Bolam S G, Rees H L, Somerfield P, Smith R, Clarke K R, Warwick R M, Atkins M, Garnacho E
Centre for Environment, Fisheries and Aquaculture Science, Burnham-on-Crouch, Essex, UK.
Mar Pollut Bull. 2006 Apr;52(4):415-26. doi: 10.1016/j.marpolbul.2005.09.028. Epub 2005 Oct 26.
This study provides a holistic perspective on the ecological effects of dredged material disposal, both intertidally and subtidally. A number of numerical techniques (univariate, distributional, multivariate and meta-analysis) were used to assess impacts at 18 different disposal sites. The analyses revealed that ecological effects associated with dredged material disposal were dependent on the numerical techniques used, and that impacts were disposal-site specific. Disposal-site communities were generally faunistically impoverished to varying degrees, and impacts following intertidal placement were comparable to those of subtidal placement. We conclude that any assessment of the consequences of dredged material disposal to the coastal environment must take account of site-specific variation in prevailing hydrographic regimes and in ecological status, along with information on the disposal activity itself (mode, timing, quantity, frequency and type of material). As would be expected, variability in the latter presents a significant challenge in attempts to generalise about environmental and ecological impacts.
本研究从潮间带和潮下带两个方面，对疏浚物处置的生态效应提供了一个全面的视角。使用了多种数值技术（单变量、分布、多变量和元分析）来评估18个不同处置地点的影响。分析表明，与疏浚物处置相关的生态效应取决于所使用的数值技术，且影响具有处置地点特异性。处置地点的群落通常在不同程度上在动物区系方面变得贫瘠，潮间带放置后的影响与潮下带放置的影响相当。我们得出结论，对疏浚物处置对沿海环境的后果进行任何评估时，都必须考虑到盛行水文状况和生态状况的地点特异性变化，以及处置活动本身的信息（方式、时间、数量、频率和材料类型）。正如预期的那样，后者的变异性在试图概括环境和生态影响时带来了重大挑战。
