The Impact of Organic and Intensive Agricultural Activity on Groundwater and Surface Water Quality

The poor condition of surface water is still a problem in many countries, including Lithuania. To assess the impact organic agricultural production on groundwater and quality Lithuania, samples from rivers other bodies are usually studied, leaving properties fields unknown. Samples river collected both intensive farming bordering studied were investigated this study. study was conducted five located Nemunas River Basin District 23 cultivated neighboring fields, where wells drilled 4–5 m deep for sampling. All corresponded to values good very terms their ecological status, according PO4-P NH4-N. According total P value, one did not correspond or status. N four meet We found that, with exception farm, pH, P, N, NO3-N, as well concentrations NH4-N PO4-P, farms lower compared areas. This suggests importance ground sampling addition surveys studies related production.