Construction and Application of National Spatial Hydrology Database on A Hydrological Polygons Basis
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Construction and Application of National Spatial Hydrology Database on A Hydrological Polygons Basis
Bulletin of Soiland Water ConservationVol. 22, Issue 3, Pages: 55-59(2003)
作者机构:
中国科学院水利部水土保持研究所西北农林科技大学, 陕西杨凌,712100
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Published:2003
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REN Hongyu, YANG Qinke, HAN Lin, et al. Construction and Application of National Spatial Hydrology Database on A Hydrological Polygons Basis[J]. Bulletin of Soiland Water Conservation, 2003, 22(3): 55-59.
DOI:
REN Hongyu, YANG Qinke, HAN Lin, et al. Construction and Application of National Spatial Hydrology Database on A Hydrological Polygons Basis[J]. Bulletin of Soiland Water Conservation, 2003, 22(3): 55-59.DOI:
Construction and Application of National Spatial Hydrology Database on A Hydrological Polygons Basis
Runoff and sediment data from hydrological stations provide the database for studying regional soil and water loss. Yet up scaling of these point data is needed to represent the regional area. Based on published hydrological data
runoff and sediment were calculated for evaluating units by dividing the study area into hydrological polygons
combining hydrological data with the hydrological polygons map
setting up the accumulative relationship between subcatchments and validating the runoff and sediment data. A national spatial hydrology database is built to assist spatial analysis. A preliminary application of the database is demonstrated by an example using data from 1955.