Transformation of water and land use in irrigated agriculture in Siberian regions (1990–2020)

The transformation issue of water and land use in irrigated agriculture Siberian regions remains insufficiently studied. study this issue, especially over a long period, is very relevant. From 1990 to 2020 the area Siberia decreased from 526 thousand hectares 334 hectares. In some subjects federation, irrigation by 2-2.5 times Republic Khakassia, Novosibirsk region, it slightly. 1990, 15.9 (i.e., 3% all land) were not used agricultural production largely due soil salinization waterlogging. 2020, there 6.8 such land. It necessary increase share fodder crops crop rotations improve fertility as well livestock products. Due write-off worst lands (Republic Tyva, Tomsk region), an with good reclamation condition decrease unsatisfactory condition. general, ameliorative District has noticeably decreased, 2010 2020. Lands equipped collector-drainage network are available only Altai Territory Omsk Region. requiring capital work technical level systems sharply increased (from 10–25% 80–90% 2020). authors found that actually progressively 461 000 64 number sprinkling machines installations 17 times, volume consumption – ten times. recent years state support for entities engaged mining on reclaimed been strengthened.