Weeds
Area of distribution and weediness of Orobanche ramosa L.
Object description Download GIS-layers
Authors:
Object specialist - N.N.Luneva,GIS-specialist - I.A.Budrevskaya.
Date of creation:
6.12.2007.Scale:
1:20 000 000.Accuracy of the map:
It is created on materials of map of natural scale 1: 10 000 000 and on literature data.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 polygons (main distribution) and by dots (sporadic distribution).Accuracy of the classifier:
Area is subdivided into zones of main and sporadic distribution.Method of map production:
The map is made according to the analysis of the open published maps and literature. A map compiled by the authors is taken as a prototype; it is based on literature data (Nikitin, 1983) on growth of this weed in various floristic regions, being superimposed with maps of floristic regions (Komarov, 1934; Fedorov, 1981). The Branched Broomrape distribution in the former USSR is supported by the literature data (Geideman, 1954; Zernov, 2002;Grossgeim, 1949; Rubtsov, 1972). The Branched Broomrape litters cultural crops with abundance 2 points and lower; therefore, a zone of its weediness is inexpediently to allocate.Reference citations:
Anonym. 2001-2007. Branched Broomrape - Orobanche ramosa L. (in Russian). http://www.agroru.com .Anonym. 2002-2006. Branched Broomrape - Orobanche ramosa L. (in Ukrainian). http://www.agroua.net .
Fedorov A.A., ed. 1981. Flora of the European part of the USSR. V. 5. Leningrad: Nauka, 379 p. (in Russian).
Geideman T.S. 1954. Keys to plants of Moldavian SSR. Moscow & Leningrad: Nauka, 466 p. (in Russian).
Grossgeim A.A. 1949. Keys to plants of the Caucasus. Moscow: Sovetskaya nauka, 748 p. (in Russian).
Komarov V.L., ed. 1934. Flora of the USSR, v. 2. Leningrad: AN SSSR. 778 p. (in Russian).
Nikitin V.V. 1983. Weeds in the flora of the USSR. Leningrad: Nauka. 454 p. (in Russian).
Rubtsov N.I., ed. 1972. Keys to higher plants of the Crimea. Leningrad: Nauka, 552 p. (in Russian).
Zernov A.S. 2002. Keys to vascular plants of the north of Russian Black Sea coast. Moscow: KMK, 284 p. (in Russian).