The project is aimed at studying hyperaccumulator plants for phytoremediation of soils contaminated with heavy metals in Almaty. Within the framework of the project, in order to ecologize megacities, scientific work will be carried out on the selection of plants - hyperaccumulators for phytoremediation of soils contaminated with heavy metals in Almaty, improvement of its ecological state. This task is relevant, because for Kazakhstan, the implementation of the basic law in the field of environmental protection (Environmental Code of the Republic of Kazakhstan, 09.01.2007) and, in particular, the protection and restoration of land resources (Land Code of the Republic of Kazakhstan, 06.20.2003) is paramount.
Objective of the project
To develop a scientifically substantiated selection of effective hyperaccumulator plants for phytoremediation of soils contaminated with heavy metals in Almaty.
The expected results of the project are:
1. A selection will be made from international scientific sources of hyperaccumulator plants that are most suitable for the soil and climatic conditions of Almaty. On the basis of the selected hyperaccumulator plants, a scientific experiment on vegetation vessels will be planned and laid down. Vegetation vessels will be pre-filled with the soil of Almaty with a certain artificially contaminated concentration of heavy metals. Before sowing the plants, the soil in the growing pots will be subjected to a chemical analysis to determine heavy metals. Next, sowing, care and support of vegetation experiments will be carried out.
2. Primary materials will be obtained on the basis of phenological observation, accounting for plant productivity, chemical analysis to determine heavy metals in soils from vegetation vessels and plants obtained in the process of conducting experiments. Processing and statistical evaluation of the primary material will allow us to investigate the effectiveness of phytoremediation properties in selected and experimental hyperaccumulator plants for the soil and climatic conditions of Almaty.
3. Evidence-based conclusions and recommendations will be developed from the identified highly effective hyperaccumulator plants for phytoremediation of soils contaminated with heavy metals in Almaty, followed by publication of research results in journals included in the Web of Science Q1-Q3 database and KKSON MES RK.
Of all 12 plants grown, only 4 of them showed hyperaccumulatory abilities. The Lamiaceae plant shows the best hyperaccumulative capacity for cobalt (Co). The plant Tagetes patula nana shows the best lead (Pb) hyperaccumulation ability. Plants Brassica napus and Phaseolus acutifolius show the best hyperaccumulating capacity for cadmium (Cd). Echinacea purpurea and Brassica napus plants have dual phytoremediation properties.
Names and surnames of the study group members with their identifiers:
- Yelikbaev Bakhytzhan Koshkinbaevich - scientific adviser
- Tuyebakhova Zoya Kaimovna - Chief Researcher
- Serikov Temirlan Aidarovich - Junior Research Fellow
- Meyizbayeva Kulsara Kabdyrakhankyzy - Engineer
List of publications:
1. B. K. Yelikbayev, Marcela C. Pagano, G. A. Jamalova. Hyperaccumulator plants for phytoredomation of soil contaminated with heavy metals //Bulletin of NAS RK (Вестник НАН РК) 2020. Volume 5, Number 387 (2020), P.34–40. ISSN 1991-3494 .
2. Yelikbayev B.K., Nicolas Kalogerakis*, Imanbek F.M., Tuiebakhova Z.K., Jamalova G.A., Study of plants-hyperaccumulators for phytoremediation of soils contaminated with heavy metals in Almaty. Open access journal Q2-Q3. Рассматривается журналом.