Rapid Assessment of Intertidal Wetland Sediments

Jinren Ni, Jinshui Sun, Alistair G. L. Borthwick, Yuan Fang

Research output: Contribution to journalArticlepeer-review

Abstract

Urbanization of coastal areas poses a severe threat to ecologically valuable intertidal wetlands. This paper presents a pragmatic approach called Rapid Assessment for Intertidal Wetland Sediments (RAITWS) for evaluating the sediment quality of intertidal wetlands. RAITWS involves construction of reference groups, selection of a subset of environmental variables, matching of test sites to reference groups, prediction of the benthic fauna community structure (e. g. of macroinvertebrates) at test sites, evaluation of the Observation to Expectation ratio (O/E ratio), quantification of environmental variables with series of dynamic numerical models, and interpretation of the O/E findings. The proposed method extends the existing rapid biological assessment approach from static to dynamic applications. In particular, RAITWS provides a fast method of assessing intertidal wetland sites which are undergoing ecological change due to nearby coastal development.

Original languageEnglish
Pages (from-to)574-585
Number of pages12
JournalSoil and Sediment Contamination
Volume21
Issue number5
DOIs
Publication statusPublished - 2012

Keywords

  • Rapid assessment
  • intertidal wetland
  • sediments
  • dynamic models
  • environment
  • RUNNING-WATER SITES
  • BENTHIC MACROINVERTEBRATES
  • COMMUNITY STRUCTURE
  • BIOLOGICAL ASSESSMENT
  • ENVIRONMENTAL DATA
  • MANGROVE FORESTS
  • BIOTIC INDEX
  • LAND-USE
  • QUALITY
  • ESTUARINE

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