期刊名称：African Journal of Environmental Science and Technology
电子版ISSN：1996-0786
出版年度：2010
卷号：4
期号：10
页码：660-665
DOI：10.5897/AJEST09.247
语种：English
出版社：Academic Journals
摘要：Across the northern rural regions of Iran, gardens and farmlands are being fragmented into smaller and smaller patches by rural roads network with significant edge effects on plant species composition and abundance. In this study, the presence of different plant species was recorded in ninety 11 m plots on nine 100 m transects at the edge of terrene rural roads with irrigation canal and without irrigation canal. Thirty seven plant species were identified in the 9 transects surveyed. Twenty six (70.3%) of those species occurred near the irrigation canal (Transects 2 and 3).Rubus hyrcanusJuz (more than 80% in visually) were observed on transect 3 of the roadside with irrigation canal because of the availability of light and high soil moisture.Ulmus carpinifoliaBorkh.,Quercus castaneifoliaC. A. Mey.,Pterocarya fraxinifolia(Lam.) Spach.,Parrotia persicaC.A.M.,Zelkova carpinifolia(pall.) Dipp. andAlbizia julibrissin(Willd) Benth were the unique species that were found close to the irrigation canal especially on transect 2. These species are the final survivors of Hyrcanian forests in rural area that were protected from human damages. Plant species richness at the edge of rural road with irrigation canal (37 species) was more than the edge of rural road without irrigation canal (17 species), but the cover value was similar to each other.Punica granatumL. was the most frequent species (more than 80%) on both side of rural road (transect 2 and 3) without irrigation canal.
