干旱区生态环境知识资源中心(Arid): 鄂托克旗风蚀荒漠化景观格局动态变化研究

Arid

	鄂托克旗风蚀荒漠化景观格局动态变化研究
其他题名	Dynamic Change of Aeolian Desertification Landscape Pattern in Otog Banner, Inner Mongolia
	朱丽 1; 李金霞 1; 秦富仓 2; 姚云峰 2
ISSN	1000-694X
出版年	2009
卷号	29 期号:6 页码:1063-1068
中文摘要	利用鄂托克旗2000年和2005年TM遥感影像,对荒漠化土地进行判读,结合实地调查,并根据中国"三北"地区荒漠化区域分类与发展趋势综合研究野外地质调查内容-技术要求,确定土地荒漠化景观类型和荒漠化程度,将研究区风蚀荒漠化分为轻度沙化、中度沙化、重度风蚀和严重风蚀4个类型.应用Arcview3.3对两期TM影像进行人机交互判读,得到研究区两个时期的风蚀荒漠化景观类型数据并统计,分析研究区风蚀荒漠化景观格局的动态变化.结果表明,未荒漠化土地主要集中在研究区的北部,严重风蚀主要集中在研究区的南部,由北向南,风蚀程度逐渐加重.研究区风蚀荒漠化主要以轻度沙化和中度沙化为主,占研究区风蚀面积的70%以上,破碎度有所增大.风蚀荒漠化面积虽有减小,但风蚀呈加剧趋势.盐渍化土地已转化为风蚀荒漠化景观,而风蚀荒漠化景观可以向其他各景观转化.在适当条件下,轻度沙化土地与未荒漠化土地容易相互转化.中度沙化土地和重度风蚀土地容易转变为其他景观.
英文摘要	The TM remote sensing images of Otog Banner in 2000 and 2005 were interpreted to abstract the desertification lands. The results combined with the field survey were used to determine the types and degrees of desertification lands according to the requirements of content-technology in the desertification regionalization of China "three-north" regions. The aeolian lands in study region can be classified as four types: slight desertification, moderate desertification, severe desertification, and very severe desertification. The statistical data on landscape patterns of the study region in two periods were obtained through human-computer interaction interpretation with Arcview3.3 software. Then the dynamic changes of aeolian landscape patterns were analyzed. The results showed that not desertification lands mainly distributed in the north and very severe desertification lands in the south of Otog Banner, with the wind erosion degree increasing from north to south. The area of desertification lands in the study region had decreased, but the wind erosion degree of land increased, and the desertification area of both slight desertification and moderate desertification occupied more than 70% of the erosion area. The former salinized lands had been transformed into aeolian desertification lands. Generally, under proper conditions transformation usually occurred between the slight desertification and non desertification lands, and the middle and the severe types are inclined to the other landscapees.
中文关键词	风蚀荒漠化 ; 景观格局 ; 鄂托克旗 ; 动态
英文关键词	blow desertification landscape pattern dynamic change Etuoke county
语种	中文
国家	中国
收录类别	CSCD
WOS类目	ENVIRONMENTAL SCIENCES
WOS研究方向	Environmental Sciences & Ecology
CSCD记录号	CSCD:3785860
来源机构	内蒙古农业大学
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/224589
作者单位	1.包头师范学院,资源与环境学院, 包头, 内蒙古 014030, 中国; 2.内蒙古农业大学,生态环境学院, 呼和浩特, 内蒙古 010019, 中国
推荐引用方式 GB/T 7714	朱丽,李金霞,秦富仓,等. 鄂托克旗风蚀荒漠化景观格局动态变化研究[J]. 内蒙古农业大学,2009,29(6):1063-1068.
APA	朱丽,李金霞,秦富仓,&姚云峰.(2009).鄂托克旗风蚀荒漠化景观格局动态变化研究.,29(6),1063-1068.
MLA	朱丽,et al."鄂托克旗风蚀荒漠化景观格局动态变化研究".29.6(2009):1063-1068.