Abstract
China still use sketch maps as control devices that guarantees consistency and accuracy of population counting in previous census. Although the rapid advancement of geospatial technologies provides many possible solutions of digital census mapping, existing researches do not answer which solution is suitable to China. Subject to many constraints originated from characteristics of China, a practical solution of census mapping based on remote sensing imagery and auxiliary geographic information was proposed and proved to be feasible through evaluation analysis and a three-stage pilot study. Imagery with 2.5 meters and higher resolution, innovative workflow of census areas delineation, easy-to-use census mapping software packages and training organization all together provide the all-around supports for the 2010 rounded census (the 6th census) mapping activities. A digital census geographic framework detailed at the level of enumeration area was established in the 2010 rounded census which fills in the gaps in the field of modern geospatial census in China. The spatially referenced digital census database, especially the detailed census units, is of great value in successive census, sampling survey and many other census-related fields. Future work including quality evaluation of census areas, census mapping solution in the Tibet Autonomous Region are also discussed.
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Foundation item: Under the auspices of National High Technology Research and Development Program of China (No. 2006AA120105), National Natural Science Foundation of China (No. 41001314), Youth Science Funds of State Key Laboratory of Resources and Environmental Information System (No. KA11040101), Chinese Academy of Sciences and National Science & Technology Pillar Program (No. 2012BAI32B07)
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Wang, Y., Li, H., Yu, Z. et al. Approaches to census mapping: Chinese solution in 2010 rounded census. Chin. Geogr. Sci. 22, 356–366 (2012). https://doi.org/10.1007/s11769-012-0540-2
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DOI: https://doi.org/10.1007/s11769-012-0540-2