干旱区生态环境知识资源中心(Arid): 新疆艾比湖湿地LUCC对景观格局演变的影响

Arid

	新疆艾比湖湿地LUCC对景观格局演变的影响
其他题名	Effect of LUCC Change on Evolution of Landscape Pattern in Ebinur Wetland
	孙倩 1; 阿丽亚·拜都热拉 1; 依力亚斯江·努尔麦麦提 2
来源期刊	土壤
ISSN	0253-9829
出版年	2018
卷号	50 期号:3 页码:583-592
中文摘要	以新疆艾比湖湿地保护区为研究区,采用1990年10月5日、2000年9月25日和2015年9月13日TM/ETM+影像,以土壤实测数据为基础,建立适宜的土地利用分类体系,分析了25 a间研究区的土地利用动态变化,以及景观格局的时空演变,从而深入探讨了土地利用变化对景观格局演变的影响。结果表明:①25 a间,研究区综合土地利用动态度为0.97%,且呈现逐年降低趋势,土地利用类型随着时间的推移,变化由剧烈逐步驱于平衡状态。19902000年间,林地和水田的面积增加,中轻度盐渍地和极重度盐渍地面积依然呈现明显的上升趋势;20002015年间,水体面积明显减少,沙漠面积急剧增加,重度盐渍地和极重度盐渍地面积呈现增加趋势。②25 a间研究区景观格局发生了很大的变化。蔓延度持续减小,分散与并列指数显著增加,景观的延展性下降,导致景观破碎化加剧。Shannon多样性指数和Shannon均匀度指数均呈现稳步增加趋势,这说明景观的异质性程度呈现上升趋势。③土地利用变化改变了景观格局,导致景观分散与并列指数增加,蔓延度降低,均匀度增加,研究区景观整体先向破碎化发展,后略有所好转,逐步向稳定优化的趋势发展,但总体的盐渍化和荒漠化趋势依然严峻。该研究进一步提出了改良方案,对研究区土地资源的合理利用和可持续发展研究具有重要意义。
英文摘要	The Ebinur Wetland Reserve was taken as the study area, the measured data of soil properties and TM/ETM+images on October 5 of 1990,September 25 of 2000 and September 13 of 2015 were used as the basic information. First, The feasible classification system of LUCC was setup, then the dynamic changes of land use and space-time evolution of landscape pattern were analyzed during the 25 years and the effects of land use changes on the evolution of landscape pattern were explored further and deeply. The results showed that: 1) The dynamic degree of land use was 0.97% from 1990 to 2015, showed a decreasing trend, and the change of land use transformed from severe state to equilibrium state. From 1990 to 2000, although the areas of forest land and paddy fields increased, the areas of mild-slight saline land and extremely severe saline land obviously increased. From 2000 and 2015, the area of water decreased evidently while the area of desert sharply increased, and the areas of severe saline and extremely severe saline increased too. 2) During the 25 years, great changes occurred in the landscape pattern. CONTAG decreased gradually, dispersity index increased sharply, ductility of the landscape declined, landscape fragmentation exacerbated. SHDI and SHEI showed a stable increasing trend, indicating the increase landscape heterogeneity. 3) The change of land use influenced landscape pattern, increased landscape dispersity and evenness index while decreased CONTAG, landscape was firstly fragmentated and then turned better to optimized and stabilized, but generally the trend of salinization and desertification was still stern. The study proposes further an improvement scheme, which is significant to rational use and sustainable development of land resources in study area.
中文关键词	土地利用/土地覆被 ; 景观格局 ; 艾比湖湿地 ; 盐渍化
英文关键词	Land use and land cover Landscape pattern Ebinur wetland Salinization
语种	中文
国家	中国
收录类别	CSCD
WOS类目	GEOSCIENCES MULTIDISCIPLINARY
WOS研究方向	Geology
CSCD记录号	CSCD:6272535
来源机构	新疆大学 ; 新疆农业大学
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/238409
作者单位	1.新疆农业大学林学与园艺学院, 乌鲁木齐, 新疆 830052, 中国; 2.新疆大学, 绿洲生态教育部重点实验室, 乌鲁木齐, 新疆 830046, 中国
推荐引用方式 GB/T 7714	孙倩,阿丽亚·拜都热拉,依力亚斯江·努尔麦麦提. 新疆艾比湖湿地LUCC对景观格局演变的影响[J]. 新疆大学, 新疆农业大学,2018,50(3):583-592.
APA	孙倩,阿丽亚·拜都热拉,&依力亚斯江·努尔麦麦提.(2018).新疆艾比湖湿地LUCC对景观格局演变的影响.土壤,50(3),583-592.
MLA	孙倩,et al."新疆艾比湖湿地LUCC对景观格局演变的影响".土壤 50.3(2018):583-592.