Open AccessLand area increase in Ukrainian part of the Danube delta
Author(s) -
В. М. Стародубцев,
AUTHOR_ID,
Maryna Ladyka,
AUTHOR_ID
Publication year - 2021
Publication title -
naukovì dopovìdì nacìonalʹnogo unìversitetu bìoresursìv ì prirodokoristuvannâ ukraïni
Language(s) - English
Resource type - Journals
ISSN - 2223-1609
DOI - 10.31548/dopovidi2021.06.003
Subject(s) - delta , ukrainian , bay , flood myth , river delta , deposition (geology) , hydrology (agriculture) , vegetation (pathology) , channel (broadcasting) , wetland , physical geography , flooding (psychology) , erosion , geography , geology , environmental science , oceanography , geomorphology , ecology , archaeology , structural basin , philosophy , psychotherapist , aerospace engineering , linguistics , pathology , engineering , biology , psychology , medicine , geotechnical engineering , electrical engineering
The quantitative indicators of land growth in the Ukrainian part of the Danube delta are considered. Comparison of Landsat satellite images in three key areas of the delta showed that for the period 1975-2020 the area of wetlands at the mouth of the Сhilia channel increased by 1448 hectares due to the accumulation of sediments between the Starostambul and Limba branches and their overgrowth with vegetation. In the area of the Bystroe channel, the area of new lands increased by 1037 hectares due to the artificial deepening of this channel for the Ukrainian ships passage into the Danube River and the deposition of sediments along the coast. A slightly smaller increase in land cover (797 ha) was found in the northern part of the coast of the Ukrainian part of the delta, where saline and carbonate soils are formed. In the future, active land growth is expected in the Musura bay between the mouths of the Starostambul and Sulina branches, ie at the contact of Ukraine and Romania. Some changes in these parameters are expected after a powerful flood in 2021, which will become known after the establishment of a relative equilibrium between the processes of accumulation and erosion after this extreme event.