# Mean skeletal fraction of the soil

A thematic map of the Atlas of Switzerland, the national atlas published by ETH Zurich. The map is drawn in the browser; this file describes it and lists its variants and links, but not the data values shown on the map.

- Map: https://atlasderschweiz.ch/en/theme/mean-skeletal-fraction-of-the-soil/
- Short title: Skeletal fraction
- Map id: 251
- Categories: Nature and Environment › Soil › Soil properties
- Keywords: Soils
- Published: 2016-05-31
- Last revised: 2019-02-26
- Content language: English
- Other languages: [Deutsch](https://atlasderschweiz.ch/de/thema/mittlerer-skelettgehalt-des-bodens.md), [Français](https://atlasderschweiz.ch/fr/theme/pierrosite-moyenne-du-volume-du-sol.md), [Italiano](https://atlasderschweiz.ch/it/tema/contenuto-in-scheletro-medio-del-suolo.md)

## Description

Rock fragments are called large rock and mineral fragments larger then 2 mm (residue of sieve).

## Sources

- Agroscope: [Bodeneigenschaften](http://www.agroscope.ch). Reckenholz-Tänikon

## Data sources

- FOAG (2008): [Digitale Bodeneignungskarte der Schweiz](http://www.blw.admin.ch/dienstleistungen/00334/00337/index.html?lang=de). Bundesamt für Landwirtschaft

## Data owners

- [Swiss Federal Office for Agriculture (FOAG)](http://www.blw.admin.ch/)
- [agroscope Reckenholz-Tänikon ART (ART)](http://www.agroscope.ch/)

## Authors

- [agroscope Reckenholz-Tänikon ART (ART)](http://www.agroscope.ch/)

## Citation

The terms of use ask to name the Atlas of Switzerland and the data owners, and to keep the source references in exports, screenshots and embeds. Cite the map as:

> Atlas of Switzerland (2019): Mean skeletal fraction of the soil. ETH Zürich. Map data © FOAG, ART. https://atlasderschweiz.ch/en/theme/mean-skeletal-fraction-of-the-soil/

## Links

The map opens at its full extent; a link cannot set the map position.

- Map: https://atlasderschweiz.ch/en/theme/mean-skeletal-fraction-of-the-soil/
- Short link, stays valid when the title changes: https://atlasderschweiz.ch/en/t/251/
- Side by side with another map: https://atlasderschweiz.ch/en/comparison/?lt=251&rt={id of the other map}&ru={u of the other map, or leave out}

Embed in another website (allowed by the terms of use, as long as the source references stay visible):

```html
<iframe src="https://atlasderschweiz.ch/en/embed/?id=251&dm=e&ig=1" style="border:0;width:100%;height:600px;max-width:100%;" loading="lazy" title="Thematic map 'Skeletal fraction' in the Atlas of Switzerland" allowfullscreen sandbox="allow-scripts allow-same-origin allow-popups" allow="geolocation" referrerpolicy="strict-origin-when-cross-origin"></iframe>
```

In the embed URL, `dm` sets what is shown: `e` the map with its title bar (default), `p` also the values of an object clicked on the map, `m` only the map with a button that opens it in the atlas. `ig=1` (default) lets the map react to scrolling and dragging only after a click into it, `ig=0` right away. The size can be changed in `style`.

For the use and citation of maps and data, see the [terms of use](https://atlasderschweiz.ch/en/terms-of-use/).