صغد
The irrigation systems of Tajikistan cover 737,700 ha of land, of which 300,000 ha are zones of machine irrigation. They are subdivided into 4 categories according to the technical equipment: (1) modern irrigational systems (282,000 ha), (2) irrigation systems with main channels without anti-filtration cover and the lack of hydrotechnical facilities (202,000 ha), (3) irrigation systems with rehabilitated networks and large main channels (200,000 ha), (4) irrigation systems which are not adequately equipped (53,700 ha). Pumping stations serve 40% of the irrigated areas, 64% of which are in the Sughd Province. An estimated 20% of irrigated lands in Tajikistan suffer from water shortages caused by poor regulation of river flows. In the area of the Istravshan (30,000 ha), only 55% of water demands are met. In Kyzyl-Su–Yah-Su basin in Kulob area (60,000 ha) receives only 65% of required water. The same situation prevails for 12,000 ha of land in Hisor. Agricultural irrigation techniques have remained unchanged over the past few years and are principally performed through furrows. Before 1990, only 3,500 ha of land received water through flexible pipes that delivered it to furrows and rain water irrigation was used for 296 ha. Introduction of new technologies (rain-drop, underground, and drip irrigation) will multiply water saving rates by 2 to 3 times.