Weeds

Area of distribution and weediness of Lepidotheca suaveolens (Pursh) Nutt.

Object description Download GIS-layers

Authors:

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

Date of creation:

20.08.2004.

Scale:

1:20 000 000.

Accuracy of map:

It is created on information taken from the open-published literature and on maps of natural scale 1: 17 000 000 and larger.

Projection:

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

Basic contents:

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

Accuracy of the classifier:

Area of the species is divided into zones of the main distribution, sporadic distribution, and weediness.

Procedure of map drawing:

Area and zones of weediness are outlined on the blank map by results of the analysis of cartographic materials published in the open literature. Maps of L. suaveolens area by Chikov P.S. (1983), Volkov A.N. (1935), Tolmachev A.I. (1976), Kharkevich S.S. (1992) have been used. A map from Chikov P.S. (1983) is used as a basis as Volkov's map made in 1935 has been now considerably extended according to Tolmachev A.I. (1976) and Kharkevich S.S. (1992). In the Far East Chikov's map (1983) is slightly expanded in places, where dots of the species records on Kharkevich's map (1992) are dense, adjoining to border of the area depicted by Chikov P.S. (1983). Places of sporadic distribution are shown according to maps drawn by Chikov P.S. (1983), Volkov A.N. (1935), Kharkevich S.S. (1992), Tolmachev A.I. (1976) and after literature data (Karavaev M.N., 1958; Dorogostaiskaia E.V., 1972; Kozhevnikov J.P., 1978; Khokhryakov A.P., 1978). The zone of weediness is allocated after literature data. Criterion of its allocation is the indication of the weed as frequently meeting in fields of the Non-Chernozem zone (Shlyakova E.V., 1979), dangerous weed of grain crops in Byelorussia (Kozlovskaia N.V. & Simonovich L.G., 1966), dangerous weed on tea plantations in Transcarpathia (Bubryak I.I., 1957), the most widespread weed having occurrence to 70% in Latvia (Rasin.sh A. & Taurinya M., 1972), the weed having 3-4 points of abundance in Murmansk Region (Shlyakova E.V., 1961), malicious in the Novgorod Region with abundance of 3-5 points and occurrence of 75-100% (Ul.yanova T.N. et al., 1992), the weed having 80% of occurrence in Leningrad Region (Luneva N.N. et al., 2004).

Sources of the data:

Bubryak, I.I. 1957. Weed vegetation and fungal diseases on experimental fields of tea in Transcarpathia. Nauchnye zapiski. Uzhgorod: MVO USSR, UGU. V. 23: 101-107 (In Russian)
Chikov, P.S., ed. 1983. Atlas of areas and resources of herbs of the USSR. Moscow: VNIILR, BIN, LGU, TGU. 340 p. (In Russian)
Dorogostaiskaya, E.V. 1972. Weed plants of the Far North of the USSR. Leningrad: Nauka. 172 p. (In Russian)
Karavaev, M.N. 1958. Synopsis of Yakutian flora. Moscow & Leningrad: AN SSSR, 190 p. (In Russian)
Kharkhevich, S.S., ed. 1992. Vascular plants of the Soviet Far East. Saint-Petersburg: Nauka. V.6. 428 p. (In Russian)
Khokhryakov, A.P. 1978. To flora of middle current of Omolok river basin. In: Flora and vegetation of Chukotka. Vladivostok: AN SSSR: 53-75. (In Russian)
Kozhevnikov, Yu.P. 1978. Vegetation and flora of env. Markovo (Anadyr. river basin). In: Flora and vegetation Flora of Chukotka. Vladivostok: AN SSSR: 30-52 (In Russian)
Kozlovskaya, N.V. & Simonovich, L.G. 1966. Features of weed distribution on turfy-podzol soils of Polesye region. In: Yurkevich, I.D., ed. Geobotanical research. Minsk: Nauka i tekhnika: 56-64. (In Russian)
Luneva, N.N., Doronina, A.Yu., Eroshina, YU.V. 2004. Species structure of weed plants on carrot fields of Leningrad Region. Vestnik zashchity rastenii (St.Petersburg-Pushkin) 2: 57-61. (In Russian)
Rasin.sh, A., Taurinya, M. 1972. To knowledge of agrophytocenoses on sod-carbonate loamy soils in Latvian SSR. In: Peletskis, S., ed. Brief reports on questions of plant protection. Kaunas: Raide. Part 3: 17-21. (In Russian)
Shlyakova, E.V. 1961. Distribution of weed plants in fields of Murmansk Region. Botanicheskii zhurnal 46(6): 854-860. (In Russian)
Shlyakova, E.V. 1979. Weed plants of the Nonchernozem zone. Byulleten. VIR 88: 64-69. (In Russian)
Tolmachev, A.I., ed. 1977. Flora of North-East of the European part of the USSR. Leningrad: Nauka. V.4. 312 p. (In Russian)
Ulyanova, T.N., Kondratenko, V.I., Ivanov, I.A., Mal'kova, E.A. 1992. Weed plants of the Novgorod, Vologda and Arkhangelsk Regions. In: Nesterov, YA.S., ed. Bulletin VIR 229: 69-74. (In Russian)
Volkov, A.N., ed. 1935. The regions of the distribution of the main weeds in the USSR. Moscow & Leningrad: Publishing House of Kolkhoz & Sovkhoz Literature. 153 p. (In Russian)

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