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首页> 外文期刊>Environmental Monitoring and Assessment >Effect of watershed land use on tributaries' water quality in the east African Highland
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Effect of watershed land use on tributaries' water quality in the east African Highland

机译：东非高地流域土地利用对支流水质的影响

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摘要

A study was carried out on four tributaries of Gilgel Gibe Reservoir to identify water physicochemical characteristics in different land use categories (farmland, naturally vegetated land, and settlement). Water samples were collected from 12 sampling sites along four permanent streams flowing into Gilgel Gibe Reservoir. Data sets were evaluated using nonparametric statistical techniques. Dissolved oxygen (DO), temperature, biochemical oxygen demand (BOD~(5)), total phosphorus (TP), soluble reactive phosphorus (SRP), total nitrogen (TN), turbidity, total dissolved solids (TDS), and total suspended solids (TSS) spatially showed significant differences in the wet season and DO, temperature, and BOD~(5)varied significantly during the dry season. When excluding DO, electrical conductivity (EC), and TP during the wet and dry seasons, the remaining variables showed significant differences. During the wet season, concentrations of most water quality parameters were greatest in influents from agricultural land. Pollution and eutrophication risk is closely associated with drainage from agricultural land, requiring that emphasis and priorities be given to land use management and conservation.
机译：对吉尔吉尔·吉贝水库的四个支流进行了研究，以确定不同土地利用类别（农田，自然植被土地和定居点）的水理化特性。沿着流入吉尔吉·吉贝水库的四个永久性溪流从12个采样点采集水样。使用非参数统计技术评估数据集。溶解氧（DO），温度，生化需氧量（BOD〜（5）），总磷（TP），可溶性活性磷（SRP），总氮（TN），浊度，总溶解固体（TDS）和总悬浮物固体（TSS）在雨季中表现出显着差异，而DO，温度和BOD〜（5）在旱季中表现出显着差异。当排除干湿季节的溶解氧，电导率（EC）和TP时，其余变量显示出显着差异。在雨季，来自农田的进水中大多数水质参数的浓度最高。污染和富营养化的风险与从农业用地流失密切相关，要求对土地利用的管理和保护给予重视和优先考虑。

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