Water plant cover IJsselmeer area — Kleine Lisdodde — 2012

Water plant cover IJsselmeer area. The water plant cover in the IJsselmeer area is monitored every three years. That is to say, in a three-year cycle in each part of the area, water plant cover shall be identified: in 2016 in the Markermeer and IJmeer, in 2017 in the IJsselmeer, and in 2018 in the edge lakes. NB: the Veluwemeer was not area-covered in 2018, but in a limited number of locations.For every year there is a dataset per species of aquatic plants found and a dataset with the total coverage present. These datasets are interpolated data. In addition, there is a dataset per year with the (point) locations of the field observations.In these datasets information from the years 2011 to 2018. Overall, the zone of 0-3 meters depth is calibrated. See the “Punts map field observations” layer for a view of the measuring points. Watch out! Aquatic plants can also occur outside the serrated zone.本数据集围绕艾瑟尔湖（IJsselmeer）区域水生植物覆盖情况展开。该区域水生植物覆盖状况每三年开展一轮监测。具体而言，区域内各片区按照三年周期依次完成水生植物覆盖度识别工作：2016年对马尔肯湖（Markermeer）与艾米尔湖（IJmeer）开展调查，2017年针对艾瑟尔湖（IJsselmeer）本体，2018年则覆盖沿岸湖泊。注意：2018年未对费吕沃湖（Veluwemeer）实施全区域调查，仅在有限数量的限定点位进行了观测。每年均包含两类数据集：其一为调查发现的各水生植物物种数据集，其二为区域总覆盖度数据集。上述数据集均为插值生成数据。此外，每年还配套包含一套野外实地观测（点位）坐标数据集。本系列数据集涵盖2011至2018年的全部相关观测信息。整体而言，0至3米水深区间已完成校准。可通过"Punts map field observations"图层查看监测点位分布。请注意：水生植物也可能分布于锯齿状划定区域之外。