Relatives

The distribution area of Oriental persimmon (Diospyros lotus L.)

Object description Download GIS-layers

Authors:

The expert-botanist I.G. Chuhina
The GIS-Expert E.I. Suzanskaja

Date of creation:

22.12.2003

Scale:

1:20,000,000.

Accuracy of map:

Map was created used data from herbarium specimens and maps of scale 1:13,000,000-1:50,000,000.

The projection:

"Alber's Equal Area Conic for Russia", 9, 1001, 7, 100, 0, 44, 68, 0, 0.

Basic contents:

Vector map. Area of species distribution is shown by polygons; actual location occurrence is shown by points.

Accuracy of classifier:

Point data were obtained from published sources and herbarium specimens. Polygons are based on published sources, herbarium samples, and field surveys by the authors.

Method of map production:

Published literature was reviewed, including atlases, monographs and papers. Occurrence data were obtained from herbarium specimens, floras, monographs and papers. The distribution data on the species were taken from the VIR database (N.I. Vavilov Institute, 1992) as well as from Grossgeim (1962) and Svjazevoj (1986). The species has a disjunctive distribution area. The borders of the distribution area in Caucasus were determined using Grossgeim (1967) and herbarium materials from the V.L. Komarov Botanical Institute and the N.I. Vavilov All-Russian Institute of Plant Industry (VIR). The Central Asian part of the distribution area was determined using Svjazevoj (1986). Data were then compiled through scanning and geo-referencing to develop a composite vector map. The biologist, together with the GIS-specialist, drew a new plant distribution area based on compiled data.

Reference citations:

Grossgeim, A.A. 1967. Flora of the Caucasus. Leningrad: Publishing House of the USSR Academy of Sciences. V. 7: map #165.
N.I. Vavilov All-Russian Institute of Plant Industry [WIR], St. Petersburg, Russia.
N.I. Vavilov Institute, Herbarium Department, 1992. Information retrieval system: wild-growing relatives of cultural plants of Russia. STC Informregistr 0229905883, St. Petersburg, Russia.
Svjazevoj O.A. 1986. Areas of distribution of trees and shrubs in the USSR. Leningrad: Nauka. V. 3: map #69b.
V.L. Komarov Botanical Institute [LE], St. Petersburg, Russia.

Right and copyright:

Copyright on this map and its description belongs to its authors;
Copyright on the picture belongs to Rosagropromizdat.