Area of distribution and weediness of Carduus acanthoides L.

Object description Download GIS-layers


Object specialist - I.N.Nadtochii,
GIS-specialist - I.A.Budrevskaya.

Date of creation:



1:20 000 000.

Accuracy of the map:

It is created on materials of maps of natural scale 1: 80 000 000 - 1: 5 000 000 and on literature data.


"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:

The weed area is divided into zones of main distribution, sporadic distribution and weediness. The zones of its weediness are shown, established by criteria of occurrence (% 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 occurrence of this species exceeded 50% with its abundance (projective cover) more than 15%.

Method of map production:

The areas of distribution and weediness are established according to the analysis of the open published maps and literature. A map compiled by Hulten E. & Fries M. (1986) is taken as a prototype. The area is expanded in the Caucasus eastward after the map by Volkov A.N. (1935), which is supported by data of Grossgeim A.A. (1949). Sporadic distribution is given after Hulten E. & Fries M. (1986), Volkov A.N. (1935), Shabalina I.A. (1975), Tolmachev A.I. (1966), Rodionova A.E. (2001), Shishkin B.K. (1965), Kharkevich S.S. (1992). The zone of weediness is allocated after the literature data with use of map of arable lands. Criterion of its allocation is the indication of the weed in the literature as being the main weed species in southern forest-steppe (to line Bakhta - Zinov.evsk - Poltava - Kharkiv - Ostrogozhsk - Borisoglebsk - Balashov - Atkarsk - Petrovsk) (Keller B.A., 1934), having abundance 4 points in winter wheat in the Ryazan Region (Spiridonov Yu.Ya. & Polyanskii S.Ya., 2004), the main weed in wheat in the Caucasus (Korovina O.N., 1981).

Reference citations:

Bobrov, E.G. & Cherepanov, S.K., eds. 1963. Flora of the USSR. V. 28. Leningrad - Moscow: AN SSSR. 656 p. (in Russian).
Grossgeim, A.A. 1949. Keys to plants of the Caucasus. Moscow: Sovetskaya nauka, 747 p. (in Russian).
Hulten, E. & Fries, M. 1986. Atlas of North European Vascular Plants, North of the Tropic of Cancer: Konigstein. V. 1-3. 1172 p.
Keller, B.A., ed. 1934. Weed plants of the USSR. V. 1. Leningrad: AN SSSR. 324 p. (in Russian).
Kharkevich, S.S., ed. 1992. Vascular plants of the Soviet Far East. Saint-Petersburg: Nauka. V. 6. 428 p. (in Russian).
Korovina, O.N., ed. 1981. Weed plants of wheat sowings in the USSR. Catalogue of VIR world collection. N 320. Leningrad: VIR, 68 p. (in Russian).
Rodionova, A.E. 2001. Segetal plants of Upper Volga Basin Region. St. Petersburg: VIZR. 99p. (in Russian).
Shabalina, I.A. 1975., ed. Keys to plants of Kirov Region. Part 2. Kirov: KGPI. 304 p. (in Russian).
Shishkin, B.K., ed. 1965. Flora of the Leningrad Region. V. 4. Leningrad: LGU. 356 p. (in Russian).
Spiridonov, Yu.Ya., Polyanskii, S.Ya., eds. 2004. Zonal Ryazan.: RASKHN, VNIIF, RNIPTI APK, 150 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. St. Petersburg: VIZR, p. 5-55. (in Russian).
Tolmachev, A.I., ed. 1966. Keys to plants of Primorskii Territory and Amur Region. Moscow & Leningrad: Nauka, 492 p. (in Russian).
Vasilchenko, I.T. & Pidotti, O.A. 1975. Keys to weed plants of areas of irrigated agriculture. Leningrad: Kolos. 375 p. (in Russian).
Volkov, A.N., ed. 1935. Areas of distribution of the major weed plants in the USSR. Moscow & Leningrad: State Publishing House of Kolkhoz and Sovkhoz Literature, 152 p. (in Russian).

Right and copyright:

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