Water quality and discharge data of Kuonanjoki sub-catchment of Lake Puruvesi

The water quality and discharge has been monitored using continuous device in Kuonanjoki sub catchment of Puruvesi. Following parameters have been monitored: chlorophyll-A, cyanobacteria, electrical conductivity, water temperature, oxygen, total and dissolved organic carbon, turbidity, suspended solids and total phosphorus in addition to discharge and velocity of the stream. Presented data is the latest validated data from period 24.10.2019 - 4.11.2021 (interval of 30 min.). Monitoring has been conducted by Luke as part of the [Horizon 2020 project Operandum](https://www.operandum-project.eu/the-project/) and South Savonia Ely center. Kuonanjoki catchments is part of the Lake Puruvesi catchment, locating in eastern part of Finland. The size of Kuonanjoki catchment is 73 km2, including forest (75% of land area), of which 30 % is peatland forest, in addition there is agricultural area (4%) and water bodies (21%). The former human activities such as ditching of peatlands, have caused increased nutrient (e.g. phosphorus and nitrogen) and suspended solids loads into the lakes of the catchment, and further increased risk of eutrophication and siltation of lakes. Hazard of increased leaching of nutrients and suspended solids may be accelerated by heavy precipitation events caused by climate change. [Additional information / Observations from Kuonanjoki river](https://virpo.fmi.fi/operandum/) Data quality: Validated Persons responsible for handling data requests about this dataset: Liisa Ukonmaanaho

本数据集针对普鲁韦西湖（Puruvesi）的库农南约基（Kuonanjoki）子汇水区，采用连续监测设备对水质与径流量开展了长期连续观测。本次监测的指标涵盖：径流量、水流流速，以及叶绿素-a（Chlorophyll-A）、蓝藻（Cyanobacteria）、电导率（Electrical Conductivity）、水温（Water Temperature）、溶解氧（Oxygen，水质监测语境下指水中溶解氧）、总有机碳与溶解性有机碳、浊度（Turbidity）、悬浮固体（Suspended Solids）及总磷（Total Phosphorus）。本次公开的数据为2019年10月24日至2021年11月4日期间的最新验证数据集，采样间隔为30分钟。本监测由芬兰自然资源研究所（Luke）作为欧盟地平线2020（Horizon 2020）计划下的Operandum项目（https://www.operandum-project.eu/the-project/）与南萨沃尼亚Ely中心（South Savonia Ely center）的合作内容实施。库农南约基汇水区属于普鲁韦西湖流域的一部分，地处芬兰东部区域，流域面积达73 km²。其中林地占陆地总面积的75%，含30%的泥炭林地；另有4%的农业用地与21%的水体。既往人类活动（如泥炭地开沟排水）已导致该汇水区向流域湖泊输入的营养盐（如磷与氮）与悬浮固体负荷显著增加，进一步提升了湖泊富营养化与淤积的风险。气候变化引发的强降水事件可能进一步加剧营养盐与悬浮固体的淋溶风险。更多相关观测信息可参阅[库农南约基河补充资料](https://virpo.fmi.fi/operandum/)。数据质量说明：所有数据均已完成验证。本数据集的数据咨询对接负责人：丽萨·于科曼纳霍（Liisa Ukonmaanaho）