干旱区生态环境知识资源中心(Arid): 基于决策树方法的蒙古高原土地覆盖遥感分类--以蒙古国中央省为例

Arid

	基于决策树方法的蒙古高原土地覆盖遥感分类--以蒙古国中央省为例
其他题名	Land Cover Classification in Mongolian Plateau Based on Decision Tree Method: A Case Study in Tov Province, Mongolia
	田静 1; 王卷乐 2; 李一凡 2; 周玉洁 1; 郭海会 1; 祝俊祥 2
来源期刊	地球信息科学学报
ISSN	1560-8999
出版年	2014
卷号	16 期号:3 页码:460-469
中文摘要	蒙古高原包括蒙古全部、俄罗斯南部和中国北部部分地区。蒙古高原的土地利用/覆盖格局与变化,对揭示该区域乃至整个东北亚地区的资源、环境和生态特征,促进该区域可持续发展具有重要的现实和科学意义。本文以在蒙古国中央省及其所含首都乌兰巴托市为研究区,利用空间分辨率为30 m的TM影像,采取QUEST(Quick Unbiased and Efficient Statistical Tree)决策树方法,通过图像目视解译,获取了研究区2010年土地覆盖分类数据。结果显示,草地占据研究区总面积的70.88%,其次是森林占14.83%、裸地占10.73%、农田占2.98%、水体占0.31%、建筑用地占0.27%、湿地占0.02%。通过野外实地采集的139个GPS验证点进行精度评价发现,一级土地覆盖类型的总体精度可达72.66%。针对草地的二级分类的总体精度有较明显下降,其主要是由于中蒙科学家对于草地类型分类体系的差异所造成的典型草地和荒漠草地的混分。
英文摘要	Global and regional land use/cover data processed by remote sensing images is a supportive part for the researches related to environment and so on. Mongolia Plateau includes all of Mongolia, parts of southern Russia and northern China. Study on land use/cover changes in Mongolia Plateau has important practical and scientific significance to discover the resources, environmental and ecological characteristics of this area and even in northeast Asia area, and also it is beneficial to enhance international cooperation in regional resources utilization, ecological and environmental protection and sustainable development. According to the land use/cover mapping requirement in Mongolia Plateau, a land cover classification approach was designed based on QUEST (Quick Unbiased and Efficient Statistical Tree) decision tree method in the representative area of Mongolia Plateau, where includes Tov Province and Ulaanbaatar City in Mongolia. Land cover classification dataset in this area was captured using Landsat TM images, through QUEST automatic classification and visual interpretation. Results show that the total area of steppe occupies 70.88%, followed by forest accounting for 14.83%, barren 10.73%, cropland 2.98%, water 0.31%, built area 0.27%, and wetland 0.02%. 139 GPS verification points for accuracy assessment were collected by fieldwork, which was held in August 2013. Accuracy assessment found that land cover overall accuracy is up to 72.66% in class I, while the overall accuracy in class II is obviously descent, mainly due to the confusion of real steppe and desert steppe. This was caused by the different understanding of these two steppe types between scientists from China and Mongolia. In general, the QUEST decision tree method used in this paper is proved to be feasible for higher accuracy land cover classification mapping in this area.
中文关键词	土地覆盖 ; 遥感 ; 蒙古高原
英文关键词	QUEST land cover remote sensing QUEST Mongolian Plateau
语种	中文
国家	中国
收录类别	CSCD
WOS类目	MULTIDISCIPLINARY SCIENCES
WOS研究方向	Science & Technology - Other Topics
CSCD记录号	CSCD:5131503
来源机构	中国科学院地理科学与资源研究所
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/230968
作者单位	1.中国矿业大学(北京)地球科学与测绘工程学院, 北京 100083, 中国; 2.中国科学院地理科学与资源研究所, 资源与环境信息系统国家重点实验室, 北京 100101, 中国
推荐引用方式 GB/T 7714	田静,王卷乐,李一凡,等. 基于决策树方法的蒙古高原土地覆盖遥感分类--以蒙古国中央省为例[J]. 中国科学院地理科学与资源研究所,2014,16(3):460-469.
APA	田静,王卷乐,李一凡,周玉洁,郭海会,&祝俊祥.(2014).基于决策树方法的蒙古高原土地覆盖遥感分类--以蒙古国中央省为例.地球信息科学学报,16(3),460-469.
MLA	田静,et al."基于决策树方法的蒙古高原土地覆盖遥感分类--以蒙古国中央省为例".地球信息科学学报 16.3(2014):460-469.