Pollution of gravel spawning grounds by deposition of suspended sediment

X. Huang, M. H. Garcia

Research output: Contribution to journalArticle

Abstract

Observations have shown that accumulation of fine sediment in the pores of spawning open-work gravel have a detrimental effect on stream biota. The rate of deposition is intimately linked to the concentration of suspended fines near the gravel bed. If interstitial voids in coarse sediment deposits are filled or covered with sand or inorganic fine materials, their habitat value is greatly reduced. In this paper, a simple method is proposed to predict analytically the concentration profile and transport of fine suspended sediment when a steady, uniform suspension flows from a sediment-covered bed to an open-work gravel bed. Comparisons of the analytical model predictions with previous laboratory observations show reasonable agreement. The proposed solution can be used to estimate 'clarification distances' for streams carrying fine sediments over open-work gravel beds.

Original languageEnglish (US)
Pages (from-to)963-967
Number of pages5
JournalJournal of Environmental Engineering
Volume126
Issue number10
DOIs
StatePublished - Oct 1 2000

Fingerprint

Suspended sediments
spawning ground
Gravel
suspended sediment
gravel
Sediments
Pollution
pollution
sediment
Analytical models
Suspensions
Sand
Deposits
void
biota
spawning
sand
habitat
prediction

ASJC Scopus subject areas

  • Environmental Engineering
  • Civil and Structural Engineering
  • Environmental Chemistry
  • Environmental Science(all)

Cite this

Pollution of gravel spawning grounds by deposition of suspended sediment. / Huang, X.; Garcia, M. H.

In: Journal of Environmental Engineering, Vol. 126, No. 10, 01.10.2000, p. 963-967.

Research output: Contribution to journalArticle

@article{d740cba7b2e941e1883c4630c34a1405,
title = "Pollution of gravel spawning grounds by deposition of suspended sediment",
abstract = "Observations have shown that accumulation of fine sediment in the pores of spawning open-work gravel have a detrimental effect on stream biota. The rate of deposition is intimately linked to the concentration of suspended fines near the gravel bed. If interstitial voids in coarse sediment deposits are filled or covered with sand or inorganic fine materials, their habitat value is greatly reduced. In this paper, a simple method is proposed to predict analytically the concentration profile and transport of fine suspended sediment when a steady, uniform suspension flows from a sediment-covered bed to an open-work gravel bed. Comparisons of the analytical model predictions with previous laboratory observations show reasonable agreement. The proposed solution can be used to estimate 'clarification distances' for streams carrying fine sediments over open-work gravel beds.",
author = "X. Huang and Garcia, {M. H.}",
year = "2000",
month = "10",
day = "1",
doi = "10.1061/(ASCE)0733-9372(2000)126:10(963)",
language = "English (US)",
volume = "126",
pages = "963--967",
journal = "Journal of Environmental Engineering, ASCE",
issn = "0733-9372",
publisher = "American Society of Civil Engineers (ASCE)",
number = "10",

}

TY - JOUR

T1 - Pollution of gravel spawning grounds by deposition of suspended sediment

AU - Huang, X.

AU - Garcia, M. H.

PY - 2000/10/1

Y1 - 2000/10/1

N2 - Observations have shown that accumulation of fine sediment in the pores of spawning open-work gravel have a detrimental effect on stream biota. The rate of deposition is intimately linked to the concentration of suspended fines near the gravel bed. If interstitial voids in coarse sediment deposits are filled or covered with sand or inorganic fine materials, their habitat value is greatly reduced. In this paper, a simple method is proposed to predict analytically the concentration profile and transport of fine suspended sediment when a steady, uniform suspension flows from a sediment-covered bed to an open-work gravel bed. Comparisons of the analytical model predictions with previous laboratory observations show reasonable agreement. The proposed solution can be used to estimate 'clarification distances' for streams carrying fine sediments over open-work gravel beds.

AB - Observations have shown that accumulation of fine sediment in the pores of spawning open-work gravel have a detrimental effect on stream biota. The rate of deposition is intimately linked to the concentration of suspended fines near the gravel bed. If interstitial voids in coarse sediment deposits are filled or covered with sand or inorganic fine materials, their habitat value is greatly reduced. In this paper, a simple method is proposed to predict analytically the concentration profile and transport of fine suspended sediment when a steady, uniform suspension flows from a sediment-covered bed to an open-work gravel bed. Comparisons of the analytical model predictions with previous laboratory observations show reasonable agreement. The proposed solution can be used to estimate 'clarification distances' for streams carrying fine sediments over open-work gravel beds.

UR - http://www.scopus.com/inward/record.url?scp=0034302778&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0034302778&partnerID=8YFLogxK

U2 - 10.1061/(ASCE)0733-9372(2000)126:10(963)

DO - 10.1061/(ASCE)0733-9372(2000)126:10(963)

M3 - Article

AN - SCOPUS:0034302778

VL - 126

SP - 963

EP - 967

JO - Journal of Environmental Engineering, ASCE

JF - Journal of Environmental Engineering, ASCE

SN - 0733-9372

IS - 10

ER -