Nitrogen enrichment in runoff sediments as affected by soil texture in Beijing mountain area.

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  • Author(s): Yang Y;Yang Y; Ye Z; Liu B; Zeng X; Fu S; Lu B
  • Source:
    Environmental monitoring and assessment [Environ Monit Assess] 2014 Feb; Vol. 186 (2), pp. 971-8. Date of Electronic Publication: 2013 Sep 18.
  • Publication Type:
    Journal Article; Research Support, Non-U.S. Gov't
  • Language:
    English
  • Additional Information
    • Source:
      Publisher: Springer Country of Publication: Netherlands NLM ID: 8508350 Publication Model: Print-Electronic Cited Medium: Internet ISSN: 1573-2959 (Electronic) Linking ISSN: 01676369 NLM ISO Abbreviation: Environ Monit Assess Subsets: MEDLINE
    • Publication Information:
      Publication: 1998- : Dordrecht : Springer
      Original Publication: Dordrecht, Holland ; Boston : D. Reidel Pub. Co., c1981-
    • Subject Terms:
      Environmental Monitoring*; Geologic Sediments/*chemistry ; Nitrogen/*analysis ; Soil/*chemistry ; Soil Pollutants/*analysis; China ; Rain ; Soil/classification ; Water Movements
    • Abstract:
      Enrichment ratio (ER) is widely used in nonpoint source pollution models to estimate the nutrient loss associated with soil erosion. The objective of this study was to determine the ER of total nitrogen (ERN) in the sediments eroded from the typical soils with varying soil textures in Beijing mountain area. Each of the four soils was packed into a 40 by 30 by 15 cm soil pan and received 40-min simulated rainfalls at the intensity of 90 mm h(-1) on five slopes. ERN for most sediments were above unity, indicating the common occurrence of nitrogen enrichment accompanied with soil erosion in Beijing mountain area. Soil texture was not the only factor that influenced N enrichment in this experiment since the ERN for the two fine-textured soils were not always lower. Soil properties such as soil structure might exert a more important influence in some circumstances. The selective erosion of clay particles was the main reason for N enrichment, as implied by the significant positive correlation between the ER of total nitrogen and clay fraction in eroded sediments. Significant regression equations between ERN and sediment yield were obtained for two pairs of soils, which were artificially categorized by soil texture. The one for fine-textured soils had greater intercept and more negative slope. Thus, the initially higher ERN would be lower than that for the other two soils with coarser texture once the sediment yield exceeded 629 kg ha(-1).
    • References:
      J Environ Qual. 2001 Mar-Apr;30(2):538-45. (PMID: 11285915)
      Water Sci Technol. 2001;44(7):35-40. (PMID: 11724492)
    • Accession Number:
      0 (Soil)
      0 (Soil Pollutants)
      N762921K75 (Nitrogen)
    • Publication Date:
      Date Created: 20130918 Date Completed: 20140307 Latest Revision: 20211021
    • Publication Date:
      20231215
    • Accession Number:
      10.1007/s10661-013-3431-9
    • Accession Number:
      24043607