ADER 23.1.2 Studies on spatio-temporal variation of precipitation chemistry

Total project budget: 1.100.000 Lei

Funding source: Ministry of Agriculture and Rural Development

Implementation period: 2023 – 2026

Project contractor:  Research and Development Institute for Wildlife and Mountain Resources Miercurea-Ciuc (ICDCRM)

-Thematic maps and distribution of precipitation chemistry in the northern and central group of the Eastern Carpathians, Banat Mountains;

-Determination of geochemical parameters of atmospheric precipitation (neutralization factors, enrichment coefficients, intake of marine salts, availability index of NH4+, degree of neutralization of NH4+);

-Determination of fractional acidity and the ratio of potential acidity to potential neutralization;

-Calculation of wet deposits: ion intake per unit area (ha);

-Determine the effect of climate change on precipitation chemistry as a function of long-distance transport and air masses.

-Source analysis (PCA, Spearman correlations);

-Fertilization schemes, to determine the sensitivity of some plant species to the ionic intake at foliar and edaphic level, respectively the participation of some chemical species in the determination of acidification / eutrophication values of different geochemical environments.

Of increasing importance is the impact of precipitation chemistry on soils, crop and spontaneous vegetation, respectively the influence of agricultural techniques on atmospheric precipitation (ammonia emissions, methane emissions, stubble burning). The reduction of surface emissions is stipulated by Directive 2016/2286 on the reduction of national emissions on certain pollutants taken over by Law 293/2018. The importance of the project and the novelty element also lies in completing the level of knowledge for the LULUCF regulation (Land Use, land use change and forestry) 2018/841 amended by AFOLU (Agriculture, Forest and Other Land Use).

This project aims to analyze the variability of the chemical composition of precipitation chemistry on the soils of different mountain areas, in conditions of climate change by assessing changes in air mass circulation and long-distance transport of different pollutants. The identification of sources to the chemical composition of precipitation and the contribution of different pollution sources on edaphic factors corroborated with the loss of evapotranspiration determined in the study areas are constituent elements in order to outline environmental policies and integrate the impact of pollution in agriculture.