Duinen en duinvalleien-Een landschapsecologische studie van het Nederlandse duingebied.. (Dunes and dune valleys-A landscape ecological study of the Dutch coastal dune area)
An overall review of the dutch coastal dune area has been given. In spite of the fact that this area, in geomorphological as well as in ecological respect, is one of the best preserved landscapes of the Netherlands many changes have occurred since
1850. Some of the changes have natural causes, most changes were induced by man. Maps on a scale 1:100.000 indicate the present ecological, geomorphological, hydrological and vegetational situation as well the changes in the period 1850-1970. (ALS).
Het verband tussen de geometrie van de getijdenduinen en de kenmerken van het bodemsediment in de maritieme Schelde
characteristics is striking. A comparison between the geomorphological and sedimentological maps revealed some relations. The subaqueous dunes tend to have the largest dimensions in well sorted sediment that consists mainly of sand, contains relatively low amounts
De aanzanding in de havengeul te Blankenberge in het kader van de algemene morfodynamiek van de Belgische kust Silting up of Blankenberge harbour entrance in accordance with the general morphodynamics of the Belgian coast
The shallowing of the entrance channel is due to a complex of coastal processes acting with different intensities at different localities. Residually northeasterly directed longshore subaquatic as well as eolian sediment movement is interrupted
Toelichtingen bij de Geologische kaart van Nederland 1: 50000. Blad 37 W Rotterdam West.. (Notice explicative de la carte gédogique des Pays-Bas. Feuille 37 W Rotterdam Ouest)
A description of the area west of Rotterdam. The whole area is covered by holocene deposits of about 20 m. thickness. The Pleistocene geology has been described by S. Jelgersma, the deeper subsurface geology by H. A. van Adrichem Boogaert
. The subsurface geology is well known from deep boreholes and seismic surveys in search for oil and gas. (AIS).
'n Ondersoek van die puinafsettings in die noordelike knakpunt van die Daspoortrand naby Pretoria. (Investigation of deposits in the northern knickpoint of the Daspoort ridge near Pretoria)
In an effort to obtain more information about the circumstances of the formation of deposits of colluvial material, which are a common occurence in the Pretoria vicinity, profile descriptions, field surveys, as well as physical and chemical
Kleine gemeenten in een stadsgewest: een empirische studie van suburbanisatie van bevolking rond Utrecht. (Small municipalities in a city-region: an empirical study of residential suburbanisation around the city of Utrecht)
In this study of residential suburbanisation, special attention is paid to the influence of (relative) distance in terms of travel time, as well as to the concepts of the frictionless area and the critical isochrone of Getis. The outer limit
The AA. report how a pioneer liverwort, Nardia succulenta, stimulates accretion of volcanic ash, creating layers adhering to vertical bare cliffs and bridging fresh volcanic boulders, as well as creating habits that probably favour the liverworts
and setting of these drumlins the conditions for drumlin formation at this locality as well as the implications for drumlin genesis in general are discussed.
Bijdrage over de verdeling van de gemiddelde neerslagintensiteit in België. (Contribution to the distribution of mean precipitation intensity in Belgium)
An annual index of precipitation intensity was defined as the sum of the monthly mean maximum hourly precipitation intensities. This annual index, as well as mean monthly precipitation intensity, can now be derived from a regression line
De sociaal-geografische bemoeienis met stad en stedelijk systeem. Aperçu van de nederlandse stadsgeografie sinds 1950 The human-geographical exertion with the city and the human system. Survey of the Dutch urban geography since 1950
This treatise deals with the development of Dutch urban geography. The author stresses the importance of social conditions as well as the rich tradition of the Amsterdam sociografie and the Utrecht/Groningen sociale geografie for modern Dutch urban
Penetration testing is basically aimed at the assessment of soil mechanical properties, especially the bearing capacity of the soil. It can, however, be applied to determine the dimensions and composition of lithological units as well.
In this paper we present new results from sediment-petrographic analyses and discuss the vertical as well as cross-valley compositional variation in till. - (l'A)
territory, and the programme can be regarded as an example of a survey applicable to environmental planning and management as well as to the standard geological, pedological and hydrological surveys. (AIS).
From a development viewpoint this paper seeks to present the main long-term characteristics of the current strategy for agricultural development in Brazil. It provides an evaluation of effects of previous policies and programmes as well as scope
Atmosferische fluxen van zware metalen naar de Noordzee
The paper is specifically dealing with that aspect of North Sea pollution. Gasiform as well as particulate matters are emitted in the atmosphere via burning and other pollution processes. After physical dispersion and chemical transformation