Weeds
Area of distribution and weediness of Stachys annua L.
Object description Download GIS-layers
Authors:
Object specialist T.D. Sokolova,GIS-specialist I.A. Budrevskaya.
Date of creation:
23.08.2004Scale:
1:20 000 000.Accuracy of map:
Map was created based on materials of maps of natural scale 1:5 000 000 - 1:100 000 000 and on literature data.Projection:
"Alber's Equal Area Conic" USSR, 9, 1001, 7, 100, 0, 44, 68, 0, 0.Basic contents:
Vector map. Area of species distribution is shown by polygons, and sporadic distribution by points. Zones of weediness are shown by polygons.Accuracy of classifier:
The weed area is subdivided into two zones, one representing species distribution, and the second where weed is considered a serious pest. Points represent locations where sporadic occurrence has been reported.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 area of S. annua was determined based on the map of Volkov (1935). Limits of the zone of weediness were established according to Nikitin (1983), and were adjusted according to the data on abundance and frequency of the species occurrence which was taken from below-mentioned references, and adjusted according to the limits of arable lands (Koroljeva et al., 2003). According to Nikitin (1983), S. annua prevails in the forest-steppe and steppe zones of the European part of the former USSR and in Crimea, where it quite often heavily infests spring grain crops. According to the data of Volkov (1935) S. annua is especially widespread throughout Byelorussia, Ukraine and Central Chernozem Area. Data were then compiled through scanning and geo-referencing to develop a composite vector map. The biologist, together with the GIS specialist, drew a composite weed distribution area based on compiled data.Reference citations:
Aleksandrova K.I., Barabash G.I., Kamaeva G.M., Kamyshev N.S. 1975. Keys to weeds of Central Chernozem Area. Voronezh: Voronezh University. 276 p. (In Russian)Grossgeim, A.A. 1967. Flora of the Caucasus. V. 7. Leningrad: Nauka. 896 p. (In Russian)
Koroljeva IE, Vilchevskaya EV, Ruhovich DI. 2003. Digital Arable Land Map. Laboratory of Soil Information of the Dokuchaev Soil Institute, Moscow, Russia [Based on: Yanvareva LF. (ed.), Martynjuk KN., Kisileva NM. 1989. Map of Land Use, Faculty of Geography, Moscow State University, Moscow, Russia.].
Nikitin V.V. 1983. Weed plants in the flora of the USSR. Leningrad: Nauka. 454 p. (In Russian)
Nikonov A.A., ed. 1975. Weed plants of the Stavropol Territory. Proceedings of Stavropol research institute of agriculture. V. 32. Stavropol: Stavropol research institute of agriculture. 292 p. (In Russian)
Rubtsov N.I., ed. 1972. Keys to higher plants of the Crimea. Leningrad: Nauka. 552 p. (In Russian)
Shlyakova E.V. 1982. Field-weed plants of the Non-Chernozem zone of RSFSR. In: Korovina O.N., ed. Catalogue of VIR world collection. Issue 338. Leningrad: VIR. 117 p. (In Russian)
Tolmachev, A.I., ed. 1977. Flora of North-East of the European part of the USSR. V. 4. Leningrad: Nauka. 312 p. (In Russian)
Visyulina O.D., ed. 1970. Weeds of the Ukraine. Kyiv: Naukova dumka. 508 p. (In Ukrainian)
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)
Vvedenskii, A.I., ed. 1961. Flora of Uzbekistan. V. 5. Tashkent: AN Uz. SSR. 668 p. (In Russian)