Relatives

Range of distribution of Lavrenko.s Wheatgrass (Agropyron lavrenkoanum) .

Object description Download GIS-layers

Author:

The expert-botanist and the GIS expert - L.L.Malyshev.

Date of creation:

25.06.07

Scale:

1:20 000 000.

Accuracy of the map:

The map is based on data of 1:12 000 000-1:40 000 000 scale maps.

Projection:

"Albers Equal-Area Conic Projection for USSR", 9, 1001, 7, 100, 0, 44, 68, 0, 0

Basic contents:

The map is a vector file consisting of 1 basic and 3 subject layers. The species range is represented by polygons and dots.

Accuracy of the qualifier:

The dots represent information on the species localities according to herbarium materials of LE (1) and published sources (2), the polygons - generalized information on the species distribution.

Method of the map contruction:

The map of the species range is based on coordinates according to herbarium materials and the database included in the Information Retrieval System "Crop Wild Relatives in Russia" (STC Informregistr 0229905883, 1999), and on published maps (Shelyag-Sosonko, 1977). Two areas can be distinguished within the species range: sandy massifs and seaside sands at the lower Dnieper River, and sandy steppes, river terraces and sands in the basins of the Don and the Seversky Donets. Probably it is not a subspecies, but an edaphic ecotype of Agropyron pectinatum.

References:

Shelyag-Sosonko YuR., ed. Grasses of Ukraine. 1977. Kiev: Naukova Dumka. 518 p. (In Russian).

Rights and copyrights:

The copyrights of the map and descriptions are held by their author.