Kezer Stream is a significant tributary of the Dicle Basin, located within the boundaries of Siirt Province. This article provides a detailed analysis of the geographical location, source, flow direction, confluence with other streams, discharge, and environmental impacts of Kezer Stream, based solely on the provided sources. Additionally, the contribution of the stream to regional agriculture and its place within the Dicle Basin are also discussed.
Geographical Location and Source
Kezer Stream originates from the İskambo Mountains in the northeastern part of Siirt. These rugged terrains, which form an extension of the Southeastern Taurus Mountains, shape the valley structure as the stream flows through the region. This natural structure plays a significant role in the formation of water sources in the area.
Flow Direction and Path
Kezer Stream follows an east-to-west route, meandering through the western part of Siirt. It merges with Başur Stream in front of the Hümriyan Mezra, which increases the water volume of Kezer, enhancing its environmental impact. It then joins the Botan Stream and becomes part of the Dicle River water system.
Confluence with Başur Stream
One of Kezer's most important tributaries, Başur Stream, originates from the north of Bitlis and travels approximately 45 km within the borders of Siirt. The confluence of Kezer and Başur occurs 2 km south of Başur Bridge on the Siirt-Kurtalan highway. Başur Stream, with an average discharge of 19.715 m³/s, significantly enhances Kezer’s water potential.
Discharge and Water Potential
The average discharge of Kezer Stream has been measured at 18.851 m³/s, according to available sources. During the spring and summer months, with the melting of snow and increased rainfall, this value significantly rises. When it joins Botan Stream, the impact of Kezer becomes clearly visible. Botan Stream has a discharge of 144.549 m³/s, and the contribution of Kezer to this system is undeniable.
Environmental and Economic Contributions
The valleys formed by Kezer Stream are crucial for both environmental diversity and economic activities. Small-scale vegetable farming is conducted along the valleys, which are vital for the local population in Siirt, where wetlands are limited. Despite the narrow and deep structure of the valley restricting irrigation opportunities, it plays a critical role in local production.
Position within the Dicle Basin
Kezer Stream is a part of the Dicle Basin, which is located in Siirt Province. This region, which is the fourth largest basin in Turkey, holds strategic importance in terms of water management. Through its connection with Başur and Botan streams, Kezer Stream contributes significantly to the water cycle of the Dicle Basin.
Geological and Geographical Structure
The path of Kezer Stream is closely related to the geological structure of the region. The stream progresses through limestone mountain areas, forming deep valleys, and plays a role in directing surface and groundwater. Furthermore, its location in the northeastern part of Siirt and its high rainfall significantly contribute to its water potential.
