干旱区生态环境知识资源中心(Arid): 基于北京1号小卫星的全国沙漠与沙漠化土地监测研究

Arid

	基于北京1号小卫星的全国沙漠与沙漠化土地监测研究
其他题名	Study on M onitoring of Desert and Sandy Desertification Land in China Using Images of Beijing-1 Small Satellite
	汪爱华 1; 李丽 1; 迟耀斌 1; 王智勇 2; 周会珍 1
来源期刊	地理科学
ISSN	1000-0690
出版年	2010
卷号	30 期号:3 页码:409-414
中文摘要	利用2006和2007年北京1号小卫星多光谱数据,对中国四大沙地和八大沙漠地区沙漠和沙漠化土地分布状况及其动态变化进行研究。结果表明: 2007年研究区内沙漠和沙漠化土地总面积为69. 18*104km~2,占研究区总面积的25. 03%,其中重度区面积占14. 88%,中度区占5. 10%,轻度区占5. 05%。2006~2007年研究区内共有440块图斑发生变化,总变化面积为876. 41 km~2,沙漠化土地增加面积47. 57 km~2,减少面积为373. 39 km~2。沙漠化土地类型间的转换面积为455. 45 km~2,主要以轻度和中度沙漠化土地之间相互转化最为明显。
英文摘要	Beijing-1 multispectraldata, with advantages of short revisitperiod and the large area collection capability of 32m resolution, 600 km width imaging swath and more than 4 000 km stripe, is a new prior source of remote sensing data inmonitoring desert and sandy desertification land. This paper introduced the workflow and the key technologies to monitor the desert and sandy desertification land more rapidly and frequently in whole country based on Beijing-1multispectraldata.Two periods of Beijing-1 near-anniversary images in 2006 and 2007 were used to analyse the distribution and change of desertand sandy desertification land. The study area includes Hulunbuir Sandy Land, Horqin Sandy Land, Otindag Sandy Land, MuUs Sandy Land, Hoboq Deser,t Tengger Deser,t Badain Jaran Deser,t Ulan Buh Deser,t Qaidam Deser,t Kumtag Deser,t Gurbantunggut Deser,t Taklimakan Desert and so on. The result showed that the total area of the desert and sandy desertification land added up to691 752km2in 2007, accounting for25. 03% of the whole region. The proportion of severe, medium and slight landwas respectively 14. 88%, 5. 10% and 5. 05%. Theymainly distributed in Xinjiang Uighur Autonomous R egion and Inner M ongo lia Autonomous Region, whose area accounted for 61. 16% and 27. 84% of the total area of the desert and sandy desertification land respectively. Therewere 22 counties orbannerswhere the area of the desertand sandy desertification landwas over50% of its total region area. Moreover, therewere 33 counties orbannerswhere the area of the severe land had exceeded 10% of its total region area.There were 440 patches changed from 2006 to 2007, which added up to 876. 41 km2, mainly in the edge of desertor sandy land. The area of the desert and sandy desertification land to the non-sandy land was 373. 39 km~2, of which mostly being converted into farmland, vegetation region, waterbody, construction land and so on. Contrariwise, the area changed from non-sandy to the sandy landwas 47. 57 km~2, mainly from farmland or vegetation region to the slight land. So t325. 82 km2ofdesertand sandy desertification land decreased from 2006 to 2007. In addition, the transformation area among the three level landswas455. 45 km~2, of which the transformation between medium and slight landwas obvious.
中文关键词	沙漠和沙漠化土地 ; 遥感 ; 北京一号
英文关键词	desert and sandy desertification remote sensing Beijing-1 small satellite
语种	中文
国家	中国
收录类别	CSCD
WOS类目	AGRICULTURE MULTIDISCIPLINARY
WOS研究方向	Agriculture
CSCD记录号	CSCD:3895581
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/224784
作者单位	1.北京宇视蓝图信息技术有限公司, 北京 100096, 中国; 2.二十一世纪空间技术应用股份有限公司, 北京 100096, 中国
推荐引用方式 GB/T 7714	汪爱华,李丽,迟耀斌,等. 基于北京1号小卫星的全国沙漠与沙漠化土地监测研究[J],2010,30(3):409-414.
APA	汪爱华,李丽,迟耀斌,王智勇,&周会珍.(2010).基于北京1号小卫星的全国沙漠与沙漠化土地监测研究.地理科学,30(3),409-414.
MLA	汪爱华,et al."基于北京1号小卫星的全国沙漠与沙漠化土地监测研究".地理科学 30.3(2010):409-414.