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Bukhara Oasis
Bukhara Oasis () is a fertile area in the south-eastern part of Uzbekistan formed by the Zerafshan River. The oasis is heavily populated and Bukhara is the largest city. The oasis has been inhabited for at least two and a half millennia. After becoming a part of the Silk Road, Bukhara Oasis' influence grew over its neighbours. It was conquered by Arabs in the 9th century. As of 2019, approximately 1.2 million people live in the oasis while the area of irrigation stretches to . Geography Bukhara Oasis is located in the south-east of Uzbekistan, near the smaller Qaraqol Oasis, on the alluvial plain formed by the meandering Zerafshan River. The Oasis emerged at the Zerafshan River delta between two larger waterways, Syr Darya and Amu Darya; it divides two cultural regions: Mediterranean-Iranian and China. The northern reach of the oasis is framed by the Kouldouktou mountains, but the average altitudes of the oasis are low: 200 to 260 m above the sea level. It is bordered ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Amu Darya
The Amu Darya ( ),() also shortened to Amu and historically known as the Oxus ( ), is a major river in Central Asia, which flows through Tajikistan, Turkmenistan, Uzbekistan, and Afghanistan. Rising in the Pamir Mountains, north of the Hindu Kush, the Amu Darya is formed by the confluence of the Vakhsh River, Vakhsh and Panj River, Panj rivers, in the Tigrovaya Balka Nature Reserve on the border between Afghanistan and Tajikistan, and flows from there north-westwards into the South Aral Sea, southern remnants of the Aral Sea. In its upper course, the river forms part of Afghanistan's northern border with Tajikistan, Uzbekistan, and Turkmenistan. In ancient history, the river was regarded as the boundary of Greater Iran with Turan, which roughly corresponded to present-day Central Asia.B. SpulerĀmū Daryā in Encyclopædia Iranica, online ed., 2009 The Amu Darya has a flow of about 70 cubic kilometres per year on average. Names In classical antiquity, the river was known as the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Avulsion (river)
In sedimentary geology and fluvial geomorphology, avulsion is the rapid abandonment of a river channel and the formation of a new river channel. Avulsions occur as a result of channel slopes that are much less steep than the slope that the river could travel if it took a new course. Deltaic and net-depositional settings Avulsions are common in river deltas, where sediment deposits as the river enters the ocean and channel gradients are typically very small. This process is also known as delta switching. Deposition from the river results in the formation of an individual deltaic lobe that pushes out into the sea. An example of a deltaic lobe is the bird's-foot delta of the Mississippi River, pictured at right with its sediment plumes. As the deltaic lobe advances, the slope of the river channel becomes lower, as the river channel is longer but has the same change in elevation. As the slope of the river channel decreases, it becomes unstable for two reasons. First, water under t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Romitan
Romitan (, ) is a city and seat of Romitan District in Bukhara Region in Uzbekistan. The town population was 9,636 people in 1989, and 14,300 in 2016. History Archaeological evidence suggests that the settlement in what is now Romitan was founded before the Arab invasion. Romitan has been mentioned in historical sources since the 10th century. It was a part of the Samanid state. The historian of the 10th century Narshakhi, calling it Ramtin, reports the following data:Ramtin (and now exists near Bukhara, but is called Ramitan) has a large fortress; it is a fortified village. It is older than Bukhara and in some books it is even mentioned under the name of Bukhara. Ramtin had been the residence of tsars since ancient times, and when the city of Bukhara was founded, the tsars began to spend only winter in this village. In the Muslim era the same thing continued. Abu Muslim, — may God's mercy be upon him, — reached this place and lived in Ramtin, and this village was fou ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Paykend
Paykend or Poykent (), an ancient city in Uzbekistan, is located in the lower stream of Zarafshan River and was one of the largest cities of the Bukhara oasis. The city consisted of a citadel, two settlements, and a ''rabod'' (suburb). Paykend is currently under consideration for inscription as a UNESCO World Heritage site. History In the early eight century, the city was a great trade center and was protected by great mudbrick walls and an inner citadel. When the Arab conquests reached the region in the eight century, the population were forced to pay tribute. However, they rebelled in 706, according to some stories due to the Arab governor trying to take advantage of a local girl or possibly simply as the inhabitants did not want to pay tribute any more. The Arab governor of Khurasan, Qutayba ibn Muslim, decided to set an example and besieged the city. He undermined the walls and though the miners died during the collapse of the wall, the city fell. In the aftermath, all fight ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
