Crop Monitoring for Selenge Basin using RS and GIS

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Crop Monitoring for Selenge Basin using RS and GIS

Sh. Munkhtuya¹, B. Oyuntulkhuur²
¹GIS Specialist, Information and Computer Center
²GIS Specialist, Land Management Agency
Ministry for Nature and Environment of Mongolia
Khudaldaany Str – 5, Ulaanbaatar 11, Mongolia
mtuya@yahoo.com

Mongolia has very extreme continental and dry windy climate and it locates in high altitude, specially the area 80 percents of the country locates in altitude more than 1000 m above sea level. Mongolian economy and agricultural activities are highly dependent from climate and its change. Approximately 800 thousand hectares of the territory is crop land.

In the past, mapping of agricultural land has limited the applications of aerial photographs and field study. The existing agricultural maps made in 1980’s. As an old aerial photographs and maps are unsuitable for updating or preparing new detailed land use maps and they do not satisfy farmers and government requests any more. Mongolian farmers need currents status of crop parcel map and by these reason we try to demonstrate possibility of crop parcel mapping using RS and GIS to decision makers.

Many studies have shown that satellite remote sensing technique is a powerful tool for agriculture monitoring.

Data Used
For crop monitoring used high resolution satellite data of main agricultural region Orkhon-Selenge Basin of Mongolia:

2 scenes of Landsat ETM from 21- Aug- 1989 covered the whole area of test site (Path:132, Row:25, 26)
2 scenes of Landsat ETM from 20- Sep – 2000 covered the whole area of test site (Path:132, Row:25, 26)

GIS Data

Main geographic features like administrative boundaries, lakes, roads, rivers, and relief (scale 1:500,000)
Land use map of Selenge aimag (scale 1:500,000)
Ecosystem map of Selenge region (scale 1:500,000)
Fire map, which produced from NOAA AVHRR data of 2000

Statistical Data

Local agronomist data
Parcel data from LMA, MAF and National Census

There are 7 soums selected for crop monitoring study (three from Selenge: Eroo, Orkhon and Tsagaannuur; three from Tuv: Jargalant, Tseel and Ugtaaltsaidam; one from Darkhan: Khongor).

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