| 盐渍土时空变化信息的图谱可视化分析 |
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| 引用本文： | 张荣群,宋乃平,王秀妮,蔡思敏.盐渍土时空变化信息的图谱可视化分析[J].农业工程学报,2012,28(9):230-235. |
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| 作者姓名： | 张荣群 宋乃平 王秀妮 蔡思敏 |
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| 作者单位： | 1. 中国农业大学信息与电气工程学院,北京,100083
2. 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 |
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| 基金项目： | 国家自然科学基金项目（批准号：40871103）和国家重点基础研究发展计划项目课题（课题编号：2012CB723206） |
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| 摘 要： | 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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| 关 键 词： | 遥感 监测 盐渍土 动态变化 地学信息图谱 可视化 |
| 收稿时间： | 2011/9/25 0:00:00 |
| 修稿时间： | 4/6/2012 12:00:00 AM |
Visual analysis of saline soil spatio-temporal variation using Geo-information TuPu |
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| Zhang Rongqun,Song Naiping,Wang Xiuni and Cai Simin.Visual analysis of saline soil spatio-temporal variation using Geo-information TuPu[J].Transactions of the Chinese Society of Agricultural Engineering,2012,28(9):230-235. |
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| Authors: | Zhang Rongqun Song Naiping Wang Xiuni and Cai Simin |
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| Institution: | 1 (1. College of Information and Electrical Engineering, China Agricultural University, Beijing 100083, China; 2. Key Laboratary Breeding Base of Land Degradation and Ecological Restoration of Northwest China, Ningxia University,Yinchuan,750021, China) |
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| Abstract: | 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. |
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| Keywords: | remote sensing monitoring saline soil dynamic change Geo-information TuPu visual analysis |
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