干旱区生态环境知识资源中心(Arid): 鄂尔多斯特有种四合木分布区景观格局时空变化

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	鄂尔多斯特有种四合木分布区景观格局时空变化
其他题名	Spatial-temporal change of landscape pattern in the distribution region of endemic species Tetraena mongolica Maxim.on Ordos Plateau
	甄江红 1; 苏根成 1; 张靖 2; 周瑞平 1
ISSN	1000-0585
出版年	2009
卷号	28 期号:4 页码:1031-1039
中文摘要	以1977、1990、2000及2005年遥感影像为信息源,利用RS、GIS技术及景观格局分析软件,对鄂尔多斯特有种四合木分布区景观格局的时空变化进行分析.结果表明:在景观水平上,28年来研究区景观格局趋于破碎,景观结构更加复杂并向异质化发展;各生境中,以石嘴山、桃司兔、千里山与乌达种群的景观格局较为破碎,景观构成向多样性与复杂化发展,乌家庙、棋盘井与海南种群中景观受损程度相对较小,景观中有连通度极高的优势斑块类型存在;各景观中,四合木是研究区的基质景观,但其优势地位不断下降,空间分布趋于分散,而工矿及城镇用地、耕地与林地、沙地、其他植被则大幅增长、连片延续发展,在景观中的影响程度逐渐加大.工矿发展和城市化进程以及不合理的土地利用方式引起的土地沙化是四合木减少及其分布区景观格局变化的直接原因.
英文摘要	Using the technology of remote sensing, geographical information system and the analysis software of landscape pattern, the paper analyzed four sensing images of Tetraena mongolica distribution region in different periods (1977, 1990, 2000, 2005) to study the dynamic changes of temporal and spatial landscape patterns based on the images interpreta-tion and landscape classification and cartography and the calculation of landscape index,The results show: (1) On landscape scale, patch number, landshape index, Shannon’s di-versity index and Shannon’s evenness index were increased, while mean patch size and dominance index were decreased year after year. It is indicated that the landscape pattern tended to be fragmented, landscape components tended to be complicated in the distribu-tion region of T. mongolica. (2) In the different habitats of Tetraena rnongolica the land-scape patterns in Shizuishan, Taositu, Qianlishan and Wuda populations were fragmented.The landscape structure tended to be diversified and complicated. While the landscape pat-terns in Wujiamiao, Qipanjing and Hainan populations were relatively integrated because of less severe human driving force. And there were preponderant patches connected each other in the landscape. (3) Of all of the landscape types, T. mongolica was the maximal landscape component and basic landscape type in the research region, but its dominant sta-tus was reduced in the 28-year period of and its distribution tended to be dispersed and fragmented. Besides the land for industrial, urban construction and farming purposes as well as desertified land and other vegetations were largely increased and tended to he con-nected. Their functions in the landscape were increasing gradually. (4) It is indicated that the industrial development and rapid urbanization and land desertification caused by irra-tional land use were direct reasons for the T. mongolica population area reduction and landscape pattern change of the research region.
中文关键词	四合木 ; 分布区 ; 景观格局 ; 时空变化
英文关键词	Tetraena rnongolica Maxim distribution area landscape pattern spatial-temporal change
语种	中文
国家	中国
收录类别	CSCD
WOS类目	GEOGRAPHY
WOS研究方向	Geography
CSCD记录号	CSCD:3575924
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/223383
作者单位	1.内蒙古师范大学地理科学学院, 呼和浩特, 内蒙古 010022, 中国; 2.内蒙古大学生命科学学院, 呼和浩特, 内蒙古 010021, 中国
推荐引用方式 GB/T 7714	甄江红,苏根成,张靖,等. 鄂尔多斯特有种四合木分布区景观格局时空变化[J],2009,28(4):1031-1039.
APA	甄江红,苏根成,张靖,&周瑞平.(2009).鄂尔多斯特有种四合木分布区景观格局时空变化.,28(4),1031-1039.
MLA	甄江红,et al."鄂尔多斯特有种四合木分布区景观格局时空变化".28.4(2009):1031-1039.