TERENO - Holtemme - Germany

The Holtemme River is a third-order river that originates in the Harz National Park in Germany, at an elevation of 862 meters above sea level. It flows for 47 kilometers before merging with the Bode River. The catchment area covers 282 square kilometers and is primarily composed of Mesozoic rocks, which are overlain by Tertiary and Quaternary sediments. Land use in the catchment demonstrates a typical progression from previously forested headwaters to agricultural and urban areas downstream. Consequently, the river's hydromorphology is almost natural in the upstream reach, while it becomes highly altered downstream due to channelization, riparian clear-cutting, and incision in urban and agricultural areas. In addition to potential ...