Protection of water and land, terrestrial ecosystems and wetlands depend on water which are regarded as a national treasure, requires the establishment the sustainable management of resources, including preventing degradation and protection against the deterioration of their condition. The research are aimed at evaluating the possibility of using modern geospatial data such as DTM, aerial photography and digital images and their visualizations using GIS tools to acquire natural surface water, areas at risk of flooding and pollution associated with ground water and surface runoff including agricultural land. The study was conducted within the city of Koszalin in the typical urban and suburban develop-ment. The results show that the developed methods are more cost effective and less labor intensive than traditional, and characterized by high accuracy of determining the boundaries of areas. ...
Designation of lands for development is a vital process. Regrettably, natural conditions are often disregarded in spatial planning. The research focuses on the analysis of soil conditions and relief for the purposes of exclusion of lands from development. It was assumed that lands of excessive soil moisture content and wetlands are often located in depressions. Such lands should be excluded from development or actions should be taken to limit the negative impact of the said factors. It was also investigated, whether such lands are considered in communal studies of conditions and directions of land use. SAGA-GIS and ArcMap software was used in the research, as well as data computed in OCTAVE environment. The research proves that the existing as well as contemplated development plots are sometimes located in areas of poor bearing capacity, excessive soil moisture content, as well as in closed drainage basins. It should be emphasized that the research results unambiguously indicate that analysis of suitability of given terrains for development is not taken into consideration for the purposes of drafting spatial planning documents. Approximately 25% of the investigated development area should be excluded from development. In rural areas such exclusion is particularly feasible due to greater availability ...
