Distribution Characteristics of Soil Selenium and Its Influencing Factors in Tangchang Town of Chengdu City, Sichuan Province
-
摘要:
硒是人体必须的微量元素之一，食用含硒农产品是人体获取硒元素的重要途径。调查土壤硒的含量特征、划定富硒区、查明硒空间分布和迁移富集的影响因素，对富硒土地资源利用和富硒农产品开发具有重要意义。本文选择成都市唐昌镇采集土壤样品，采用原子荧光光谱法(AAS)和电感耦合等离子体发射光谱/质谱法(ICP-OES/MS)等方法测定土壤中的Se、As、总有机碳(TOC)等组分含量和pH值，运用方差分析、相关性分析、地理探测器等方法对土壤硒含量、分布特征及影响因素进行探讨。结果表明：①研究区土壤硒含量范围为0.082~1.10mg/kg，平均含量为0.337mg/kg，分别是成都市、四川省和全国土壤硒平均含量的1.47、4.02和1.16倍；②全镇99.2%的土壤硒呈足硒及富硒状态，且土壤硒含量随着深度增加总体呈降低趋势，空间分布上，高硒区整体呈北西向带状分布于战旗、柏木、大云和竹林等村落；③相关性分析表明土壤Pb、Cr、Ni、Cd、Hg、As、总钾(TK)、总氮(TN)、pH、TOC和海拔高度对土壤硒的富集迁移均有极为显著(P < 0.01)的影响，但影响程度不一；④地理探测器的因子探测发现，TOC对表层土壤硒的空间变异独立解释能力最大(0.29)，Zn次之(0.18)，第三是Cd(0.16)；交互探测发现，土壤TOC与其他17种影响因子交互作用的解释程度均在0.30以上，是表层土壤硒空间分异的主导因素。
Abstract:BACKGROUND Selenium is one of the essential trace elements for humans. Eating agricultural products containing selenium is an important way for humans to obtain selenium. It is of great significance for the utilization of selenium-enriched soil resources and the development of selenium-enriched agricultural products to investigate the content characteristics of soil selenium, delimit selenium-enriched soil areas, and determine the influencing factors of soil selenium spatial distribution, migration and enrichment.
OBJECTIVES To discuss the content, distribution characteristics and influencing factors of soil selenium in the study area.
METHODS Tangchang Town in the Pidu District of Chengdu City was chosen as the study area. 788 surface soil samples (0-20cm) and 46 profile soil samples (100-150cm) were collected. The pH values and contents of Se, As, Hg, Cu, Pb, Zn, Ni, Cr, CD, TP, TK, TN and TOC in soil were determined by AFS, XRF and ICP-MS/OES. Geostatistical analysis, variance analysis, correlation analysis and geographic detectors were applied to systematically determine the content, distribution characteristics and influencing factors of soil selenium.
RESULTS (1) Results showed that surface soil selenium content of Tangchang Town ranged from 0.082 to 1.10mg/kg, with an arithmetic mean value of 0.337mg/kg, which was 1.47, 4.02 and 1.16 times the average Se content of soil in Chengdu, Sichuan and China, respectively. (2) The Se-sufficient and Se-enriched topsoil reached 99.2% of Tangchang Town. In the profile soil samples, the soil selenium content decreased with increasing depth. In the spatial distribution, high selenium concentrate areas generally showed a northwest zonal distribution trend in Zhanqi Village, Baimu Village, Dayun Village, and Zhulin Village. (3) Correlation analysis showed that lead, chromium, nickel, cadmium, mercury, arsenic, total potassium, total nitrogen, pH, TOC and altitude were factors affecting spatial distribution variability of the soil selenium but varied in extent (P < 0.01). (4) The factor detection showed that TOC was the highest in the effect, explaining 0.29 of the variability, followed by Zn, which was 0.18, and the third was Cd, which was 0.16. Interaction detection showed the interpretation degree of the interaction between soil TOC and 17 influencing factors was more than 0.30, which was the dominant factor of spatial differentiation of selenium in topsoil.
CONCLUSIONS The town is characterized by selenium-enriched soil resources; it is suggested to organically combine the selenium-enriched area with the characteristic industries of chives in Tangyuan to build an ecological chain of selenium-enriched industry, and further carry out collaborative analysis on the influencing factors of selenium migration and enrichment in soil crops.
-
-
表 1 各指标分析测试的检出限
Table 1. Detection limit of the analyzed indicators
分析项目 检出限 分析项目 检出限 Cu 1μg/g Hg 0.0003μg/g Pb 2μg/g Se 0.01μg/g Zn 4μg/g TOC 0.01% Ni 2μg/g 全磷 0.001% Cd 0.01μg/g 全氮 0.002% Cr 5μg/g 全钾 0.01% As 0.5μg/g 
下载: 导出CSV
表 2 研究区表层土壤的基本参数分析测试结果
Table 2. Analytical results of basic parameters of topsoil in the study area
基本指标 最大值 最小值 平均值 标准差 变异系数
(%)Cu(mg/kg) 607 18.5 35.2 21.3 60.46 Pb(mg/kg) 90.30 19.8 32.3 5.0 15.52 Zn(mg/kg) 1820 55.0 109 63.5 58.30 Cr(mg/kg) 264 61.7 91.9 10.1 10.96 Ni(mg/kg) 56.6 23.6 37.1 3.8 10.11 Cd(mg/kg) 0.83 0.082 0.22 0.069 31.12 As(mg/kg) 18.0 4.17 9.76 2.09 21.39 Hg(mg/kg) 0.88 0.022 0.15 0.090 58.41 TP(%) 2.08 0.022 0.12 0.080 68.43 TK(%) 2.80 1.03 2.36 0.24 10.22 TN(%) 0.24 0.070 0.13 0.026 19.68 TOC(%) 4.38 0.24 1.77 0.51 28.73 pH 9.04 4.16 6.17 1.01 16.44
下载: 导出CSV
表 3 研究区表层土壤与中国各地土壤硒含量的比较
Table 3. Se contents in the topsoil in the study area and other regions of China
中国相关地区 样品数
(件)硒含量(mg/kg) 变异系数
(%)数据来源 最大值 最小值 中位值 算术平均值 几何平均值 标准差 研究区表层土壤 788 1.10 0.082 0.34 0.337 0.329 0.073 21.63 本文 江西省丰城市 667 0.69 0.13 / 0.33 / 0.09 27.27 [4] 贵州省神惠水县 337 3.65 0.19 0.73 0.85 / 0.45 53 [24] 海南省 280 1.532 / / 0.211 / / 91 [25] 香港 44 2.26 0.07 0.74 0.76 / / 54.8 [8] 黑龙江省 370 0.66 0.008 / 0.147 / / / [14] 北京市 1700 5. 26 0. 04 0. 19 0.2 / / / [26] 西藏 205 0.365 0.049 0.135 0.15 0.133 / 87.9 [27] 广东省 / 1.42 0.03 / 0.28 0.23 / / [28] 福建省龙海市 / 2. 361 0. 031 / 0. 354 / 0. 18 50 [6] 洋河流域 171 3. 24 0. 02 0. 27 / 0. 30 / / [8] 重庆市 / 5.79 0.005 / 0.242 / / 83.8 [29] 四川省巴中市 344 1.15 0. 042 0.148 0.165 / 0.112 67.9 [31] 四川省雷波县 1469 1.08 0.03 / 0.226 / 0.134 59.4 [32] 四川省屏山县 / 1.27 0.046 / 0.24 / / 60.9 [33] 四川省沐川县 1847 1.49 0.06 0.4 0.41 / 0.13 31 [30] 成都平原西部(含郫都区) 75 0.996 0.143 0.348 / 0.37 / [35] 四川省成都市 / / / / 0.23 / / / [34] 四川省 / / / / 0.084 / / / [34] 全国 / 0.993 0.047 0.207 0.29 0.216 / 87.9 [27] 全球 / / / / 0.20 / / / [14] 注：“/”表示没有相关数据。
下载: 导出CSV
表 4 研究区土壤硒含量不同级别面积比例
Table 4. Area ratio of Se content with different levels in soilof the study area
土壤硒等级 硒含量阈值
(mg/kg)硒总体情况 面积比例
(%)过量 ≥3.0 硒中毒 0.0 高硒 0.40~3.0 富硒 3.7 适量 0.175~0.40 足硒 95.5 边缘 0.125~0.175 潜在缺硒 0.6 缺硒 ≤0.125 硒缺乏 0.2
下载: 导出CSV
表 5 研究区不同利用类型土壤硒含量统计
Table 5. Se content in topsoil under different land utilization types in the study area
土地利用类型 样品数量
(件)硒含量(mg/kg) 变异系数
(%)变幅
(mg/kg)平均值
(mg/kg)标准差
(mg/kg)草地 16 0.14~0.45 0.321a 0.096 30.01 耕地 455 0.10~0.54 0.343a 0.063 18.39 工业用地 8 0.16~1.10 0.391a 0.31 78.64 公共用地 13 0.18~0.35 0.257c 0.060 23.54 园地 83 0.14~0.47 0.331a 0.071 21.60 林地 203 0.12~0.58 0.333a 0.065 19.63 商服用地 4 0.082~0.39 0.258b 0.13 51.31 住宅用地 6 0.22~0.48 0.353a 0.099 28.06 注：不同小写字母(a、b、c)代表差异显著(P < 0.05)。
下载: 导出CSV
表 6 研究区土壤硒与其他土壤理化性质的相关性
Table 6. Pearson correlation matrix between Se content and some physical-chemical properties of soil in the study area
测试指标 表层土壤硒
(n=788)剖面土壤硒
(n=46)Cu 0.033 -0.005 Pb 0.296** 0.375* Zn 0.06 0.274 Cr 0.193** 0.084 Ni 0.153** 0.008 Cd 0.346** 0.125 As -0.307** 0.381** Hg 0.182** 0.133 全磷 0.079* 0.393** 全钾 0.208** 0.081 全氮 0.132** 0.644** TOC 0.482** 0.524** pH -0.125** -0.657** 注：“*”表示在0.05水平(双侧)上显著相关；“**”表示在0.01水平(双侧)上显著相关。
下载: 导出CSV
-
[1] Winkel L, Vriens B, Jones G, et al. Selenium cycling across soil-plant-atmosphere interfaces: A critical review[J]. Nutrients, 2015, 7(6): 4199-4239. doi: 10.3390/nu7064199
[2] 王易龙, 杨陟华, 朱茂祥. 硒抗病毒作用研究进展[J]. 中国公共卫生, 2021, 37(10): 1580-1584. doi: 10.11847/zgggws1132823
Wang Y L, Yang S H, Zhu M X. Progress in researches on antiviral effect of selenium: A review[J]. Chinese Journal of Public Health, 2021, 37(10): 1580-1584. doi: 10.11847/zgggws1132823
[3] 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. https://www.cnki.com.cn/Article/CJFDTOTAL-TRTB201503014.htm
Xu Q, Chi F Q, Kuang E J, 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. https://www.cnki.com.cn/Article/CJFDTOTAL-TRTB201503014.htm
[4] 朱青, 郭熙, 韩逸, 等. 南方丘陵区土壤硒空间分异特征及其影响因素——以丰城市为例[J]. 土壤学报, 2020, 57(4): 834-843. https://www.cnki.com.cn/Article/CJFDTOTAL-TRXB202004005.htm
Zhu Q, Guo X, Han Y, et al. Spatial differentiation of soil selenium in hilly regions of South China and its influencing factors: A case study in Fengcheng City[J]. Acta Pedologica Sinica, 2020, 57(4): 834-843. https://www.cnki.com.cn/Article/CJFDTOTAL-TRXB202004005.htm
[5] 周殷竹, 王彪, 刘义, 等. 青海囊谦县城周边农耕区土壤质量地球化学评价及富硒土地利用分区[J]. 干旱区资源与环境, 2020, 34(10): 93-101. https://www.cnki.com.cn/Article/CJFDTOTAL-GHZH202010014.htm
Zhou Y Z, Wang B, Liu Y, et al. Geochemical evaluation of soil quality and land-use regionalization of selenium-rich soils in cultivated area around Nangqian County, Qinghai[J]. Journal of Arid Land Resources and Environment, 2020, 34(10): 93-101. https://www.cnki.com.cn/Article/CJFDTOTAL-GHZH202010014.htm
[6] 曹容浩. 福建省龙海市表层土壤硒含量及影响因素研究[J]. 岩矿测试, 2017, 36(3): 282-288.
Cao R H. Study on selenium content of surface soils in Longhai, Fujian and its influencing factors[J]. Rock and Mineral Analysis, 2017, 2017, 36(3): 282-288.
[7] 姜侠, 张立, 崔玉军, 等. 黑龙江省绥棱县土壤硒空间分布特征及其与土壤性质的关系[J]. 地质与资源, 2020, 29(6): 578, 592-596. https://www.cnki.com.cn/Article/CJFDTOTAL-GJSD202006014.htm
Jiang X, Zhang L, Cui Y J, et al. Spatial distribution of soil selenium and its relation with soil properties in Suiling County, Heilongjiang Province[J]. Geology and Resources, 2020, 29(6): 578, 592-596. https://www.cnki.com.cn/Article/CJFDTOTAL-GJSD202006014.htm
[8] 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. doi: 10.3321/j.issn:0564-3929.2005.03.009
Zhang H B, Luo Y M, Wu L H, et al. Hong Kong soil researches Ⅱ. Distribution and content of selenium in soils[J]. Acta Pedologica Sinica, 2005, 42(3): 404-410. doi: 10.3321/j.issn:0564-3929.2005.03.009
[9] 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. https://www.cnki.com.cn/Article/CJFDTOTAL-HJKZ201501046.htm
Shang J M, Luo W, Wu G H, 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. https://www.cnki.com.cn/Article/CJFDTOTAL-HJKZ201501046.htm
[10] 成晓梦, 孙彬彬, 贺灵, 等. 四川省沐川县西部地区土壤硒含量特征及影响因素[J]. 岩矿测试, 2021, 40(6): 808-819. http://www.ykcs.ac.cn/article/doi/10.15898/j.cnki.11-2131/td.202106080072
Cheng X M, Sun B B, He L, et al. Content characteristics and influencing factors of soil selenium in western Muchuna County, Sichuan Province[J]. Rock and Mineral Analysis, 2021, 40(6): 808-819. http://www.ykcs.ac.cn/article/doi/10.15898/j.cnki.11-2131/td.202106080072
[11] 张慧, 马鑫鹏, 李昕阳, 等. 泰来县耕地土壤硒含量特征及空间分布[J]. 中国农业大学学报, 2018, 23(9): 100-107. https://www.cnki.com.cn/Article/CJFDTOTAL-NYDX201809013.htm
Zhang H, Ma X P, Li X Y, et al. Characteristics and spatial distribution of selenium content in cultivates soils of Tailai County[J]. Journal of China Agricultural University, 2018, 23(9): 100-107. https://www.cnki.com.cn/Article/CJFDTOTAL-NYDX201809013.htm
[12] 蔡立梅, 王硕, 温汉辉, 等. 土壤硒富集空间分布特征及影响因素研究[J]. 农业工程学报, 2019, 35(10): 83-90. doi: 10.11975/j.issn.1002-6819.2019.10.011
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. doi: 10.11975/j.issn.1002-6819.2019.10.011
[13] 陈娟, 宋帅, 史雅娟, 等. 富硒农业生产基地土壤硒资源空间分布特征及评价[J]. 环境化学, 2015, 34(12): 2185-2190. doi: 10.7524/j.issn.0254-6108.2015.12.2015040302
Chen J, Song S, Shi Y J, et al. Spatial distribution and assessment of selenium in soils of a Se-enrich agricultural production base[J]. Environmental Chemistry, 2015, 34(12): 2185-2190. doi: 10.7524/j.issn.0254-6108.2015.12.2015040302
[14] 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. https://www.cnki.com.cn/Article/CJFDTOTAL-TRXB201605017.htm
Chi F Q, Xu Q, Kuang E J, et al. Distribution of selenium and its influencing factors in soils of Heilongjiang Province, China[J]. Acta Pedologica Sinica, 2016, 53(5): 1262-1274. https://www.cnki.com.cn/Article/CJFDTOTAL-TRXB201605017.htm
[15] 王劲峰, 徐成东. 地理探测器: 原理与展望[J]. 地理学报, 2017, 72(1): 116-134. https://www.cnki.com.cn/Article/CJFDTOTAL-DLXB201701011.htm
Wang J F, Xu C D. Geodetector: Principle and prospective[J]. Acta Geographica Sinica, 2017, 72(1): 116-134. https://www.cnki.com.cn/Article/CJFDTOTAL-DLXB201701011.htm
[16] Qiao P W, Yang S C, Lei M, et al. Quantitative analysis of the factors influencing spatial distribution of soil heavy metals based on geographical detector[J]. Science of the Total Environment, 2019, 664: 392-413. doi: 10.1016/j.scitotenv.2019.01.310
[17] 齐杏杏, 高秉博, 潘瑜春, 等. 基于地理探测器的土壤重金属污染影响因素分析[J]. 农业环境科学学报, 2019, 38(11): 2476-2486. doi: 10.11654/jaes.2019-0537
Qi X X, Gao B B, Pan Y C, et al. Influence factor analysis of heavy metal pollution in large-scale soil based on the geographical detector[J]. Journal of Agro-Environment Science, 2019, 38(11): 2476-2486. doi: 10.11654/jaes.2019-0537
[18] Zhu Z, Wang J X, Hu M G, et al. Geographical detection of groundwater pollution vulnerability and hazard in karst areas of Guangxi Province, China[J]. Environmental Pollution, 2019, 245: 627-633. doi: 10.1016/j.envpol.2018.10.017
[19] Ren Y, Deng L Y, Zuo S D, et al. Geographical modeling of spatial interaction between human activity and forest connectivity in an urban landscape of southeast China[J]. Landscape Ecology, 2014, 29(10): 1741-1758. doi: 10.1007/s10980-014-0094-z
[20] 张军, 高煜, 王国兰, 等. 典型河谷城市土壤重金属含量空间分异及其影响因素[J]. 生态环境学报, 2021, 30(6): 1276-1285. https://www.cnki.com.cn/Article/CJFDTOTAL-TRYJ202106019.htm
Zhang J, Gao Y, Wang G L, et al. Spatial differentiation and influencing factors of heavy metal content in soils of typical river valley city[J]. Ecology and Environmental Sciences, 2021, 30(6): 1276-1285. https://www.cnki.com.cn/Article/CJFDTOTAL-TRYJ202106019.htm
[21] 冯辉, 张学君, 张群, 等. 北京大清河流域生态涵养区富硒土壤资源分布特征和来源解析[J]. 岩矿测试, 2019, 38(6): 693-704. http://www.ykcs.ac.cn/article/doi/10.15898/j.cnki.11-2131/td.201905270071
Feng H, Zhang X J, Zhang Q, et al. Distribution characteristics and sources identification of selenium-rich soils in the ecological conservation area of the Daqinghe River Watershed, Beijing[J]. Rock and Mineral Analysis, 2019, 38(6): 693-704. http://www.ykcs.ac.cn/article/doi/10.15898/j.cnki.11-2131/td.201905270071
[22] 刘冰权, 沙珉, 谢长瑜, 等. 江西赣县清溪地区土壤硒地球化学特征和水稻根系土硒生物有效性影响因素[J]. 岩矿测试, 2021, 40(5): 740-750. http://www.ykcs.ac.cn/article/doi/10.15898/j.cnki.11-2131/td.202107230082
Liu B Q, Sha M, Xie C Y, et al. Geochemical characteristics of soil selenium and influencing factors of selenium bioavailability in rice root soils in Qingxi area, Ganxian County, Jiangxi Province[J]. Rock and Mineral Analysis, 2021, 40(5): 740-750. http://www.ykcs.ac.cn/article/doi/10.15898/j.cnki.11-2131/td.202107230082
[23] 迟清华, 鄢明才. 应用地球化学元素丰度数据手册[M]. 北京: 地质出版社, 2007: 81-83.
Chi Q H, Yan M C. Handbook of applied geochemical element abundance data[M]. Beijing: Geological Publishing House, 2007: 81-83.
[24] 息朝庄, 张鹏飞, 吴林锋, 等. 贵州省惠水县涟江大坝土壤硒分布特征及影响因素研究[J/OL]. 中国地质: 1-18[2021-11-04]. http://kns.cnki.net/kcms/detail/11.1167.P.20210301.1622.008.html.
Xi C Z, Zhang P F, Wu L F, et al. Distribution characteristics and influencing factors of selenium in soil from Lianjiang Dam, Huishui County, Guizhou Province[J/OL]. Geology in China: 1-18[2021-11-04]. http://kns.cnki.net/kcms/detail/11.1167.P.20210301.1622.008.html.
[25] 耿建梅, 王文斌, 温翠萍, 等. 海南稻田土壤硒与重金属的含量、分布及其安全性[J]. 生态学报, 2012, 32(11): 3477-3486. https://www.cnki.com.cn/Article/CJFDTOTAL-STXB201211019.htm
Geng J M, Wang W B, Wen C P, et al. Concentrations and distributions of selenium and heavy metals in Hainan paddy soil and assessment of ecological security[J]. Acta Ecologica Sinica, 2012, 32(11): 3477-3486. https://www.cnki.com.cn/Article/CJFDTOTAL-STXB201211019.htm
[26] 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. doi: 10.3969/j.issn.1000-8527.2012.05.003
Guo L, Yang Z F, Ruan Q H, et al. Content and distribution of selenium in soil of Beijing Plain[J]. Geoscience, 2012, 26(5): 859-864. doi: 10.3969/j.issn.1000-8527.2012.05.003
[27] 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. doi: 10.3321/j.issn:0564-3929.2000.04.018
Zhang X P, Zhang Y X. Content and distribution of selenium in soils of Tibet[J]. Acta Pedologica Sinica, 2000, 37(4): 558-562. doi: 10.3321/j.issn:0564-3929.2000.04.018
[28] 陈俊坚, 张会化, 余炜敏, 等. 广东省土壤硒空间分布及潜在环境风险分析[J]. 生态环境学报, 2012, 21(6): 1115-1120. https://www.cnki.com.cn/Article/CJFDTOTAL-TRYJ201206021.htm
Chen J J, Zhang H H, Yu W M, et al. Spatial variation and environmental indications of soil selenium in Guangdong Province[J]. Ecology and Environmental Sciences, 2012, 21(6): 1115-1120. https://www.cnki.com.cn/Article/CJFDTOTAL-TRYJ201206021.htm
[29] 严明书, 龚媛媛, 杨乐超, 等. 重庆土壤硒的地球化学特征及经济意义[J]. 物探与化探, 2014, 38(2): 325-330. https://www.cnki.com.cn/Article/CJFDTOTAL-WTYH201402021.htm
Yan M S, Gong Y Y, Yang L C, et al. Geochemical characteristics and economic significance of the Se-rich soil in Chongqing[J]. Geophysical and Geochemical Exploration, 2014, 38(2): 325-330. https://www.cnki.com.cn/Article/CJFDTOTAL-WTYH201402021.htm
[30] 韩伟, 王乔林, 宋云涛, 等. 四川省沐川县北部土壤硒地球化学特征与成因探讨[J]. 物探与化探, 2021, 45(1): 215-222. https://www.cnki.com.cn/Article/CJFDTOTAL-WTYH202101026.htm
Han W, Wang Q L, Song Y T, et al. Geochemical characteristics and genesis of selenium in soil in northern Muchuan County, Sichuan Province[J]. Geophysical and Geochemical Exploration, 2021, 45(1): 215-222. https://www.cnki.com.cn/Article/CJFDTOTAL-WTYH202101026.htm
[31] 王玥琳, 陈文德, 胡冀珍. 巴中市代表性农作物与土壤Se含量特征[J]. 江苏农业科学, 2016, 44(5): 461-464. https://www.cnki.com.cn/Article/CJFDTOTAL-JSNY201605132.htm
Wang Y L, Chen W D, Hu J Z. Characteristics of Se content in representative crops and soils in Bazhong[J]. Jiangsu Agricultural Science, 2016, 44(5): 461-464. https://www.cnki.com.cn/Article/CJFDTOTAL-JSNY201605132.htm
[32] 时章亮, 金立新, 廖超, 等. 四川雷波县重点耕地区土壤硒含量特征及其成因分析[J]. 物探与化探, 2020, 44(5): 1253-1260. https://www.cnki.com.cn/Article/CJFDTOTAL-WTYH202005036.htm
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. https://www.cnki.com.cn/Article/CJFDTOTAL-WTYH202005036.htm
[33] 刘晓波, 张华, 金立新, 等. 四川省屏山县土壤硒地球化学特征及影响因素[J]. 环境化学, 2017, 36(10): 2246-2252. doi: 10.7524/j.issn.0254-6108.2017022101
Liu X B, Zhang H, Jin L X, et al. Geochemical characteristics and influencing factors of soil selenium in Pingshan of Sichuan Province[J]. Environmental Chemistry, 2017, 36(10): 2246-2252. doi: 10.7524/j.issn.0254-6108.2017022101
[34] 曾琴琴, 王永华, 刘才泽, 等. 四川省南部县土壤地球化学元素分布特征研究[J]. 沉积与特提斯地质, 2021, 41(4): 656-662. https://www.cnki.com.cn/Article/CJFDTOTAL-TTSD202104015.htm
Zeng Q Q, Wang Y H, Liu C Z, et al. Study on chemical element distribution characteristics of soil in Nanbu County, Sichuan Province[J]. Sedimentary Geology and Tethyan Geology, 2021, 41(4): 656-662. https://www.cnki.com.cn/Article/CJFDTOTAL-TTSD202104015.htm
[35] 王英英, 钱蜀, 邓星亮. 成都平原西部农业土壤中金属元素分布特征研究[J]. 三峡环境与生态, 2012, 34(5): 11-14, 18. doi: 10.3969/j.issn.1674-2842.2012.05.004
Wang Y Y, Qian S, Deng X L. Investigation into heavy metals distribution in the farmland soils in the western of Chengdu Plain[J]. Environment and Ecology in Three Gorges, 2012, 34(5): 11-14, 18. doi: 10.3969/j.issn.1674-2842.2012.05.004
[36] 石建凡, 施泽明, 吴鹏盛. 四川万源大竹地区土壤垂向剖面硒的地球化学特征[J]. 地质论评, 2015, 61(S1): 38-39. https://www.cnki.com.cn/Article/CJFDTOTAL-DZLP2015S1020.htm
Shi J F, Shi Z M, Wu P S. Geochemical characteristics of selenium in soil vertical profile in Dazhu area, Wanyuan, Sichuan[J]. Geological Review, 2015, 61(S1): 38-39. https://www.cnki.com.cn/Article/CJFDTOTAL-DZLP2015S1020.htm
[37] 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. doi: 10.3321/j.issn:0578-1752.2007.08.015
Wu W B, Yang P, Tang H J, et al. Regional variability of effects of land use system on soil properties[J]. Scientia Agricultura Sinica, 2007, 40(8): 1697-1702. doi: 10.3321/j.issn:0578-1752.2007.08.015
[38] 宋恒飞, 吴克宁, 李婷, 等. 寒地黑土典型县域土壤重金属空间分布及影响因素分析——以海伦市为例[J]. 土壤通报, 2018, 49(6): 1480-1486. https://www.cnki.com.cn/Article/CJFDTOTAL-TRTB201806030.htm
Song H F, Wu K N, Li T, et al. The spatial distribution and influencing factors of heavy metals in the cold black soil region: A case of Hailun County[J]. Chinese Journal of Soil Science, 2018, 49(6): 1480-1486. https://www.cnki.com.cn/Article/CJFDTOTAL-TRTB201806030.htm
[39] 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. https://www.cnki.com.cn/Article/CJFDTOTAL-TURA201801018.htm
Luo Y J, Han G H, Sun X P, et al. Distribution of soil selenium in Three Gorges Reservoir Region (Chongqing Section) and its influential factors[J]. Soils, 2018, 50(1): 131-138. https://www.cnki.com.cn/Article/CJFDTOTAL-TURA201801018.htm
[40] 姜磊. 万源富硒区土壤中硒元素环境化学特征研究[D]. 成都: 成都理工大学, 2010: 27-35.
Jiang L. Wanyuan selenium-rich soil environmental geochemical characteristics of selenium[D]. Chengdu: Chengdu University of Technology, 2010: 27-35.
[41] 陈海珍, 陈志澄, 刘士哲, 等. 硒与砷在植物中相互作用的实验研究[J]. 农业环境保护, 2001, 20(2): 91-93. https://www.cnki.com.cn/Article/CJFDTOTAL-NHBH200102008.htm
Chen H Z, Chen Z C, Liu S Z, et al. Experimental study on interaction of selenium and arsenic in plant[J]. Agroenvironmental Protection, 2001, 20(2): 91-93. https://www.cnki.com.cn/Article/CJFDTOTAL-NHBH200102008.htm
[42] 侯少范, 王丽珍, 李德珠, 等. 控制土壤硒化学行为因素的探讨[J]. 地理研究, 1991, 10(4): 12-18. https://www.cnki.com.cn/Article/CJFDTOTAL-DLYJ199104001.htm
Hou S F, Wang L Z, Li D Z, et al. The study of the controlling factors of selenium chemical behaviour in soil[J]. Geographical Research, 1991, 10(4): 12-18. https://www.cnki.com.cn/Article/CJFDTOTAL-DLYJ199104001.htm
[43] 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. https://www.cnki.com.cn/Article/CJFDTOTAL-HJKZ201311043.htm
Huang C L, Song M Y, Wei Y C, et al. 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. https://www.cnki.com.cn/Article/CJFDTOTAL-HJKZ201311043.htm
[44] 杨志忠, 周文龙, 罗勇军, 等. 贵州镇远县耕地土壤中硒的分布特征及控制因素[J]. 现代地质, 2021, 35(2): 434-442. https://www.cnki.com.cn/Article/CJFDTOTAL-XDDZ202102013.htm
Yang Z Z, Zhou W L, Luo Y J, et al. Distribution of soil selenium of the cultivated land and its controlling factors in Zhenyuan of Guizhou Province[J]. Geoscience, 2021, 35(2): 434-442. https://www.cnki.com.cn/Article/CJFDTOTAL-XDDZ202102013.htm
[45] 李雨, 韩平, 任东, 等. 基于地理探测器的农田土壤重金属影响因子分析[J]. 中国农业科学, 2017, 50(21): 4138-4148. doi: 10.3864/j.issn.0578-1752.2017.21.008
Li Y, Han P, Ren D, et al. Influence factor analysis of farmland soil heavy metal based on the geographical detector[J]. Scientia Agricultura Sinica, 2017, 50(21): 4138-4148. doi: 10.3864/j.issn.0578-1752.2017.21.008
-
图(6)
表(6)
计量
- 文章访问数: 1815
- PDF下载数: 9
- 施引文献: 0