This data is the restoration of the distribution of the main ancient irrigation canals in the middle and upper reaches of the Heihe River Basin from the Ming Dynasty to the Republic of China. It is based on the re-publication of ganzhenzhi, the revision of new records of Suzhou and Ganzhou Prefecture records, combined with the topographic maps and images of the 1960s.
It is provided in the form of ArcGIS ShapeFile, GCS krasovsky 1940 coordinate system and transverse Mercator projection grid. The data type is linear vector, and its attributes include name, source, length, irrigation area, etc.
|collect time||2013/01/01 - 2013/12/31|
|collect place||Heihe River Basin|
|data size||649.5 kB|
"Re-publication of ganzhen records", "revision of new records of Suzhou" and "Ganzhou Prefecture records" and county records of the Republic of China, topographic maps and remote sensing images of the 1960s
The data quality is good
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