Adaptation of geomorphometry for research of past and present ecosystems

Morphometric variables as predictors in models for soil mapping

Ideology of predictive mapping is based on application of predictors that can be relatively easy measured on large areas with fine resolution. The morphometric variables are one of the most informative predictors in this context. The general goals of this research direction are: (i) usefulness of morphometric variables for models of predictive mapping; (ii) application of morphometric variables for data disagregation; (iii) combination of morphometric variables with other types of predictors in one model.
 

 Poster 1 “Morphometric variables as predictors of soil carbon spatialvariability”

Geomorphometrical detection and description of artificial structures on the land surface

Nowadays LiDAR (Light Detection and Ranging) technology is actively used for the survey of large territories with finest resolution. Analyse of digital elevation models from LiDAR by morphometric variables reflects many hidden micro structures on the land surface. The goals of this research direction are (i) description of the artificial structures on the land surface and identification of traces that indicates former constructions; (ii) developing of algorithms for the automatic extraction of the artificial structures from digital elevation model.
 

Poster 2 “Geomorphometrical detection and description of artificial structures on the land surface”

Quantification of slope (colluvial) sediments spatial distribution

Colluvial (slope) deposits are informative geoarchive indicated transformation of past landscapes with fine spatial resolution. Volume of the colluvial deposits is mainly used for the reconstruction of past soil erosion. In this context the research direction is generally focused on: (i) methodology of precise mapping of colluvial deposits spatial distribution; (ii) relationships of colluvial deposits with morphometric variables on detail scale; (iii) problems of slope sediment delivery in small catchments.
 

Poster 3: Quantification of slope (colluvial) sediments spatial distribution

Landforms as a natural resource for different types of ancient human activities*

Humans preferred different landscape elements for different types of land use due to natural, social and other reasons. However, the identification of such elements in retrospective is a difficult task. Soils, hydrology and vegetation can be sufficiently transformed in a time scale of several hundred years. Probably, landforms are one of the most stable landscape elements in a time frame of the Holocene. Types of former human activities at these landforms can be identified based on the information from archaeological contents. The investigations focused on three main goals: (i) detection of spatial distribution of archaeological monuments on landforms; (ii) calculation of the priority of a landform’s selection for different types of former constructions or land use; (iii) assessment of landscape element size that was optima for the ancient land use. The landforms, which are defined by the signature of curvatures and calculated for the relatively large grid space, are the best objects for statistical investigations in this direction.

* in cooperation with the Institute of Pre- and Protohistoric Archaeology, Kiel University
 

Poster 4: Landforms as a natural resource for different types of ancient human activities

Quantitative geomorphometric analysis of the submarine surface*

A high amount of bathymetric data in form of digital elevation models (DEMs) was obtained during the last decade. Quantitative analysis of this data israpidly growing field of research. The application of geomorphometrical methods can help to gain a better understanding of submarine landscape development and underlying processes. However, the methods of geomorphometry were primary developed for the terrestrial landscapes. From one hand, for the goals of (i) the detection of hidden structures and errors on the submarine surface the methods of geomorphometry can be applied without modifications. From another hand, such questions as: (ii) organisation of submarine surface on different hierarchic levels, (iii) processes of mass movement on the submarine surface and (iv) modelling of spatial distribution of sediments as well as parameters of benthic ecosystems needs development of a new theoretical basement. First of all the search for new meanings of morphometric variables in conditions of the submarine landscapes should be conducted.

* in cooperation with Institute of Geosciences, Kiel University and EGEOS GmbH
 

Poster 5: Quantitative geomorphometric analysis of the submarine surface