Ecological-meliorative monitoring of irrigated lands of the Lower-Dniester irrigation system in Belyaevsky district
Journal Title: Вісник Одеської державної академії будівництва та архітектури - Year 2017, Vol 1, Issue 68
Abstract
The tasks of ecological and reclamation monitoring of irrigated lands in the Lower-Dniester District of the Belyaevsky District have been solved by studying the level and hydro chemical regime of groundwater, salinity and alkalinity of the soil-grounds of the gravity ventilation zone, the quality of irrigated waters and the estimation of the ameliorative state of irrigated lands. It has been established by researches that in the irrigation zone of the Lower Dniester Basin the groundwater regime has assumed a stabilized character, for the period of 2012 ... 2016 on the prevailing territory of irrigated land, groundwaters lie at depths of more than 5 m (14418 ... 16317 hectares, which is 54.8 ... 78.4% of the total irrigation area). On the drainage areas of land with depths less than critical values permeated from 9 to 100 hectares, which is 0.2 ... 2.2% of the total drainage area. By irrigation of southern blackearth with low-salinity Dniester water (0,4 ... 0,6 mg / dm) in the watershed plateau and high river terraces of the Nizhne-Dnestrovsky OS, the analysis of water extracts records in the multi-year section the intensive eluviation of water-soluble salts of the aeration zone. In addition, an analysis of the results of salt suspension surveys showed that during the last 30 years salinized and solonized soils on the lands of the researched area have not been identified. Monitoring of the quality of irrigation water showed that, according to agronomic and ecological criteria water of the Dniester River is suitable for irrigation without restriction. Therefore, it has been established by reasearches that, on the whole, the ecological and reclamation conditions in the zone of influence of the Lower Dnestrovsky OS in the territory of the Belyaevsky District caused no particular concern. Provided that science-based agrotechnics of production on irrigated lands is observed, high and stable crop yields can be obtained. Particular attention should be paid to the observance of recommended irrigation regimes on the sloping lands of the Dniester valley.
Authors and Affiliations
V. S. Osadchiy, A. P. Blazhko
Keywords
Related Articles
- EP ID EP326064
- DOI -
- Views 121
- Downloads 0
Optimization groundconcrete composition for filling of underground workings
Construction of buildings and structures in Odessa region is complicated by the presence of large areas of soil subsidence and undermined territories of underground mine workings (catacombs). They generate a high probabi...
Numerical modeling of cyclic temperature operating condition on SP «Lira-Sapr»
The study of the stress-strain state caused by forced temperature deformations requires to take into account the changes of the physical and mechanical properties of concrete in time, as well as its creep. There are two...
Constructive solutions of the bell tower of the re-created transfiguration cathedral in Odessa, Ukraine
The Transfiguration Cathedral was founded and grew along with the City of Odessa. It became the largest temple for spiritual life for citizens within the NW Black Sea region in the early twentieth century. The Cathedral...
The generalised dynamical problem of thermoelasticity for the hollow sphere
The generalized dynamical problem of thermoelasticity for the hollow sphere has been considered. It is supposed that the propagation of the temperature is symmetric with respect to the center of the sphere. The temperatu...
Determination of the influence of subway on the load-bearing structures of buildings with numerical methods
The article is devoted to numerical investigation of the vibration impact of subway on load-bearing structures of high-rise buildings. Parameters of the dynamic action of the rail transport (train, tram, metro) and the r...