Optimization Methods for Hydroecological Monitoring Systems

Shvydkaya

et al. 2020

Plants

A biogeochemical study of more than 20,000 soil and plant samples from the North Caucasus, Dzungarian Alatau, Kazakh Uplands, and Karatau Mountains revealed features of the chemical element uptake by the local flora. Adaptation of ore prospecting techniques alongside environmental approaches allowed the detection of geochemical changes in ecosystems, and the lessons learned can be embraced for soil phytoremediation. The data on the influence of phytogeochemical stress on the accumulation of more than 20 chemical elements by plants are considered in geochemical provinces, secondary fields of deposits, halos surrounding ore and nonmetallic deposits, zones of regional faults and schist formation, and over lithological contact lines of chemically contrasting rocks overlain by 5–20 m thick soils and unconsolidated cover. We have corroborated the postulate that the element accumulation patterns of native plants under the natural geochemical stress depend not only on the element content in soils and the characteristics of a particular species but also on the values of ionic radii and valences; with an increase in the energy coefficients of a chemical element, its plant accumulation decreases sharply. The contribution of internal factors to element uptake from solutions gives the way to soil phytoremediation over vast contaminated areas. The use of hyperaccumulating species for mining site soil treatment depends on several external factors that can strengthen or weaken the stressful situation, viz., the amount of bedrock exposure and thickness of unconsolidated rocks over ores, the chemical composition of ores and primary halos in ore-containing strata, the landscape and geochemical features of sites, and chemical element migration patterns in the supergene zone.

Section: Plants Of Explored and Mined Depositsmentioning

confidence: 99%

Element Accumulation Patterns of Native Plant Species under the Natural Geochemical Stress

Shvydkaya

et al. 2020

Plants

“…• large basin under review shall be divided into private basins, the dimensions of which generally depend on the spatial resolution of weather models 'outcome', computing resources, software, geoinformation basis, etc. Particularly, if any GIS technology is used for delineation of private basins, then SW and geoinformation basis will determine limitation of size from below [Pivovarova 2016). The abundance of small private basins, the precipitations of which can only be assessed using weather models, and stream flow is unknown, increases the uncertainty of predicted stream flow in main-stream station; therefore, moderate size of a private basin is recommended to be taken as one of the objective variables (based on minimizing the objective function in main-stream station);…”

Section: Prediction Procedure Depending On Basin Classificationmentioning

confidence: 99%

Method of Prediction the Stream Flows in Poorly Gauged and Ungauged Basins

Pivovarova¹,

Kuzmin²,

Shemanaev³

et al. 2019

J. Ecol. Eng.

Self Cite

The underlying principles and content of new technology for automated hydrological predictions of poorly gauged and ungauged basins were reviewed herein. Basin classification principles depending on the availability and spatial-temporal discreteness of the observations of meteorological and hydrological variables were proposed. The prediction procedure for large river systems insufficiently covered by hydrometeorological survey was outlined. The prediction methodology for Sông Sê San river basin, which is the left tributary of Mekong river, was tested. The possible options for preliminary calibration and validation of MLCM3 predictive model (Multi-Layer Conceptual Model, 3 rd generation), developed within the framework of set task, were described. The software, implementing the streamflow prediction method for ungauged and poorly gauged special basins of large rivers tributaries, was tested.

“…The resulting waste (potential soil), as far as education is transferred to third-party organizations for placement on landfills. The landfills are located at a relatively large distance from the waste generation areas, the haulage of trucks is more than 50 km [7][8]. There are many directions for the application of clay, such as: the production of building materials, refractory materials, ceramic products, the production of drilling fluids, use as a sorbent [9], and also, the preparation of soil mixture [10][11].…”

Section: Introductionmentioning

confidence: 99%

Development of Bioproductive Soil Mixtures Using Subway Construction Waste for The Purpose of Improving the Territory of The City

Koshchaev*,

Shichiyakh,

Sidorenko

et al. 2019

IJEAT

The article presents the results of research on the bioproductivity of ecologically clean waste generated during excavation work on subway construction sites and other underground construction. It is proposed to use waste as one of the components of soil mixture preparation. In the course of the work, soil mixtures varied in relation to the waste/peat soil. A number of laboratory experiments on the germination of a lawn grass mixture, widely used in the improvement of cities, was set up. Based on the results of the work, recommendations were proposed for compiling a methodology for studying artificial soil mixture