20世纪40年代初以来中国大陆海岸线变化特征

CORC > 烟台海岸带研究所 > 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 > 海岸带信息集成与综合管理实验室

	20世纪40年代初以来中国大陆海岸线变化特征
	侯西勇; 毋亭 ; 侯婉 ; 陈晴 ; 王远东 ; 于良巨
刊名	中国科学:地球科学
	2016-08-20
卷号	46 期号:8 页码:1065-1075
关键词	中国大陆海岸线岸线结构岸线分维数岸线变化速率陆海变化海湾面积
ISSN号	1674-7240
其他题名	Shape changes of major gulfs along the mainland of Chinasince the early 1940s
通讯作者	侯西勇，中国科学院烟台海岸带研究所，E-mail：xyhou@yic.ac.cn
产权排序	中国科学院烟台海岸带研究所;中国科学院大学;
中文摘要	基于多时相地图资料、遥感影像以及覆盖整个大陆海岸带的野外考察,建立20世纪40年代初以来6个时相的中国大陆海岸线数据,并从岸线结构、岸线分形、岸线变化速率、陆海格局和海湾面积等角度分析过去70年来中国大陆海岸线的变化特征.结论如下:大陆海岸线结构变化显著,岸线人工化是最主要的特征,目前自然岸线的保有比例已经不足1/3;大陆海岸线分维数具有"北方<整体<南方"的宏观格局特征,但近年来北方海岸带急剧的岸线人工化过程通过大大缩小岸线分维数的南北差异而显著改变了中国大陆海岸线的分形特征;大陆沿海的陆海格局与过程特征复杂,超过68%的海岸总体向海扩张,超过22%的海岸总体向陆后退,而净变化结果是陆地面积...
英文摘要	Impacted by climate changes and human activities, the coastal zone of China has undergone various dramatic changes, among which, shape change of major gulfs (including bays and estuaries) is one of the most important aspects. In this paper, spatial dataset of gulf shoreline and gulf shape in seven phases since the early 1940s was delineated based on topographic maps and remote sensing imageries, and a group of indices including the ratio of natural shoreline, the shoreline utilization degree, shoreline swing direction, gulf area, gulf shape index and gulf centroid were used to analyze the spatial-temporal characteristics of gulfs in detail. It turned out that: in general, shape changes of major gulfs in the mainland of China were significant and complicated during the past 70 years, specifically, visible changes of shoreline structure, especially the decreases in both length and ratio of natural shoreline took place; the shoreline utilization degree increased remarkably because more and more natural shoreline had been artificalized; the fact that shoreline seaward shift caused by sea reclamation occurred in the majority of gulfs; spatial size (area) decreased in most of gulfs due to the fast and extensive sea reclamation; the geometric shape of most gulfs had become more complicated while the discrepancies among all the gulfs were narrowed; the centroid of most gulfs moved toward the sea; gulf-shape variations exhibited remarkable spatio-temporal differences. It is obvious that human activities, especially sea reclamation, have become the key driving force of gulf shape change since 1990. Based on the above-mentioned findings, classification management strategy based on dominant-function oriented gulf classification is strongly recommended, and gulf-based management should be strengthen in order to improve the abilities of Integrated Coastal Zone Management (ICZM) practices in China.
收录类别	CSCD
语种	中文
CSCD记录号	CSCD:5797261
内容类型	期刊论文
源URL	[http://ir.yic.ac.cn/handle/133337/17320]
专题	烟台海岸带研究所_海岸带信息集成与综合管理实验室
作者单位	1.中国科学院烟台海岸带研究所 2.中国科学院大学
推荐引用方式 GB/T 7714	侯西勇,毋亭,侯婉,等. 20世纪40年代初以来中国大陆海岸线变化特征[J]. 中国科学:地球科学,2016,46(8):1065-1075.
APA	侯西勇,毋亭,侯婉,陈晴,王远东,&于良巨.(2016).20世纪40年代初以来中国大陆海岸线变化特征.中国科学:地球科学,46(8),1065-1075.
MLA	侯西勇,et al."20世纪40年代初以来中国大陆海岸线变化特征".中国科学:地球科学 46.8(2016):1065-1075.