2011,32(6):1726-1733.(in Chinese with English abstract)
[7]Jarzyńska G,Falandysz J.Selenium and 17 other largely essential and toxic metals in muscle and organ meats of Red Deer(Cervus elaphus)--consequences to human health[J].Environment Intertational,2011,37(5):882-888.
[8]乔虹,尹佳茗,姜峰,等.桑肠杆菌菌株的富硒特性及其喷施对玉米籽粒的硒素强化[J].农业工程学报,2018,34(17):284-290.Qiao Hong,Yin Jiaming,Jiang Feng,et al.Se-enrichment characteristics of enterobacter mori and its Se strengthening effect on corn grain[J].Transactions of the Chinese Society of Agricultural Engineering(Transactions of the CSAE),2018,34(17):284-290.(in Chinese with English abstract)
[9]邵亚,王毅伟,蔡崇法,等.西南典型岩溶区土壤硒空间分布预测[J].农业工程学报,2016,32(22):178-183.Shao Ya,Wang Yiwei,Cai Chongfa,et al.Prediction on spatial distribution of soil selenium in typical karst area of southwest China[J].Transactions of the Chinese Society of Agricultural Engineering(Transactions of the CSAE),2016,32(22):178-183.(in Chinese with English abstract)
[10]章海波,骆永明,吴龙华,等.香港土壤研究Ⅱ.土壤硒的含量?分布及其影响因素[J].土壤学报,2005,42(3):404-410.Zhang Haibo,Luo Yongming,Wu Longhua,et al.Hong Kong soil researchesⅡ.distribution and content of selenium in soils[J].Acta Pedologica Sinica,2005,42(3):404-410.(in Chinese with English abstract)
[11]商靖敏,罗维,吴光红,等.洋河流域不同土地利用类型土壤硒(Se)分布及影响因素[J].环境科学,2015,36(1):301-308.Shang Jingmin,Luo Wei,Wu Guanghong,et al.Spatial distribution of Se in soils from different land use types and its influencing factors within the Yanghe Watershed,China[J].Environmental Science,2015,36(1):301-308.(in Chinese with English abstract)
[12]Jiang Y,Chao S,Liu J,et al.Source apportionment and health risk assessment of heavy metals in soil for a township in Jiangsu Province,China[J].Chemosphere,2017,168:1658-1668.
[13]郦逸根,董岩翔,郑洁,等.浙江富硒土壤资源调查与评价[J].第四纪研究,2005,25(3):323-330.Li Yigen,Dong Yanxiang,Zheng Jie,et al.Selenium:Abundant soil survey and assessment in Zhejiang[J].Quaternary Sciences,2005,25(3):323-330.(in Chinese with English abstract)
[14]Szolnoki Z,Farsang A,Puskás I.Cumulative impacts of human activities on urban garden soils:Origin and accumulation of metals[J].Environmental Pollution,2013,177(4):106-115.
[15]雷志栋,杨诗秀,许志荣,等.土壤特性空间变异性初步研究[J].水利学报,1985(9):12-23.Lei Zhidong,Yang Shixiu,Xu Zhirong,et al.Preliminary investigation of the spatial variability of soil properties[J].Journal of Hydraulic Engineering,1985(9):12-23.(in Chinese with English abstract)
[16]徐文,唐文浩,邝春兰,等.海南省土壤中硒含量及影响因素分析[J].安徽农业科学,2010,38(6):3026-3027.Xu Wen,Tang Wenhao,Kuang Chunlan,et al.Analysis on content of Se in soil of Hainan Province and its influencing factors[J].Journal of Anhui Agricultural Sciences,2010,38(6):3026-3027.(in Chinese with English abstract)
[17]郑涛,吴承龙,马友华,等.石台县天然富硒大米产业现状与发展[J].中国稻米,2017,23(5):114-117.Zheng Tao,Wu Chenglong,Ma Youhua,et al.Status and development of natural se-enriched rice industry in Shitai County[J].China Rice,2017,23(5):114-117.(in Chinese with English abstract)
[18]郭莉,杨忠芳,阮起和,等.北京市平原区土壤中硒的含量和分布[J].现代地质,2012,26(5):859-864.Guo Li,Yang Zhongfang,Ruan Qihe,et al.Content and distribution of selenium in soil of Beijing plain[J].Geoscience,2012,26(5):859-864.(in Chinese with English abstract)
[19]迟凤琴,徐强,匡恩俊,等.黑龙江省土壤硒分布及其影响因素研究[J].土壤学报,2016,53(5):1262-1274.Chi Fengqin,Xu Qiang,Kuang Enjun,et al.Distribution of selenium and its inlfuencing factors in soils of Heilongjiang Province,China[J].Acta Pedologica Sinica,2016,53(5):1262-1274.(in Chinese with English abstract)
[20]张晓平,张玉霞.西藏土壤中硒的含量及分布[J].土壤学报,2000,37(4):558-562.Zhang Xiaoping,Zhang Yuxia.Content and distribution of selenium in soils of Tibet[J].Acta Pedologica Sinica,2000,37(4):558-562.(in Chinese with English abstract)
[21]刘铮.中国土壤微量元素[M].南京:江苏科学技术出版社,1996.
[22]Fordyce F.Selenium deficiency and toxicity in the environment[M].Essentials of Medical Geology Netherlands:Springer,2013:375-416.
[23]Rudnick R L,Gao S.Composition of the continental crust[M].London:Treatise on Geochemistry,2014:4-6.
[24]Stroud J L,Mcgrath S P,Zhao F J.Selenium speciation in soil extracts using LC-ICP-MS[J].International Journal of Environmental Analytical Chemistry,2012,92(2):222-236.
[25]刘子宁,窦磊,游远航.珠江三角洲台山地区硒的地球化学特征[J].现代地质,2014,28(5):928-934.Liu Zining,Dou Lei,You Yuanhang.Geochemical characteristics of selenium in Taishan region of Pearl River Delta[J].Geoscience,2014,28(5):928-934.(in Chinese with English abstract)
[26]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,1989:39.
[27]吴文斌,杨鹏,唐华俊,等.土地利用对土壤性质影响的区域差异研究[J].中国农业科学,2007,40(8):1697-1702.Wu Wenbin,Yang Peng,Tang Huajun,et al.Regional variability of effects of land use system on soil properties[J].Scientia Agricultura Sinica,2007,40(8):1697-1702.(in Chinese with English abstract)
[28]赵少华,宇万太,张璐,等.环境中硒的生物地球化学循环和营养调控及分异成因[J].生态学杂志,2005,24(10):1197-1203.Zhao Shaohua,Yu Wantai,Zhang Lu,et al.Biogeochemical cycling of selenium,nutrition adjustment and differentiation cause in environment[J].Chinese Journal of Ecology,2005,24(10):1197-1203.(in Chinese with English abstract)
[29]Perkins W T.Extreme selenium and tellurium contamination in soils--an eighty year-old industrial legacy surrounding a Ni refinery in the Swansea Valley[J].Science of the Total Environment,2011,412:162-169.
[30]李杰,杨志强,刘枝刚,等.南宁市土壤硒分布特征及其影响因素探讨[J].土壤学报,2012,49(5):1012-1020.Li Jie,Yang Zhiqiang,Liu Zhigang,et al.Distribution of selenium in soils of Nanjing City and its influencing factors[J].Acta Pedologica Sinica,2012,49(5):1012-1020.(in Chinese with English abstract)
[31]朱建明,梁小兵,凌宏文,等.环境中硒存在形式的研究现状[J].矿物岩石地球化学通报,2003,22(1):75-81.Zhu Jianming,Liang Xiaobing,Ling Hongwen,et al.Advances in studying occurrence modes of selenium in environment[J].Bulletin of Mineralogy,Petrology and Geochemistry,2003,22(1):75-81.(in Chinese with English abstract)
[32]Kausch M F,Pallud C E.Modeling the impact of soil aggregate size on selenium immobilization[J].Biogeosciences,2013,9(9):1323-1336.
[33]李永华,王五一,杨林生,等.陕南土壤中水溶态硒?氟的含量及其在生态环境的表征[J].环境化学,2005,24(3):279-283.Li Yonghua,Wang Wuyi,Yang Linsheng,et al.Concentration and environmental significance of water soluble-Se and water soluble-F in soils of south Shaanxi Province[J].Environmental Chemistry,2005,24(3):279-283.(in Chinese with English abstract)
[34]杨良策,李明龙,杨廷安,等.湖北省恩施市表层土壤硒含量分布特征及其影响因素研究[J].资源环境与工程,2015,29(6):825-829.Yang Liangce,Li Minglong,Yang Ting’an,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.(in Chinese with English abstract)
[35]戴慧敏,宫传东,董北,等.东北平原土壤硒分布特征及影响因素[J].土壤学报,2015,52(6):1356-1364.Dai Huimin,Gong Chuandong,Dong Bei,et al.Disribution of soil selenium in the northeast China plain and its influencing factors[J].Acta Pedologica Sinica,2015,52(6):1356-1364.(in Chinese with English abstract)
[36]黄春雷,宋明义,魏迎春.浙中典型富硒土壤区土壤硒含量的影响因素探讨[J].环境科学,2013,34(11):4405-4410.Huang Chunlei,Song Mingyi,Wei Yingchun.Study on selenium contents of typical selenium-rich soil in the middle area of Zhejiang and its influencing factors[J].Environmental Science,2013,34(11):4405-4410.(in Chinese with English abstract)
[37]郑达贤,李日邦,谭见安.土壤-植物系统硒传输研究Ⅰ.我国一些天然土壤中的硒[J].地理科学,1985,5(3):209-217.Zheng Daxian,Li Ribang,Tan Jian’an.A study on translation of selenium in soil-plant system[J].Scientia Geographica Sincia,1985,5(3):209-217.(in Chinese with English abstract)
[38]徐强,迟凤琴,匡恩俊,等.方正县土壤硒的分布特征及其与土壤性质的关系[J].土壤通报,2015,46(3):597-602.Xu Qiang,Chi Fengqin,Kuang Enjun,et al.Distribution characteristics of selenium in Fangzheng County and its relationship with soil properties[J].Chinese Journal of Soil Science,2015,46(3):597-602.(in Chinese with English abstract)
[39]席冬梅,邓卫东,毛华明.云南省主要反刍家畜饲养基地土壤硒含量?分布及其影响因素研究[J].云南农业大学学报,2007,22(4):531-536.Xi Dongmei,Deng Weidong,Mao Huaming,et al.A study on the contents and distribution a of selenium and its influencing factors in soils from main livestock feeding bases of Yunnan Province[J].Journal of Yunnan Agricultural Unversity,2007,22(4):531-536.(in Chinese with English abstract)
[40]Yu T,Yang Z,Lv Y,et al.The origin and geochemical cycle of soil selenium in a Se-rich area of China[J].Journal of Geochemical Exploration,2014,139(1):97-108.
[41]罗友进,韩国辉,孙协平,等.三峡库区(重庆段)土壤硒分布特征及影响因素[J].土壤,2018,50(1):131-138.Luo Youjin,Han Guohui,Sun Xieping,et al.Distribution of soil selenium in Three Gorges reservoir region(Chongqing section)and its influential factors[J].Soils,2018,50(1):131-138.(in Chinese with English abstract)