Abstract：
Water supply companies with reservoirs in peatland areas need to know how land use and vegetation cover in their supply catchments impact the amount and composition of aquatic organic matter in raw waters. Drinking water treatment processes remove organic matter from potable supplies, but recent increases in concentration and changes in composition have made this more difficult. This study analysed the composition of aquatic organic matter from peatland catchments in the UK and Faroe Islands. Both dissolved organic matter (DOM) and particulate organic matter (POM) compositions varied spatially, but these differences were not consistent as water moved through catchments, from headwaters and peatland pools to lake and reservoir outlets. These data showed that lakes and reservoirs are acting as flocculation hotspots, processing OM, releasing carbon (C), hydrogen (H) and oxygen (O) compounds to the atmosphere, and resulting in OM with higher N content. DOM compositions could be grouped into five clusters, showing that water treatment processes can be maximised to target \'envelopes\' or clusters of DOM compositions. Catchment factors such as land use, vegetation cover, percentage peat cover and catchment area are good indicators of OM compositions likely to be present in a reservoir, and can guide water companies to maximise efficiency of their raw water treatment processes.
摘要：
在泥炭地地区设有水库的供水公司需要了解其供水流域的土地利用和植被覆盖如何影响原水中水生有机物的数量和组成。饮用水处理过程去除饮用水用品中的有机物，但是最近浓度的增加和成分的变化使这变得更加困难。这项研究分析了英国和法罗群岛泥炭地流域的水生有机物组成。溶解有机物（DOM）和颗粒有机物（POM）的组成在空间上有所不同，但是当水通过集水区时，这些差异并不一致，从源头和泥炭地池到湖泊和水库出口。这些数据表明，湖泊和水库作为絮凝热点，处理OM，释放碳(C)，氢（H）和氧（O）化合物进入大气，并导致OM具有较高的N含量。DOM组合物可以分为五个集群，表明水处理工艺可以最大化地针对DOM成分的“信封”或集群。集水因素，如土地利用，植被覆盖,泥炭覆盖百分比和集水区是储层中可能存在的OM成分的良好指标，并可以指导水务公司最大限度地提高原水处理过程的效率。
