盐渍土时空变化信息的图谱可视化分析
针对盐渍土动态变化监测中,无法实现变化信息的定位可视化表达问题,该文应用地学信息图谱的分析理念,提出了表达盐渍土类型变化的时空复合单元,探讨了盐渍土时空变化信息的图谱可视化表达方法。以盐渍化比较严重的银川平原为研究区,利用2000、2004和2009年3a的卫星遥感图像,进行了土壤盐渍化遥感制图,在GIS技术支持下,获取了2000-2004年、2004-2009年2个时段的盐渍土时空变化信息图谱,实现了盐渍土时空变化信息的可视化表达。为定位分析盐渍土演化的驱动机制提供了一种新的方法。...
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| Published in | 农业工程学报 Vol. 28; no. 9; pp. 230 - 235 |
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| Main Author | |
| Format | Journal Article |
| Language | Chinese |
| Published |
中国农业大学信息与电气工程学院,北京,100083%西北土地退化与生态恢复国家重点实验室培育基地(宁夏大学),银川,750021
2012
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| Subjects | |
| Online Access | Get full text |
| ISSN | 1002-6819 |
| DOI | 10.3969/j.issn.1002-6819.2012.09.038 |
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| Summary: | 针对盐渍土动态变化监测中,无法实现变化信息的定位可视化表达问题,该文应用地学信息图谱的分析理念,提出了表达盐渍土类型变化的时空复合单元,探讨了盐渍土时空变化信息的图谱可视化表达方法。以盐渍化比较严重的银川平原为研究区,利用2000、2004和2009年3a的卫星遥感图像,进行了土壤盐渍化遥感制图,在GIS技术支持下,获取了2000-2004年、2004-2009年2个时段的盐渍土时空变化信息图谱,实现了盐渍土时空变化信息的可视化表达。为定位分析盐渍土演化的驱动机制提供了一种新的方法。 |
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| Bibliography: | 11-2047/S The visual analysis of saline soil dynamic change information is still not solved. The analysis method of Geo-information TuPu was used for visual analysis of saline soil dynamic change information in the paper. Spatio-temporal composite unit was put forward as the minimum mapping unit to express the dynamic change of saline soil types. The establishing method of Geo-information TuPu of saline soil dynamic change was studied in this paper. Yinchuan Plain was taken as a research area. Three years （2000, 2004 and 2009） satellite remote sensing images were used for soil salinization mapping. The two-period saline soil dynamic change information TuPus were obtained from 2000 to 2004 and from 2004 to 2009 using GIS superposition analysis. Dynamic change pattern were analyzed by Geo-information TuPu of saline soil dynamic change in Yinchuan Plain. The results can provide a new way for position analysis on the drive mechanism of saline soil evolution. remote sensing, monitoring, saline soil, dynamic change, |
| ISSN: | 1002-6819 |
| DOI: | 10.3969/j.issn.1002-6819.2012.09.038 |