The main criterion is the distribution of Pseudoscaphirhynchus species and other fishes preferring flatland sections, plain lakes, and channels with slow to moderately running water. Supplemental Content Full text links. The high percentage of drainage water demonstrates that irrigation actually consumes only about 45—50 percent of total agricultural withdrawals CAWaterInfo, From west to east, the main rivers include the Shirin Tagab, the Sarepul, the Balkh and the Khulm rivers. Water resources management in the Central Asia region faces formidable challenges.
Water and Adaptation Interventions in Central and West Asia
More water is predicted to flow into the basin over the next 20 years, but to decline rapidly and unprecedentedly after that. This ecoregion only encompasses the lower part of the drainage below the Zarafshan Valley in the Samarkand region of Uzbekistan. Keep Exploring Britannica Antarctica. Rivers on three worlds tell different tales. It is naturally present in the Zarafshan River, and only in the lower reaches of the Surkhob River in the Amu Darya system. In return, the upstream got energy supplies in the form of gas and coal to cover winter energy demands.
Amu Darya - definition of Amu Darya by The Free Dictionary
The northwestern elongation of the ecoregion includes the Karakumskiy Canal along the northern slopes of the Kopetdag Range. Your email address will not be published. The former will impact the seasonality of the runoff whereas the latter will at least temporarily increase average annual flows. Upon receiving news of the breaching of the dam in , Glukhovskoj immediately reported on the urgent necessity of reconstructing the dam. But Nikolaj Konstantinovich attributed an enormous significance to the discovery of the Kelif Uzboj, all the stories he had collected strengthened his belief that in ancient times the Amu Darya was forced to change its flow as a result of man-made dams. It flows swiftly until it reaches the Kara Kum where its course braids into several channels. That is, the water resources of Central Asia were managed so as to maximize crop production.
Because of significant losses in the desert areas, and because of major agricultural water withdrawal, the flow reaching the Aral Sea is limited to a small percentage of these annual flows. Sazonov proposed the follow-up project of irrigating the Trans-Caspian region with the waters of the Amu Darya. Glukhovskoj, should be prosecuted, and the book should be banned forever, for holding harmful and deceitful ideas. The Toktogul Dam, the largest of the lot, was finished in and served to control the inter-annual variability of water resources and to ensure that there would always be sufficient water for irrigation. Petersburg the request to allow Nikolaj to work. Despite high-level tensions between countries, water cooperation is thriving on the tributaries of the Syr Darya. Part of the hydropower produced during irrigation water-releases in spring and summer was conveniently utilized in the downstream for driving lift irrigation and vertical drainage pumps along the 20, miles or so of irrigation channels.