高级搜索

敦煌地区浅层包气带硝态氮的空间分布与富集特征

,  ,  ,  , 

downloadPDF

上一篇

下一篇

赵梦竹, 马金珠, 孙朋, 赵玮, 张琨. 敦煌地区浅层包气带硝态氮的空间分布与富集特征[J]. 环境化学, 2015, 34(10): 1823-1831. doi: 10.7524/j.issn.0254-6108.2015.10.2015040104
引用本文: 赵梦竹, 马金珠, 孙朋, 赵玮, 张琨. 敦煌地区浅层包气带硝态氮的空间分布与富集特征[J]. 环境化学, 2015, 34(10): 1823-1831. doi: 10.7524/j.issn.0254-6108.2015.10.2015040104
shu
ZHAO Mengzhu, MA Jinzhu, SUN Peng, ZHAO Wei, ZHANG Kun. Characteristics of spatial distribution and accumulation of nitrate in the unsaturated soil profiles in Dunhuang[J]. Environmental Chemistry, 2015, 34(10): 1823-1831. doi: 10.7524/j.issn.0254-6108.2015.10.2015040104
Citation: ZHAO Mengzhu, MA Jinzhu, SUN Peng, ZHAO Wei, ZHANG Kun. Characteristics of spatial distribution and accumulation of nitrate in the unsaturated soil profiles in Dunhuang[J]. Environmental Chemistry, 2015, 34(10): 1823-1831. doi: 10.7524/j.issn.0254-6108.2015.10.2015040104
shu

敦煌地区浅层包气带硝态氮的空间分布与富集特征

  • 1.

    兰州大学资源环境学院西部环境教育部重点实验室, 兰州, 730000

  • 基金项目:

    国家自然科学基金 (41271039)资助.

Characteristics of spatial distribution and accumulation of nitrate in the unsaturated soil profiles in Dunhuang

  • 1.

    Key Laboratory of Western China's Environmental Systems (Ministry of Education), College of Earth and Environment Science, Lanzhou University, Lanzhou, 730000, China

  • Fund Project:

  • 摘要: 选取我国西北干旱区敦煌地区6种不同类型的典型土壤为研究对象, 通过测定各土壤剖面Cl-和NO3-浓度, 探究Cl-和NO3-的空间分布特征以及NO3-的富集程度.结果表明, NO3-与 Cl-的分布特征基本一致, 并与水分含量具有良好的相关性, 随包气带埋深的增加呈现波动递减的变化趋势.强烈的蒸散发作用和微生物的硝化作用使土壤表层的NO3-含量较高, 植物根系对NO3-和水分的吸收降低了NO3-浓度, 并导致NO3-与Cl-的分布特征存在不同程度的差异性.不同类型土壤中的NO3-含量不同, 盐碱地 > 林地 > 农田 > 草地 > 戈壁 > 沙漠.沙土可促进NO3-的淋溶, 无植被生长的戈壁沙漠中较高的NO3-/Cl-伴随较低的Cl-含量说明硝态氮的富集主要发生在干旱阶段, 蓝藻菌的固氮作用活跃, 而农田土壤中硝态氮的富集受人为源影响显著.
    Abstract: By measuring the concentrations of Cl- and NO3- in six typical soils collected from Dunhuang in northwest China, this study explored the spatial distribution characteristics of Cl- and NO3- and accumulation of NO3-. The results indicated that the distribution characteristic of NO3- was similar to that of Cl-, and both of them correlated well with the soil moisture. With the increase in the depth of the unsaturated zone, the concentration of NO3- displayed a decreasing trend of volatility. The intense evaporation and microbial nitrification resulted in relatively high NO3- content in the soil surface, while water and nutrition uptake by plant roots reduced the concentration of NO3- in the root zone. This process caused some differences in the vertical distributions between NO3- and Cl-. The concentration of NO3- showed significant difference among different soils, with an order of saline > forest > farmland > grassland > gobi > desert. Because NO3- can easily leach out in sand soil, the lower level of Cl- and high level of NO3-/Cl- in gobi and desert indicated that nitrate enrichment mainly occurs in the arid phase and nitrogen fixation of cyanobacteria is active. However, nitrate enrichment in farmland soil was significantly affected by anthropogenic activities.
  • 加载中
  • [1] 吕殿青, 同延安, 孙本华. 氮肥施用对环境污染影响的研究[J]. 植物营养与肥料学报, 1998, 4(1): 8-15
    [2] 张庆忠, 陈欣, 沈善敏. 农田土壤硝酸盐积累与淋失研究进展[J]. 应用生态学报, 2002, 13(2): 233-238
    [3] Ju X T, Zhang F S. Nitrate accumulation and its implication to environment in north China[J]. Ecology and Environment, 2003, 12(1): 24-28
    [4] 马洪斌, 李晓欣, 胡春胜. 中国地下水硝态氮污染现状研究[J]. 土壤通报, 2013, 43(6): 1532-1536
    [5] Benbi D K, Biswas C R, Kalkat J S. Nitrate distribution and accumulation in an Ustochrept soil profile in a long term fertilizer experiment[J]. Fertilizer Research, 1991, 28(2): 173-177
    [6] Linville K W, Smith G E. Nitrate content of soil cores from corn plots after repeated nitrogen fertilization[J]. Soil Science, 1971, 112(4): 249-255
    [7] 李翔, 王文科, 杨胜科, 等. 马兰黄土中与三氮有关的微生物的分布及其反硝化能力[J]. 环境污染与防治, 2006, 28(6): 411-415
    [8] 孙彭力, 王慧君. 氮素化肥的环境污染[J]. 环境污染与防治, 1995, 17(1): 38-41
    [9] Jenkinson D S. An introduction to the global nitrogen cycle[J]. Soil Use and Management, 1990, 6(2): 56-61
    [10] 洪国华, 梁会圃, 王宏珍. 包气带水研究方向浅议[J]. 地下水, 2006, 27(5): 365-366
    [11] 田华. 氨氮在滦河三角洲典型包气带介质上的吸附性能研究[J]. 环境工程学报, 2011, 5(3): 507-510
    [12] 杨荣, 苏永中. 黑河中游绿洲农区地下水硝态氮污染调查研究[J]. 冰川冻土, 2009, 30(6): 983-990
    [13] 胡立峰, 胡春胜, 安忠民, 等. 不同土壤耕作法对作物产量及土壤硝态氮淋失的影响[J]. 水土保持学报, 2006, 19(6): 186-189
    [14] 李正兆, 高海鹰, 张奇, 等. 抚仙湖流域典型农田区地下水硝态氮污染及其影响因素[J]. 农业环境科学学报, 2008, 27(1): 286-290
    [15] Levallois P, Theriault M, Rouffignat J, et al. Groundwater contamination by nitrates associated with intensive potato culture in Quebec[J]. Science of the Total Environment, 1998, 217(1): 91-101
    [16] 袁兴程, 钱新, 庞宗强, 等. 不同土地利用方式土壤表层氮, 磷流失特征研究[J]. 环境化学, 2011, 30(9): 1657-1662
    [17] Stadler S, Talma A S, Tredoux G, et al. Identification of sources and infiltration regimes of nitrate in the semi-arid Kalahari: Regional differences and implications for groundwater management[J]. Water SA, 2012, 38(2): 213-224
    [18] Yuan L, Pang Z, Huang T. Integrated assessment on groundwater nitrate by unsaturated zone probing and aquifer sampling with environmental tracers[J]. Environmental Pollution, 2012, 171: 226-233
    [19] 程芳, 程金平, 于金莲, 等. 大金山岛土壤有机质与全氮的空间分布及其相关性[J]. 环境化学, 2013, 32(9): 1634-1638
    [20] 李荣, 何兴东, 张宁, 等. 沙丘固定过程中土壤铵态氮和硝态氮的时空变化[J]. 土壤学报, 2010 (2): 295-302
    [21] Graham R C, Hirmas D R, Wood Y A, et al. Large near-surface nitrate pools in soils capped by desert pavement in the Mojave Desert, California[J]. Geology, 2008, 36(3): 259-262
    [22] Fenn M E, Baron J S, Allen E B, et al. Ecological effects of nitrogen deposition in the western United States[J]. Bioscience, 2003, 53(4): 404-420
    [23] 张明泉, 赵转军, 曾正中. 敦煌盆地水环境特征与水资源可持续利用[J]. 干旱区资源与环境, 2003, 17(4): 71-77
    [24] 马金珠, 李丁, 李相虎. 巴丹吉林沙漠包气带 Cl-示踪与气候记录研究[J]. 中国沙漠, 2005, 24(6): 674-679
    [25] Jabro J D, Lotse E G, Simmons K E, et al. A field study of macropore flow under saturated conditions using a bromide tracer[J]. Journal of Soil and Water Conservation, 1991, 46(5): 376-380
    [26] Kennedy A C, Papendick R I. Microbial characteristics of soil quality[J]. Journal of Soil and Water Conservation, 1995, 50(3): 243-248
    [27] Austin A T, Yahdjian L, Stark J M, et al. Water pulses and biogeochemical cycles in arid and semiarid ecosystems[J]. Oecologia, 2004, 141(2): 221-235
    [28] 刘宏斌, 李志宏, 张云贵, 等. 北京市农田土壤硝态氮的分布与累积特征[J]. 中国农业科学, 2004, 37(5): 692-698
    [29] 樊军, 郝明德. 旱地农田土壤剖面硝态氮累积的原因初探[J]. 农业环境科学学报, 2003, 22(3): 263-266
    [30] Young E O, Briggs R D. Shallow ground water nitrate-N and ammonium-N in cropland and riparian buffers[J]. Agriculture, Ecosystems & Environment, 2005, 109(3): 297-309
    [31] 刘全友, 孙建中, 邱光葵, 等. 海河流域土壤中氮的分布特征[J]. 环境科学学报, 1992, 12(4): 489-496
    [32] Sitaula B K, Bakken L R. Nitrous oxide release from spruce forest soil: Relationships with nitrification, methane uptake, temperature, moisture and fertilization[J]. Soil Biology and Biochemistry, 1993, 25(10): 1415-1421
    [33] 张金, 付素静, 王云权, 等. 荒漠地区包气带氯离子与硝酸盐的空间分布特征[J]. 干旱区地理, 2013, 36(3): 409-415
    [34] 张宇, 张海, 齐雁冰, 等. 黄土坡地几种退耕植被土壤硝态氮分布特征与迁移研究[J]. 农业环境科学学报, 2012, 31(1): 155-160
    [35] Zebarth B J, Freyman S, Kowalenko C G. Influence of nitrogen fertilization on cabbage yield, head nitrogen content and extractable soil inorganic nitrogen at harvest[J]. Canadian Journal of Plant Science, 1991, 71(4): 1275-1280
    [36] Stark J M, Firestone M K. Mechanisms for soil moisture effects on activity of nitrifying bacteria[J]. Applied and Environmental Microbiology, 1995, 61(1): 218-221
  • 加载中
WeChat 点击查看大图
计量
  • 文章访问数:  1250
  • HTML全文浏览数:  1202
  • PDF下载数:  415
  • 施引文献:  0
出版历程
  • 收稿日期:  2015-04-01
  • 刊出日期:  2015-10-15
赵梦竹, 马金珠, 孙朋, 赵玮, 张琨. 敦煌地区浅层包气带硝态氮的空间分布与富集特征[J]. 环境化学, 2015, 34(10): 1823-1831. doi: 10.7524/j.issn.0254-6108.2015.10.2015040104
引用本文: 赵梦竹, 马金珠, 孙朋, 赵玮, 张琨. 敦煌地区浅层包气带硝态氮的空间分布与富集特征[J]. 环境化学, 2015, 34(10): 1823-1831. doi: 10.7524/j.issn.0254-6108.2015.10.2015040104
shu
ZHAO Mengzhu, MA Jinzhu, SUN Peng, ZHAO Wei, ZHANG Kun. Characteristics of spatial distribution and accumulation of nitrate in the unsaturated soil profiles in Dunhuang[J]. Environmental Chemistry, 2015, 34(10): 1823-1831. doi: 10.7524/j.issn.0254-6108.2015.10.2015040104
Citation: ZHAO Mengzhu, MA Jinzhu, SUN Peng, ZHAO Wei, ZHANG Kun. Characteristics of spatial distribution and accumulation of nitrate in the unsaturated soil profiles in Dunhuang[J]. Environmental Chemistry, 2015, 34(10): 1823-1831. doi: 10.7524/j.issn.0254-6108.2015.10.2015040104
shu

敦煌地区浅层包气带硝态氮的空间分布与富集特征

  • 1. 兰州大学资源环境学院西部环境教育部重点实验室, 兰州, 730000
  • 收稿日期:  2015-04-01
基金项目:

国家自然科学基金 (41271039)资助.

摘要: 选取我国西北干旱区敦煌地区6种不同类型的典型土壤为研究对象, 通过测定各土壤剖面Cl-和NO3-浓度, 探究Cl-和NO3-的空间分布特征以及NO3-的富集程度.结果表明, NO3-与 Cl-的分布特征基本一致, 并与水分含量具有良好的相关性, 随包气带埋深的增加呈现波动递减的变化趋势.强烈的蒸散发作用和微生物的硝化作用使土壤表层的NO3-含量较高, 植物根系对NO3-和水分的吸收降低了NO3-浓度, 并导致NO3-与Cl-的分布特征存在不同程度的差异性.不同类型土壤中的NO3-含量不同, 盐碱地 > 林地 > 农田 > 草地 > 戈壁 > 沙漠.沙土可促进NO3-的淋溶, 无植被生长的戈壁沙漠中较高的NO3-/Cl-伴随较低的Cl-含量说明硝态氮的富集主要发生在干旱阶段, 蓝藻菌的固氮作用活跃, 而农田土壤中硝态氮的富集受人为源影响显著.

English Abstract

    全文HTML

参考文献 (36)

返回顶部

目录

/

返回文章
返回

Copyright © 2019 中国科学院生态环境研究中心