Institutional Repository of Key Laboratory of Coastal Zone Environmental Processes, Yantai Institute of Coastal Zone Research, Chinese Academy of Sciences (KLCEP)
| 烟台市城镇空间扩展及区域景观生态风险 | |
| Alternative Title | Urbanization spatial expansion and regional landscape ecological risk of Yantai City |
周迪 ; 施平; 吴晓青; 马金卫; 梁守真
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| Source Publication | 生态学杂志
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| ISSN | 1000-4890 |
| 2014 | |
| Volume | 33Issue:2Pages:477-485 |
| Keyword | 城镇扩展 景观格局 生态风险 烟台市 |
| Contribution Rank | 烟台海岸带研究所; 山东省临朐第一中学; 中国科学院深圳先进技术研究院 |
| Department | 中科院海岸带环境过程与生态修复重点实验室 |
| Abstract | 采用遥感、GIS及数理统计方法,引入城市扩展强度指数研究了烟台市区1974—2009年城镇空间扩展时空变化特征,并利用景观指数和生态风险指数,研究了1990—2009年在城镇扩展下的烟台市区城镇景观格局动态变化和区域生态风险空间特征。结果表明:1974—2009年,烟台市区城镇用地面积增幅189.77 km~2,其中2004—2009年城镇用地扩展强度指数是1974—1990年的3.92倍。城镇和耕地分别是研究区土地利用面积变化最显著的两大类型,土地利用格局景观指数变化反映出该期间人类活动干扰强度逐渐加剧。研究区景观生态风险呈圈层状分布,靠近海岸线的区域生态风险较高,远离海岸线的内陆生态风险则较低。2009年高生态风险区和较高生态风险区比例是1990年的2.23倍,城镇扩展强度与区域生态风险之间呈现良好的线性关系。 |
| Other Abstract | By methods of remote sensing, GIS and mathematical statistics, together with urbanization intensity index, the spatial-temporal evolution characteristics of urbanization expansion of a coastal city, Yantai from 1974 to 2009 were studied. Meanwhile, based on landscape pattern metrics and ecological risk index, we studied the landscape pattern dynamic changes and spatial characteristics of landscape ecological risk during 1990-2009 under condition of urban expansion. The results showed that the area of urban land increased by 189. 77 km(2) during 1974-2009 and the average annual expansion area was 5. 42 km(2). The urbanization intensity index during 2004-2009 was 3. 92 times of that during 1974-1990. The most significant changes of land uses were urban land and farmland. The changes of landscape pattern metrics for land use patterns indicated that the intensity of human activities was increasing gradually in this period. The landscape ecological risk pattern of Yantai City appeared as a circle distribution along the coastline. The farther the distance to the coastline, the smaller the ecological risk index was. The ratio of high ecological risk and sub-high ecological risk zones of the study case in 2009 was 2. 23 times of that in 1990. A significant linear relationship of urbanization intensity index and regional ecological risk was observed in the study. |
| Subtype | 期刊论文 |
| Funding Organization | 国家自然科学基金项目,国家海洋局海洋公益性行业科研专项 |
| Indexed By | CSCD |
| Language | 中文 |
| CSCD ID | CSCD:5050378 |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.yic.ac.cn/handle/133337/8426 |
| Collection | 中科院海岸带环境过程与生态修复重点实验室 中国科学院烟台海岸带研究所 中科院海岸带环境过程与生态修复重点实验室_海岸带信息集成与战略规划研究中心 中科院烟台海岸带研究所知识产出 |
| Recommended Citation GB/T 7714 | 周迪,施平,吴晓青,等. 烟台市城镇空间扩展及区域景观生态风险[J]. 生态学杂志,2014,33(2):477-485. |
| APA | 周迪,施平,吴晓青,马金卫,&梁守真.(2014).烟台市城镇空间扩展及区域景观生态风险.生态学杂志,33(2),477-485. |
| MLA | 周迪,et al."烟台市城镇空间扩展及区域景观生态风险".生态学杂志 33.2(2014):477-485. |
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