Ecological Impact behind Mega Project Development

Abstract

Abstract-In Thailand, one of Southeast Asia countries, agricultural area can be normally found, however, farmlands have been traditionally developed depending on economic benefits. These are likely to cause a variety of mechanisms interacting to habitat change in these areas which bring to the aim of this study. That is to investigate the effect of land use change to ecological factor with focus on bird communities. The study was separated into two parts, including land use analysis and bird species investigation. The suburbs area connected to Suvarnabhumi Airport was selected. From GIS layer evaluation, there were statistical association of the change between the year 1994 and 2002, with significant difference (P<0.01), evaluated by correlation coefficient. For bird species communities, the species disappearance was found from three to thirty-three species depending on the pattern of land use development. The disappearance of species which use paddy fields as their habitats showed significant relationship (P<0.05), evaluated by pearson correlation.Index Terms-Ecological impact, bird index, land use, Suvarnabhumi Airport, Thailand.

Development of Conceptual Model for Eco-Based Strategic Environmental Assessment

“…Paddy fields to wilderness and to urban development These affect the change of local species including: -Species disappearance, both in the stages of paddy fields to fish farms and fish farms to urban area -The increasing number of urban species, especially for bird species -The change of species behavior, such as from migratory birds to permanent local birds -The change of ecological index, including species diversity, abundance index, and similarity index The highest values of ecological diversity were found in paddy fields. Local species were significantly changed, especially in the stage from paddy fields to fish farms Sources:[48][49][50] …”