Where is the Kula River?

Kula River is an international river, which originates from the northern slope of Mount Ekber in Kars province in northeastern Turkey and is called Kola River in Turkey. The river flows from west to northeast, then turns southeast, passes through Turkey, Georgia and Azerbaijan, and finally flows into the Caspian Sea. The total length of the river is 1.364km, the drainage area is1.88km2, the annual average flow of the estuary is 575 m3/s, and the annual runoff is 1.8 1 100m3.

There are many tributaries of Kula River, mainly including: Arazani River and Aragwa River on the left bank; On the right bank are Aras River, Jebel River and Shamhall River.

The Aras River in Transcaucasia is the largest tributary of the Kula River, and it is also called the Araques River in Armenia and Azerbaijan. River length 1072 km, drainage area102,000km2. This river originates from the slope of the Bingel Mountains, and then flows through Armenia, Iran, Azerbaijan and other countries. Most of the river reaches are the boundary rivers of the above four countries. The upper reaches are mountainous rivers, most of which flow in narrow canyons. After the Ahuliang River was injected from the left, the valley widened, and the river entered the alala Plain, where it was divided into many tributaries. After the Nakhichevan Chaya River was injected, the Alasi River began to enter the deep valley, and finally flowed into the Kula-Alaksin lowland, where it was injected into the Kula River near Sabirabad, 240 kilometers away from the mouth of the Kula River. The water supply of Alasi River is mainly groundwater and snow water. There is not much precipitation in the basin, so the amount of water is small. Most of the rivers in the Alasi River basin pass through the forestless mountain areas, carrying a large amount of suspended sediment, with an average annual sediment transport of about 6,543,800 cubic meters. The main tributaries are: Ahuliang River, Razdan River, Alpa River, Vorotan River and Balhosad River on the left bank; Kotur River and Calassou River on the right bank.

Sevan Lake is the largest lake in the Alasi River basin, located on the Armenian volcanic plateau, with a lake area of 14 16 square kilometers and a maximum depth of 100 meters. Lake Sevan collects water from Alegunny, Sevan, Gegam and Valtier. The Razdan River flowing from Lake Sevan flows into the Aras River.

The Arazani River is located in Georgia and Azerbaijan (part of which is the border between the two countries). It originates from the southern slope of the Great Caucasus Mountains and flows into the Ming Guechor Reservoir on the Kula River. The total length of the river is 35 1km, the drainage area is/kloc-0.08 million square kilometers, the annual average flow is about 98 cubic meters per second, and the annual runoff is 3.08 billion cubic meters.

The Kula River basin is located in the south of the Great Caucasus, between 415' ~ 49 east longitude and 38 ~ 42 5' north latitude. Most of the basin is occupied by Armenian volcanic plateau and Caucasus mountains, and a small part is Kula-Alashin lowland.

In the upper reaches of Borjomi Gorge, the Kula River flows in valleys with alternating mountain basins and plains. From Borjomi Gorge to the middle reaches of Tbilisi, rivers basically flow on the plains. Below Tbilisi, the riverbed divides into some tributaries in some areas, and the valley widens: Borcea forest plain on the right and dry Callaya grassland on the left. Pass through Bozdag Canyon, the last canyon near Mingejol village, and then enter the Kula-Alakhin lowland to reach the Caspian Sea. This section of the river twists and turns.

In the middle reaches of Kula River, there are Aragwa River, Arazani River originating from the southern slope of the Great Caucasus Mountain and many tributaries on the right bank originating from the Armenian volcanic plateau and the Little Caucasus Mountain.

At 236 kilometers away from the estuary, it accepted its largest tributary, the Alasi River. When it flows into the Caspian Sea, the Kula River forms a delta with an area of 100 square kilometers. The delta will advance to the Caspian Sea every year 100 meters.

Kula basin is located at the junction of temperate zone and subtropical zone. 5438+ 10 The average temperature in June is about 4℃, and the average temperature in July is about 25℃. The annual precipitation in the basin is about 300 mm, and the proportion of river recharge is: snowmelt water accounts for 36%, groundwater accounts for 30%, rainwater accounts for about 20%, and glacier recharge 14%. Spring (April-June) accounts for 44% ~ 62% of the annual runoff (April-May), summer (July-September) accounts for 65,438+02% ~ 23%, and autumn (65,438+00 ~ 65,438+065,438+).

Due to the large gap, Kula and its mountain tributaries are rich in hydropower resources. At present, Chitahevi, Zemoafchar, Alta Chara, Minggaichaur and other hydropower stations have been built on the main stream of Kula, and some water conservancy projects have been built on the tributaries.