Hydraulic calculation of reliability and safety parameters of the irrigation network and its hydraulic facilities

Abstract

Nowadays, more than 155.7 thousand km of irrigation networks are operated by WUA, farms and clusters. 95% of irrigation networks were built and commissioned in the 80s of the last centuries. The parameters of the irrigation canals, built in the 70-80s of the XX century, are set for irrigation of cotton and alfalfa irrigated agriculture during the growing season 170-210 days. Irrigation networks have been designed for this crop rotation scheme. Since 1993, the rotation scheme has changed to cotton-wheat. Irrigation networks began to operate continuously throughout the year after the transition of agricultural production to the cultivation of autumn cereals, which require irrigation from October to May. As a result, it has become difficult to carry out repair work on irrigation networks. In addition, irrigation networks have been designed, built and operated by adapting crops to traditional irrigation systems. In recent years, large-scale work has been carried out on the widespread implementation of water-saving technologies in agriculture.

Study of technology to reduce formation of collector-soil water in saline soil conditions

“…As a result of the irrigation of these soils, the level of seepage water in the area fluctuated due to the constant water leakage from canals and irrigation channels. At the beginning of the experiments (at the beginning of the growing season), i.e., in 2022, soil sections were dug, and genetic layers determined soil morphology [13][14][15].…”

Socio-Economic Impact on Water Conservation Implementation in Uzbekistan

“…The melting of glaciers poses a significant concern for the Central Asian countries, as these glaciers serve as a vital water source for drinking, irrigation, and hydropower. The findings of the study indicate that the region is confronted with a severe water crisis, necessitating immediate action to combat the impact of climate change [4][5][6][7][8][9][10][11].…”

“…The study also predicts that an additional 15-20% of glaciers in the area are likely to melt by 2030.The melting of glaciers poses a significant concern for the Central Asian countries, as these glaciers serve as a vital water source for drinking, irrigation, and hydropower. The findings of the study indicate that the region is confronted with a severe water crisis, necessitating immediate action to combat the impact of climate change[4][5][6][7][8][9][10][11].The forthcoming accessibility of water assets in the locale will be substantially impacted by the rapid dissolution of glaciers, serving as the region's primary water supply. Additional climate change elements, like increasing temperatures and shifts in precipitation trends, will also significantly contribute to this circumstance.…”