No abstract

This research focuses on the use of HySpex hyperspectral images for verification of twodimensional hydrodynamic modelling of open-channel flow over loose bed (CCHE2D) and assessment of water quality in the Zegrze Reservoir. The CCHE2D hydrodynamic model results show the distribution of hydraulic parameters of water flow and the sediment concentrations in the reservoir. HySpex images were used to obtain remote sensing indices of water quality. The images were compared to the hydrodynamic model results and field measurements. The analysis of hydrodynamic model results and hyperspectral image indices show the spatial distribution of the water's physico-chemical properties in the reservoir, and poor mixing of the Bug River and the Narew River at their confluence. This study shows that there is synergy potential in using hydrodynamic modelling results and remote sensing indices of water quality for analysis of the reservoir's water quality.

At present, geoecology-related discussions are focused on the ability to provide systematic and universal landscape description in a variety of space and time scales, as well as in different functional systems. This requires the development of landscape schemes in the form of hierarchical structural and functional systems. This paper has therefore focused on concepts of crucial importance for landscape system description, such as scale, spatial range and structure and landscape functioning. The definition of these concepts and their characteristics are crucial for the ability to describe a landscape system, in terms of its structural and functional composition and valuation, as well as assessment of landscape and ecosystem functions and services. Therefore, the analysis allows a demonstration of approaches discussed in the subject literature and the authors' opinions.

Research assumptions and methodologies The purpose of the study is to analyse land use near Płock to provide the basis for the description of structural characteristics of the landscape in terms of durability, and nature and speed of change (Fig. 1). Microregions (Richling, Malinowska, Szumacher 2012) provided the reference field, with the use of the patches of mosaic land use pattern as the key element determining diversification.