ZHANG Xiao-nan,SONG Hong-li.Analysis of Consistency between Globcover and Modis Collection5 Based on LCCS[J].Research of Soil and Water Conservation,2014,21(05):306-310,315.
基于LCCS的大尺度土地覆被遥感产品类别相对一致性研究
- Title:
- Analysis of Consistency between Globcover and Modis Collection5 Based on LCCS
- Keywords:
- land cover; relative uniformity; affinity value; LCCS
- 分类号:
- S127;TP79
- 摘要:
- 该文提出了一种基于LCCS分类体系的大尺度土地覆被遥感产品间类别一致性的定量计算方法，并以GLOBCOVER和MODIS COLLECTION5两种大尺度土地覆被遥感产品为数据源对该方法进行了验证。结果表明：GLOBCOVER和MODIS COLLECTION5两者间的类别一致性区域较小，且集中分布于中国的华北、四川盆地、台湾省、西北沙漠地区和喜马拉雅山东麓。类别一致性值分区统计表明，两种土地覆被遥感产品的类别一致性面积百分比存在显著的区域差异，在东北区域，高值区和低值区总面积相近，该区域一致性值以0.5～0.7为主，约占该区域总面积的35%；在西北区域，一致性值以0.7～0.9为主；在华北区域，一致性值表现出明显的高值优势，一致性值大于0.9的区域约占区域总面积的63%；在东南区域，类别一致性值表现出高值面积百分比大于低值面积百分比的特征；青藏高寒区的类别一致性值则与东南区域相反；四川盆地的陆表土地覆被类别以耕地为主，因此表现出与华北区域类似的分布特征；西南区域各个区间的类别一致性值百分比表现出较为均匀的分布特征，并无明显优势级别。
- Abstract:
- Based on the LCCS, this article proposed a method for assessing the relative consistency of large scale land cover products, hereafter GLOBCOVER and MODIS COLLECTION5 were used as validate data to prove the method. The results show that the percentage of higher affinity value is lower because of the difference of category threshold, and concentrated in northern China, Sichuan basin, Taiwan Province, northwest desert and eastern Himalayas. The zonal statistics demonstrated the significant differences, for example, in Northeast, the percentage of high value and low value is almost identical, the value was between 0.5～0.7, occupying the 35%; in northern China, the high value showed an apparent advantage, there was about 63% of area great than 0.9; in southeast region, the region of high value is more than low value, but in Tibet alpine, the tend is adverse compared with southeast region; Sichuan basin has the similar vegetation composition, so the affinity value distribution is analogous with northern China; the affinity value percentage showed a uniform distribution, there was no predominant value interval.
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相似文献/References:
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备注/Memo
收稿日期:2013-11-14;改回日期:2014-01-02。
基金项目:河北省自然科学基金“大尺度多源遥感信息融合土地覆被制图研究”（D2013402014）；矿山空间信息技术国家测绘地理信息局重点实验室基金“大尺度多源土地覆被遥感产品融合研究”；邯郸市科学技术研究与发展计划项目（1321103076-4）
作者简介:张晓楠(1981-),女,河北深州人,讲师,主要研究方向为国土资源遥感。E-mail:360217051@qq.com
通讯作者:宋宏利(1980-),男,河北抚宁人,博士,主要研究方向为大尺度土地覆被遥感信息挖掘。E-mail:songholi2003@163.com