File Geodatabase Feature Class
Tags
Park Forests, Schweizerischer Nationalpark, Swiss National Park, forest map, Engadin, Parc Naziunal Svizzer, Graubuenden
See general description
The layer WALD_KURTH contains the geometry of the forest stands with selected attributes recorded in the study of Kurth, Weidmann and Thommen (1960). In the 1960's the Swiss Federal Institute for Forest, Snow and Landscape Research (Birmensdorf, Switzerland. Formerly: Eidg. Anstalt für das forstliche Versuchswesen) initiated a research programme to investigate different sampling methods and to study the forest situation in the Swiss National Park. Maps on the different forest categories, timber capacity (Holzvorrat), occurence of wildlife damage etc. resulted. Although dating from 1967, the data set from Kurth et al. is important for the research activites in the Swiss National Park. Due to the altitude and the climatic conditions, vegetation dynamics are very slow in this area. Hence, these data can be used for the comparision with newer data or in vegetation modelling in general.
There are no credits for this item.
The data set mentioned above belongs to the Scientific Comission of the Swiss NationalparkWNPK. For scientific purposes concerning the Swiss National Parc these data can be obtained via the GIS-SNP-WEBMASTER. An individual contract between the data user on one side and the WNPK and the Swiss National Park GIS on the other side settles the intended use, the duration of use, the copyright for publication etc. of the delivered data.
Extent
West | 10.035902 | East | 10.320033 |
North | 46.777519 | South | 46.576362 |
publication date
For scientific use, others on request
The data set mentioned above belongs to the Scientific Comission of the Swiss NationalparkWNPK. For scientific purposes concerning the Swiss National Parc these data can be obtained via the GIS-SNP-WEBMASTER. An individual contract between the data user on one side and the WNPK and the Swiss National Park GIS on the other side settles the intended use, the duration of use, the copyright for publication etc. of the delivered data.
mail to Ruedi Haller, rhaller@nationalpark.ch
Internal feature number.
ESRI
Feature geometry.
ESRI
Length of feature in internal units.
ESRI
Area of feature in internal units squared.
ESRI
Internal feature number.
ESRI
Feature geometry.
ESRI
Area of feature in internal units squared.
ESRI
Perimeter of feature in internal units.
ESRI
Internal feature number.
ESRI
User-defined feature number.
ESRI
Stand number (Überbestandsnummer, see Kurth et al., 1960, pp. 230/264). Zero for polygons not representing forest stands (areas covered by Pinus Mugo and not forested areas)
Vorwiegen der Wildschäden, in Prozent der Stichproben. Damages caused by wild ungulates.
0 bis 20 cm hoher Lärchenjungwuchs, Stammzahl pro Hektar. Growth of young larche trees, stems per hectar
0 bis 20 cm hoher Arvenjungwuchs, Stammzahl pro Hektar. Growth of Pinus cembra, stems per hectar
tree species
Optional second tree species (if present, then HOLZ_MIX indicates whether HOLZART1 is predominant over HOLZART2)
For polygons with more than one recorded tree species (HOLZART2 not empty), HOLZ_MIX indicates whether HOLZART1 is predominant over HOLZART2 or whether they are equally represented ("H1 > H2" or "H1 = H2"). This information is derived from the symbolization on the source map (relative width of horizontal bands)
Concatenation of numeric codes for HOLZART1, HOLZART2 and HOLZ_MIX. May be used for symbolizing tree species
The layer WALD_KURTH contains the geometry of the forest stands with selected attributes recorded in the study of Kurth, Weidmann and Thommen (1960). In the 1960's the Swiss Federal Institute for Forest, Snow and Landscape Research (Birmensdorf, Switzerland. Formerly: Eidg. Anstalt für das forstliche Versuchswesen) initiated a research programme to investigate different sampling methods and to study the forest situation in the Swiss National Park. Maps on the different forest categories, timber capacity (Holzvorrat), occurence of wildlife damage etc. resulted. Although dating from 1967, the data set from Kurth et al. is important for the research activites in the Swiss National Park. Due to the altitude and the climatic conditions, vegetation dynamics are very slow in this area. Hence, these data can be used for the comparision with newer data or in vegetation modelling in general.
See general description
publication date
For scientific use, others on request
The data set mentioned above belongs to the Scientific Comission of the Swiss NationalparkWNPK. For scientific purposes concerning the Swiss National Parc these data can be obtained via the GIS-SNP-WEBMASTER. An individual contract between the data user on one side and the WNPK and the Swiss National Park GIS on the other side settles the intended use, the duration of use, the copyright for publication etc. of the delivered data.
Due to the limited geometric quality of the available base maps and the highly generalized representation of the forest
stands, the geometric accuracy must be considered low. It can be noted, for instance, that apart from a few obvious
discrepancies between the 1:25'000 maps and the article maps (missing borders etc.), there are also significant
gradual differences in the shape of forest stand polygons. No quantitative accuracy measures have been derived,
though.
check of completness not possible
unknown
unknown
The geometry of subareas and forest stands has been digitized manually from paper maps at a scale of 1:25'000. Where appropriate, the stand geometry has been used to construct the subarea boundaries. The forest stand attributes have been entered based on the color codes from the maps in the article of Kurth, Weidmann and Thommen (1960). In this process and during the quality checks, some discrepancies between the geometry on the 1:25'000 maps and the maps in the articles have been detected. In general, the version in the 1:25'000 maps has been assumed as correct (the discrepancies are documented in the layer PROBLEME).
After data automation and QA, the attribute codes used beforehand in the forest stand layer were replaced with short textual descriptions of the corresponding classes, considered more adequate for analysis. Also, a combined code of the tree species fields suitable for symbolization (field HOLZCODE) has been derived.
The data automation phase has been planned and carried out by C. Grados and R. Schöning of Schöning & Grados Geoinformatik.
mail to Ruedi Haller, rhaller@nationalpark.ch