Department of Landscape Architecture, Poznań University of Life Sciences, Dąbrowskiego 159, 60-594, Poznań, Poland.
Department of Water Protection, Faculty of Biology, Adam Mickiewicz University, Uniwersytetu Poznańskiego 6, 61-614, Poznań, Poland.
Sci Rep. 2022 May 4;12(1):7265. doi: 10.1038/s41598-022-11115-w.
Land use significantly affects the function of waterbodies in landscape. Although there have been numerous studies on the influence of the catchment area on the trophic and ecological status of waterbodies, still is not reached an agreement on the width of the buffer zone that is necessary for effective protection of waterbodies. The aim of the study was to show whether small waterbodies are predominantly influenced by land use in the entire catchment area or only in the zone extending 100 or 200 m away from the shoreline. For two years the waters in six small waterbodies located in the Wielkopolska region (Poland) were analysed. The canonical correspondence analysis (CCA) showed that the influence of land use, especially agricultural land, was much greater within the zone extending 100 m from the shore line of the waterbodies than in the total catchment area. Therefore, it would be advisable to move the border of intensive farming areas beyond the entire 100-m-wide buffer zone, or at least to reduce the intensity of agriculture and to introduce diversified and perennial vegetation creating effective biogeochemical barriers.
土地利用对景观水体功能有显著影响。尽管已有大量研究探讨集水区对水体营养和生态状况的影响，但对于有效保护水体所需的缓冲带宽度仍未达成共识。本研究旨在展示小型水体主要受整个集水区的土地利用影响，还是仅受离岸边 100 或 200 米范围内的区域的土地利用影响。本研究对位于波兰大波兰地区的六个小型水体的水进行了为期两年的分析。典范对应分析（CCA）表明，在离水体岸边 100 米范围内，土地利用（特别是农业用地）对水体的影响要大于整个集水区。因此，将集约农业区的边界移至整个 100 米宽的缓冲带之外，或者至少降低农业强度，并引入多样化和多年生植被，将是明智之举，以建立有效的生物地球化学屏障。
