Weeds
Area of distribution and weediness of Clover Creepers (Trifolium repens L.).
Object description Download GIS-layers
Authors:
Object specialist A.Yu. Doronina,GIS-specialist I.A. Budrevskaya.
Date of creation:
20.05.2005.Scale:
1:20 000 000.Accuracy of map:
It is created on materials of maps of natural scale 1:15 000 000-1:100 000 000 and on information taken from the open-published literature.Projection:
"Alber's Equal Area Conic for the USSR", 9, 1001, 7, 100, 0, 44, 68, 0, 0Basic contents:
Vector map. Area of distribution is shown by polygons (main distribution) and by dots (sporadic distribution). Zone of weediness is shown by polygons.Accuracy of the classifier:
Within the weed area the zones of weediness are shown according to occurrence and abundance (Tanskii et al., 1998) - occurrence of Trifolium repens exceeds 20% with its abundance 2-3 numbers.Procedure of map drawing:
The map is made by results of the analysis of the open-published cartographical materials and literature. The map of E. Hulten & M. Fries (1986), has been taken as a prototype, being supplemented by maps of distribution from A.A. Grossgeim (1952), A.I. Tolmachev (1976), L.I. Malyshev & G.A. Peshkova (1979), S.S. Kharkevich (1989). The northern, southern, western and eastern boundaries of area are outlined according with E. Hulten & M. Fries (1986) and amplificated according to A.A. Grossgeim (1952) (southern boundary), A.I. Tolmachev (northern boundary), L.I. Malyshev & G.A. Peshkova (1979) (northern and suothern boundaries), S.S. Kharkevich (1989) (eastern and northern boundaries). The sporadic distribution is given according with E. Hulten & M. Fries (1986), A.A. Grossgeim (1952), A.I. Tolmachev (1976), L.I. Malyshev & G.A. Peshkova (1979), S.S. Kharkevich (1989). The zone of weediness is determined after V.V. Nikitin (1983), T.N. Ul.yanova (1981; 1993; 1998), I.T. Vasil.chenko & O.A. Pidotti (1975) and specified according to data on abundance, frequency of occurrence or weediness of the weed, taken from the below-mentioned references (except "Manuals" and "Floras").Sources of the data:
Grossgeim A.A. 1952. Flora of the Caucasus. V. 5. Moscow, Leningrad: AN SSSR. 400 p. (in Russian).Hulten, E., Fries, M. 1986. Atlas of North European vascular plants, North of the Tropic of cancer: In 3 v. Konigstein. 1172 p. (in English).
Kharkevich, S.S., ed. 1989. Vascular plants of the Soviet Far East. Saint-Petersburg: Nauka. V. 4. 320 p. (in Russian).
Malyshev, L.I. & Peshkova, G.A., eds. 1979. Flora of the Central Siberia. Novosibirsk: Nauka. V. 2. P. 541-1048. (in Russian).
Nikitin, V.V. 1983. Weed plants of the USSR flora. Leningrad: Nauka. 454 p. (in Russian).
Shishkin, B.K.., ed. 1945. Flora of the USSR. V. 11. Moscow; Leningrad: AN SSSR. 432 p. (in Russian).
Tanskii, V.I. et al. 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. 1976. Flora of Northeast of the European part of the USSR. V. 2. Leningrad: Nauka. 250 p. (in Russian).
Ul.yanova, T.N. 1981. Weed plants in wheat of the USSR. In: Catalog of VIR world collection, Issue 320. Leningrad: VIR. 19 p. (in Russian).
Ul.yanova, T.N. 1993. Useful weed plants in flora of the USSR. In: Catalogue of world collection of VIR. Issue 643. Saint-Petersburg: VIR. 160 p. (in Russian).
Ul.yanova, T.N. 1998. Weed plants in flora of Russia and other FSU countries. Saint-Petersburg: VIR. 233 p. (in Russian).
Vasil.chenko, I.T. & Pidotti, O.A. 1975. Keys to weed plants of areas of irrigated agriculture. Leningrad: Kolos. 375 p. (in Russian).