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Soil erodibility for water pollution management of Melaka watershed in Peninsular Malaysia

机译:马来西亚半岛马六甲流域水污染管理的土壤易蚀性

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摘要

The relationships between surface runoffand soil erodibility are significant in water pollution and watershed management practices. Land use pattern, soil series and slope percentage are also major factors to develop the relationships. Daily rainfall data were collected and analyzed for variations in precipitation for calculating the surface runoff of these watersheds and surface runoff map was produced by GIS tools. Tew equation was utilized to predict soil erodibility of watershed soils.Results indicated that the weighted curve number varies from 82 to 85 and monthly runoff 23% to 30% among the five watersheds. Soil erodibility varies from 0.038 to 0.06 ton/ha (MJ.mm/ha/h). Linau-Telok-Local Alluvium, Malacca-Munchong, Munchong-Malacca-Serdang and Malacca-Munchong-Tavy are the dominant soil series of this region having the average soil erodibility of about 0.042 ton/ha (MJ.mm/ha/h). The main focus of this study is to provide the information of soil erodibility to reduce the water pollution of a watershed.
机译:在水污染和流域管理实践中,地表径流与土壤易蚀性之间的关系非常重要。土地利用方式,土壤系列和坡度百分比也是发展这种关系的主要因素。收集每日降雨数据并分析降雨变化,以计算这些流域的地表径流,并使用GIS工具制作地表径流图。利用Tew方程预测了流域土壤的侵蚀性,结果表明,在5个流域中加权曲线数从82到85不等,月径流量在23%到30%之间。土壤侵蚀性从0.038到0.06吨/公顷(MJ.mm/ha/h)不等。 Linau-Telok-本地冲积层,马六甲-蒙通,Munchong-马六甲-Serdang和马六甲-Munchong-Tavy是该地区的主要土壤系列,平均土壤可蚀性约为0.042吨/公顷(MJ.mm/ha/h) 。这项研究的主要重点是提供土壤易蚀性信息,以减少流域的水污染。

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