Windsurfing

Spill sections are sections in flowing waters where, due to hydropower use, unnaturally rapid changes in the flow rate occur. At times of higher electricity demand more water is processed here in the power plant, the outflow from the power plant and thus in the section below the power plant is usually higher than the inflow into the storage space. The water level in the storage space drops, in the distance below there is a spill. At times of lower power consumption, the ratios are exactly the opposite, one speaks of the Sunk. This so-called swelling operation, depending on the size (shwall-sunk ratio) and the speed and frequency of the flow change, has more or less negative effects on the ecological state of the flowing water. The data level corresponds to the National Water Management Plan (NGP) 2015 and will be updated after the publication of the NGP 2021.泄流河段 (Spill sections) 指天然河道中因水电开发调度导致流量发生非自然快速变化的河段。当电力需求较高时，电厂发电取水量增加，电厂下泄流量（即电厂下游河段的流量）通常高于水库入库流量，水库水位随之下降，下游较远河段便会出现溢水情况。当电力消费需求较低时，上述流量比例关系恰好相反，该状态被称为蓄水时段 (Sunk)。这种所谓的调峰调度运行 (swelling operation)，会根据其调度规模（泄流-蓄水比）、流量变化速率与频率，对河流水生态状况造成不同程度的负面影响。本数据集的编制依据《国家水管理计划 (National Water Management Plan, NGP)》2015版，并将在《NGP 2021》发布后进行更新。