Evaluation of Texas native grasses for TxDOT right of ways : technical report.
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2009-05-01
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Edition:Technical report: Jan. 2006-Dec. 2008
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Abstract:The Texas Department of Transportation (TxDOT) has one of the largest right-of-way areas in the ; United States with over 127,138 km of state maintained highway. In 2003, the new guidelines for Texas ; Pollution Discharge Elimination System went into effect causing a renewed interest in TxDOT’s strive to ; establish vegetation as quickly as possible. These guidelines, along with executive orders signed in 1999 ; and 2000, have brought about a growing interest in reducing spread and establishment of invasive nonnative ; plant species, with emphasis on maintaining or increasing native species diversity and restoring ; ecosystem processes. ; A two-year study was conducted in Andrews, Baylor, and Kleberg Counties in Texas. Our objectives ; were to test the hypotheses that 1) two native species, hooded windmillgrass (WMG) and shortspike ; WMG, provide similar vegetation canopy cover as the standard seed mixtures currently used by TxDOT ; when added as a component in a native seed mixture; 2) native WMGs would provide similar vegetative ; cover as bermudagrass with use of a soil retention blanket; 3) hooded and shortspike WMGs provide ; similar canopy cover as bermudagrass (Cynodon dactylon) on single species plots; and 4) drill planting ; technique would allow a greater proportion of seeds planted to establish a root system, therefore ; providing greater canopy cover when compared against a broadcasting technique.
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Main Document Checksum:urn:sha256:44b0bc8f705e6336b620493e46eaec79687855aec56d9f08f0ddc7a842350040