Weeds

Area of distribution and weediness of Chenopodium suecicum J. Murr.

Object description Download GIS-layers

Authors:

Biologist specialist - S.Yu.Larina,
GIS-specialist - I.A.Budrevskaya.

Date of creation:

08.12.2006.

Scale:

1:20 000 000.

Accuracy of the map:

It is created on materials of maps of natural scale 1:17 000 000 - 1:80 000 000.

Projection:

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

Basic content:

Vector map. Area of distribution is shown by polygon (main distribution) and by dots (sporadic distribution). Zone of weediness is shown by polygon.

Accuracy of the classifier:

Within the area of Ch. suecicum, the zones of its weediness are shown, established by criteria of occurence (% of fields where this species is found) and abundance (expressed as projective cover of this species in the field (in % to the field area)) (Tanskii et al., 1998), i.e.; where the occurence of this species exceeded 20% with its abundance (projective cover) more than 15%.

Method of map production:

The areas of distribution and weediness of Ch. suecicum are established according to the analysis of the open published maps and literature. The area of distribution is based on the map from the publication of E.Hulten & M.Fries (1986). Within the European part the northern limit of the area is supported by the data of A.I.Poyarkova (1956) and A.I.Tolmachev (1976), southern limit of the area is established according to P.F.Maevskii (1954). Area of the distribution is extended further to the east according to V.L.Komarov & B.K.Shishkin (1936), the limits of its eastern part are depicted according to I.M.Krasnoborov & L.I.Malyshev (1992). The zones of weediness of Ch. suecicum are established according to V.V.Nikitin (1983), being coordinated with the limits of arable land. The sites of sporadic distribution of Ch. suecicum, which are not included in the main area, have been shown according to E.Hulten & M.Fries (1986), A.I.Tolmachev (1976) and I.M.Krasnoborov & L.I.Malyshev (1992).

Reference citations:

Anonym. 1996-2003. Chenopodium suecicum. Plants For A Future Database: http://www.pfaf.org/database/plants.php?Chenopodium+suecicum
Hulten E. & Fries M. 1986. Atlas of North European Vascular Plants, North of the Tropic of Cancer: Konigstein, V. 1-3: 1172 p.
Komarov V.L. & Shishkin B.K., eds. 1936. Flora of the USSR. V.6. Moscow-Leningrad: AN SSSR. 954 p. (in Russian).
Krasnoborov I.M. & Malyshev L.I., eds. 1992. Flora of Siberia. V.5. Novisibirsk: Nauka. 312 p. (in Russian).
Maevskii P.F. 1954. Flora of middle belt of the European part of the USSR. Moscow-Leningrad: Selkhozgiz. 912 p. (in Russian).
Nikitin V.V. 1983. Weed plants of the USSR flora. Leningrad: Nauka. 454 p. (in Russian).
Poyarkova A.I., ed. 1956. Flora of Murmansk region. V.3. Moscow-Leningrad: AN SSSR. 452 p. (in Russian).
Tanskii V.I., Levitin M.M., Ishkova T.I. & Kondratenko V.I. 1998. Phytosanitary diagnostics in integrated management of cereals. In: Novozhilov K.V., ed. Compendium of methodical recommendations in plant protection. Saint-Petersburg: VIZR. p.5-55. (in Russian).
Tolmachev A.I., ed. 1976. Flora of Northeast of the European part of the USSR. V.2. Leningrad: Nauka. 316 p. (in Russian).

Right and copyright:

All rights reserved. Copyright 2006 © S.Yu. Larina & I.A. Budrevskaya.