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物探与化探  2022, Vol. 46 Issue (2): 511-517    DOI: 10.11720/wtyht.2022.1242
  生态地质调查 本期目录 | 过刊浏览 | 高级检索 |
洛阳市伊川县鸦岭镇—汝阳县小店镇一带表层土壤硒形态研究
侯进凯1,2(), 宋延斌1,2, 朱瑞祯1,2, 莘丰培1,2, 周建川1,2, 鲁富兰1,2, 姚婕1,2
1.河南省地质矿产勘查开发局 第一地质矿产调查院,河南 洛阳471023
2.河南省金银多金属成矿系列与深部预测重点实验室,河南 洛阳471023
Selenium speciation in surface soil in Yaling Town, Yichuan County—Xiaodian Town,Ruyang County in Luoyang City
HOU Jin-Kai1,2(), SONG Yan-Bin1,2, ZHU Rui-Zhen1,2, XIN Feng-Pei1,2, ZHOU Jian-Chuan1,2, LU Fu-Lan1,2, YAO Jie1,2
1. No. 1 Geology and Mineral Resources Survey Institute,Henan Bureau of Geology and Mineral Development,Luoyang 471023,China
2. Gold and Silver Polymetallic Metallogenic Series and Deep Prediction Key Laboratory in Henan Province,Luoyang 471023,China
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摘要 

以洛阳市伊川县鸦岭镇—汝阳县小店镇一带土壤为研究对象,通过表层土壤样品的采集和分析,研究了土壤中硒的形态特征及其影响因素。结果表明,研究区表层土壤中硒的赋存形态以腐殖酸态、残渣态和强有机态为主,水溶态硒和离子交换态硒之和仅占总硒的2.70%,具有水溶态硒含量水平较低,而有机态硒占总硒比例显著高的特征。土壤总硒含量、酸碱度、有机质含量及土壤类型均对土壤中硒的赋存形态有影响。碱性环境土壤中硒有效态量占总硒比例明显高于中性环境和酸性环境土壤;土壤中硒有效态量随着土壤pH值升高而呈增加趋势。土壤中有机质含量对有机态硒影响最显著,而对有效态硒影响不明显。不同土壤类型中,水溶态硒和离子交换态硒之和占总硒比例表现为红黏土>水稻土>褐土>粗骨土>潮土>砂浆黑土。

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侯进凯
宋延斌
朱瑞祯
莘丰培
周建川
鲁富兰
姚婕
关键词 洛阳市表层土壤硒形态影响因素    
Abstract

Surface soil samples in Yaling Town, Yichuan County -Xiaodian Town, Ruyang County in Luoyang City were collected and analyzed to study the selenium (Se) speciation and its influencing factors. The study results are as follows. Existing Se in the surface soil of the study area mainly occurs in humic acid, residue, and strong organic states, while the sum of Se in water-soluble and ion-exchange states only accounts for 2.70% of total Se in the surface soil. Therefore, the Se in the study area shows the characteristics of the low content of water-soluble Se and a significantly high proportion of organic Se in total Se. The Se speciation in the surface soil is affected by the total Se content, pH, organic matter content, and type of soil. Specifically, the proportion of bioavailable Se in alkaline soil is significantly higher than that in neutral and acidic soils, and the bioavailable selenium content increases with increasing soil pH. Especially, the organic matter content in the soil has the most significant effects on organic Se but has no significant effect on bioavailable Se. For different types of soils, the proportion of the sum of Se in water-soluble and ionic-exchange states in total Se is in the order of red clay>paddy soil>brown soil>skeleton soil>fluvo-aquic soil>lime concretion black soil.

Key wordsLuoyang    surface soil    selenium speciation    influencing factor
收稿日期: 2021-04-27      修回日期: 2021-08-18      出版日期: 2022-04-20
ZTFLH:  P632  
基金资助:洛阳市硒资源详查项目(洛公交易采购[2018]053号)
作者简介: 侯进凯(1978-),男,河南滑县人,硕士,主要从事生态地球化学、地质矿产等方面的工作。Email: 420974022@qq.com
引用本文:   
侯进凯, 宋延斌, 朱瑞祯, 莘丰培, 周建川, 鲁富兰, 姚婕. 洛阳市伊川县鸦岭镇—汝阳县小店镇一带表层土壤硒形态研究[J]. 物探与化探, 2022, 46(2): 511-517.
HOU Jin-Kai, SONG Yan-Bin, ZHU Rui-Zhen, XIN Feng-Pei, ZHOU Jian-Chuan, LU Fu-Lan, YAO Jie. Selenium speciation in surface soil in Yaling Town, Yichuan County—Xiaodian Town,Ruyang County in Luoyang City. Geophysical and Geochemical Exploration, 2022, 46(2): 511-517.
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https://www.wutanyuhuatan.com/CN/10.11720/wtyht.2022.1242      或      https://www.wutanyuhuatan.com/CN/Y2022/V46/I2/511
Fig.1  研究区土壤类型和采样点位
指标 总硒 水溶态 离子交换态 碳酸盐态 腐殖酸态 铁锰氧化物态 强有机态 残渣态
平均值/10-9 355.2 3.11 6.48 4.55 115.99 7.18 92.61 110.71
变异系数(CV) 0.363 0.575 0.357 0.486 0.223 0.231 0.751 0.342
占比/% 95.89 0.88 1.82 1.28 32.65 2.02 26.07 31.17
Table 1  土壤中各形态硒含量特征值统计
指标 水溶态 离子交换态 碳酸盐态 腐殖酸态 铁锰氧化物态 强有机态 残渣态
总硒 0.020 -0.263 0.413* 0.856** 0.641** 0.925** 0.838**
pH值 0.400* 0.571** 0.329 -0.352 0.082 -0.438* -0.382*
有机质 0.019 -0.143 0.152 0.615** 0.436* 0.677** 0.439*
Table 2  总硒含量、有机质、pH值与各形态硒含量相关系数统计
指标 总硒 水溶态 离子交换态 碳酸盐态 腐殖酸态 铁锰氧化物态 强有机态 残渣态
酸性 平均值/10-9 491.0 1.50 4.68 2.74 139.15 6.37 169.40 142.96
占比/% 0.31 0.95 0.56 28.34 1.30 34.50 29.12
中性 平均值/10-9 365.9 2.08 4.52 4.04 113.64 7.23 104.93 112.60
占比/% 0.57 1.23 1.10 31.06 1.97 28.68 30.78
碱性 平均值/10-9 329.3 3.80 7.59 5.05 113.32 7.29 75.31 104.83
占比/% 1.15 2.31 1.53 34.42 2.21 22.87 31.84
Table 3  不同酸碱度土壤中各形态硒含量特征值统计
指标 潮土 粗骨土 褐土 红黏土 砂浆黑土 水稻土
总硒 平均值/10-9 375.0 348.5 341.7 278.0 462.5 360.0
水溶态 平均值/10-9 2.89 2.61 3.12 3.84 4.06 4.00
占比/% 0.77 0.75 0.91 1.38 0.88 1.11
离子交换态 平均值/10-9 4.98 6.20 7.28 9.15 4.80 7.13
占比/% 1.33 1.78 2.13 3.29 1.04 1.98
碳酸盐态 平均值/10-9 3.48 5.11 4.19 4.25 7.78 4.36
占比/% 0.93 1.47 1.23 1.53 1.68 1.21
腐殖酸态 平均值/10-9 116.28 115.18 113.43 112.48 130.10 120.50
占比/% 31.01 33.05 33.20 40.46 28.13 33.47
铁锰氧化物态 平均值/10-9 7.64 7.28 6.36 7.94 7.30 8.66
占比/% 2.04 2.09 1.86 2.86 1.58 2.41
强有机态 平均值/10-9 122.46 73.98 90.92 27.50 165.33 78.50
占比/% 32.66 21.23 26.61 9.89 35.75 21.81
残渣态 平均值/10-9 99.10 126.82 107.04 105.50 104.20 111.26
占比/% 26.43 36.39 31.33 37.95 22.53 30.91
Table 4  不同土壤类型中各形态硒含量特征值统计
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