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| 1 | 基于多时相遥感影像的皖北地区城市建成区扩张时空特征分析——以安徽省阜阳市为例显示文摘以遥感影像和统计年鉴为数据源,选取城市空间扩张速度等为测度指标,运用空间形态分析等方法探讨了1981-2018年安徽省阜阳市城市建成区扩张的时空演变规律及其影响因素。结果表明:①阜阳市城市建成区处于扩张阶段,扩张速度和强度呈增长趋势。②城市建成区外延城市化和内涵城市化并存,其空间形态由紧凑型向分散型转变。③城市重心由西北部向东南部转移,东南方向仍是城市扩张主导方位。④经济、人口、政策、地理环境是影响建成区扩张的主要因素。 | 蒋伟峰 李天宇 李倩 吴锶梦 周裕祺 陆林 | 2021 | 资源开发与市场2021，37，7： | 5 |
| 2 | The Change of Land Use/Cover and Characteristics of Landscape Pattern in Arid Areas Oasis: An Application in Jinghe, Xinjiang显示文摘This paper uses 3S technology in macroscopic. Combining the integrated technology of ecological quantity analytical method with GIS technology through ArcGIS and Fragstats, the authors study the images of 1972, 1990, 2001, and 2005 and obtained land use data in Jinghe County. Then, the change of land use/cover and landscape pattern had been analyzed in the Jinghe County of Xinjiang. The conclusions were as follows: (1) The trend of LUCC is that the area of oasis expands slowly in nearly 33 years between 1972 to 2005 in Jinghe County. (2) The water area is mainly influenced by Ebinur Lake, so the area expands a little in this period. (3) The area of salinization-land expands at first and reduces later. The area of sand land decreases and the other land class increases, while the probability of transfer is always high. (4) Landscape change is also obvious throughout the decades. Overall, landscape density increases, the largest path index decreases at first and expends later, the weight area index decreases, and the shape of landscape becomes regulated. The nearest distances, the degrees of reunite, and outspread decreases. It shows that the connection of the main path in 1972 is better than 2005, wherein the patch becomes more complex. From the changes of Shannon’s Diversity Index and Shannon’s Evenness Index, we know that the diversity of landscape and the Interspersion Juxtaposition Index increase. The degree of diversity landscape and fragmentation increase also shows that the land uses become more complex. All in all, it is essential to intensify the spatial relationships among landscape elements and to maintain the continuity of landscape ecological process and pattern in the course of area expansion. | TASHPOLAT·Tiyip Hsiang-te KUNG | 2010 | Geo-Spatial Information Science2010，13，3： | 2 |
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