Authors are invited to submit abstracts (800 words - max 1 page A4) in electronic form until 30 January 2018. Submitted abstract should include the title, author, address, body of abstract, and six key words. Please list the full first and last names of each author. Abstracts must concisely describe the study or topic in detail. Abstracts received will be published in the Book of Abstracts (on paper). Author(s) of the papers presented at the conference are encouraged to submit article to the following journals: Annals of Valahia University of Targoviste - Geographical series and Lakes reservoirs and ponds.