Crops

The area of Sudan grass (Sorghum sudanense (Piper.) Stapf)

Object description Download GIS-layers

Autor:

The expert and GIS-expert: N.V. Terekhina

Date of creation:

27.01.2005

Scale:

1:20.000.000

Accuracy of map:

Map was created using a map of the gardens of the former USSR with the scale of 1: 20 000 000.

The projection:

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

Basic contents:

Map is a vector file consisting of polygons and points. Points represent recorded locations of the species; polygons represent area of possible distribution of the species.

Accuracy of classifier:

Polygons are based on literature sources, political boundaries and ecological descriptions. Point data were obtained from literature sources and herbarium specimens. Polygons are based on literature sources, herbarium samples, and field surveys by the authors.

Method of map productioon:

GIS specialists at the Moscow Soil Institute carried out the mapping. Working with agronomists, historical agricultural statistics were reviewed at the district (rajon) level to determine whether or not the crop was cultivated. Crop distribution was based on crop production at the rajon-level and was further refined using the boundaries of the 1:4000000 map of arable lands.
The area map was created using Solovijov (1960), State list (1994, 2004), and Koroljeva et al. (2003). In the former USSR, the main regions of cultivation include the Northern Caucasus, Transcaucasia, Middle Asia, Ukraine (steppe and forest-steppe), Moldova, Middle and Lower Volga, and the Central-Chernozem regions according to Plant (1933), Shatilov (1981), and Davletshin (1999). Species is cultivated for seeds until the line created by connecting the following locations: Lvov-Zhitomir-Kiev-Sumy-Kursk-Uljanovsk-Orenburg-Kustanaj-Slavgorod-Far East (Elsukov, 1954). Species is cultivated for green mass until the line created by connecting the following locations: Polotsk-Moscow-Vladimir-Nizhnij Novgorod-Kazan'-Cjeliabinsk-Kurgan-Omsk-Novosibirsk-Kemerovo-Abakan-Kizil (Medvedev, 1970). B.F. Soloviev (1955) provides a map of Sudan grass distribution in the USSR, which were used as the basis of the polygon area. Points were identified using Elsukov (1954), Soloviev (1955), Sudan (1981), and Sudan (1986). A consultation with the General Specialist of the Grain Cultures Department of VIR, B.N. Malinovskij, PhD was also instrumental in creating the map.

Reference citations:

Author. 1933. Plant growing of the USSR. Leningrad-Moscow: Sel'khozgiz. V. 1, Part 2. 536-540 p.
Author. 1965. Catalogue of zoning grades of agriculture species (without potato, vegetables and melon cultures). Moscow: Kolos. 288 p.
Elsukov M.P., ed. 1967. Annual forage crops. Moscow: Kolos. 351 p.
Author. 1986. Sudan grass is a valuable fodder culture. Novosibirsk: Book publisher. 56 p.
Davletshin T.Z. 1999. Culture sorghum in Tatarstan. Kazan: r.p. Alekseevskoe. 193 p.
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.].
Medvedev P.F. 1970. Semi-widespread fodder cultures. Leningrad: Kolos. 60 p.
Nikljaev V.S., ed. 1990. Bases of agriculture and plant growing. Moscow: Agropromizdat. 478 p.
Shatilov I.S., ed. 1981. Sudan grass. Moscow: Kolos. 205 p.
Solovijov B.F. 1960. Sudan grass. Moscow: Sel'khozgiz. 63 p.
State List of Selection Achievements, Admitted to Use. Moscow, 1994.
State List of Selection Achievements, Admitted to Use. Moscow, 2004.

Right and copyright:

Copyright on the map and its description belongs to the author.
© Terekhina N.V.
Photo copyright Terekhina N.V.