ASPECTS OF NATURAL AND ANTHROPIC IMPACT ON THE SACALIN-ZATOANE CORE AREA WITHIN DANUBE DELTA BIOSPHERE RESERVE

Radu Lăcătușu, Ioan Munteanu, Constantin Grigoraș, G. Gheorghiu, C. Ulvoczi

Abstract


Natural and anthropic impact within this area has contributed to significance changes in soil cover. Laying some channels orientated NW-SE has determined drainage of soil, disappearance of marsh and beginning of soil forming process. Thus have arised Marshsols, Humic Gleysols, Glei-Psammosols. It was taken leaching of salts and transport there to see. It was chanced the ratio between salts, it has decreased chlorides and has increased the contents of sulphates and bicarbonates. It was emphasized high level of heavy metals in soils, higher than the lithospheric abundance and pedospheric abundance (Cd, Ni, Pb) or only pedospheric abundance (Cu, Zn). The heavy metals are transported from deltaic area to costal marine area

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DOI: http://dx.doi.org/10.15551/fppzt.v2i1.398

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