Draft Environmental Statement Maintenance Dredging Gulf Intracoastal Waterway Texas Section Main Channel And Tributary Channels

Author : Randy Vaughan
Publisher :
ISBN 13 :
Total Pages : 80 pages
Book Rating : 4.:/5 (359 download)

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Download or read book Maintenance Dredging Effects on Vegetation Adjacent to the Gulf Intracoastal Waterway - Cedar Lakes Section written by Randy Vaughan and published by . This book was released on 1977 with total page 80 pages. Available in PDF, EPUB and Kindle. Book excerpt: The relationship of spoil deposition and bank erosion to habitat condition and vegetation is examined in six sites along the Gulf Intracoastal Waterway in Brazoria County, Texas. Fourteen mappable plant assemblages were identified by cluster analysis of data obtained along 100-meter transects and verified in the field. Species frequencies for these plant assemblages are presented in histograms and compared with environmental data collected along these same transects. Vegetation maps of an abstract nature depict the pattem of assemblages for each site. Vegetation and habitat data from the individual sites, viewed in the context of historical land use and modification in the general study area, indicate that soil moisture is the limiting factor for plant growth both past and present. Deposition of spoil on the canal banks has led to less uniform and more dynamic conditions of soil moisture and has increased the range of soil moisture potentials. Spray from passing boats and bank erosion has added a new dimension of wetting and drying along the canal. These effects are observable in the pattern of vegetation. Alternatives for the placement and management of spoil materials are presented which allow some control over the distribution and composition of vegetation.