Reclamation-oriented spatiotemporal evolution of coastal wetland along Bohai Rim, China

doi:10.1007/s13131-022-1987-3

	Reclamation-oriented spatiotemporal evolution of coastal wetland along Bohai Rim, China
	Wei, Fan 1; Han, Mei 1; Han, Guangxuan2 ; Wang, Min 1; Tian, Lixin 1; Zhu, Jiqian 1; Kong, Xianglun 1
发表期刊	ACTA OCEANOLOGICA SINICA
ISSN	0253-505X
	2022-09-01
卷号	41 期号:9 页码:192-204
关键词	Bohai Rim coastal wetlands land reclamation evolutionary mechanisms coastal management
DOI	10.1007/s13131-022-1987-3
通讯作者	Han, Mei(hanmei568568@126.com)
英文摘要	Coastal wetlands are located in the ecotone of interaction between the land surface and sea, and anthropogenic activities extensively interfere with these wetlands through the reclamation of large tidal wetlands and destruction of the function of the ecosystems. In this study, we investigated the dynamic evolutionary characteristics of the Bohai Rim coastal area over the past 40 years using the Modified Normalized Difference Water Index, the fractal dimension, object-oriented classification, the land-use transfer trajectory, and regression analysis. Additionally, we quantified and monitored the evolution of reclamation and analyzed the correlation between reclamation and coastal wetlands based on 99 Landsat-2, -5, and -8 images (at 60 m and 30 m spatial resolution) over the period 1980-2019. The results are as follows. (1) The coastline of the Bohai Rim increased by 1 631.2 km from 1980 to 2019 with a zigzag variation. The artificial coastline increased by 2 946.1 km, whereas the natural coastline decreased by 90%. (2) The area of man-made wetlands increased by 3 736.9 km(2), the area of construction land increased by 1 008.4 km(2), and the natural wetland area decreased by 66%. The decrease of tidal flats is the main contributor to the decrease of natural wetland area (takes account for 91.1%). Coastal areas are affected by intense human disturbance, which was taken place across a large area of tidal flats and caused the landscape to fragment and be more heterogeneous. The coastal zone development activities were primarily concentrated in the southern Laizhou Bay, the Yellow River Delta, the Bohai Bay, the northern Liaodong Bay, and the Pulandian Bay. The solidified shorelines and increase in sea level have resulted in intertidal wetlands decreasing and impaired wetland ecology. (3) There is a good agreement between reclamation and the size of the coastal wetlands. Both land reclamation and the reduction in coastal wetland areas are significantly related to the population size, fishery output value, and urbanization rate. In summary, human activities, such as the construction of aquaculture ponds and salt pans, industrialization, and urbanization, are the primary forces that influence the environmental changes in the coastal region. This study is beneficial for establishing and improving the systems for the rational development and utilization of natural resources, and provides theoretical references for restoring wetland ecology and managing future reclamation activities in other coastal zone-related areas.
资助机构	National Social Science Foundation of China
收录类别	SCI
语种	英语
关键词[WOS]	LAND-USE CHANGE ; RIVER DELTAS ; SHORELINE ; IMPACTS ; SEA ; MANAGEMENT ; SYSTEM ; BAY
研究领域[WOS]	Oceanography
WOS记录号	WOS:000850118600016
引用统计	被引频次：1[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.yic.ac.cn/handle/133337/31668
专题	中国科学院海岸带环境过程与生态修复重点实验室中国科学院海岸带环境过程与生态修复重点实验室_海岸带环境过程实验室
通讯作者	Han, Mei
作者单位	1.Shandong Normal Univ, Coll Geog & Environm, Jinan 250358, Peoples R China 2.Chinese Acad Sci, Yantai Inst Coastal Zone Res, Key Lab Coastal Zone Environm Proc & Ecol Remedia, Yantai 264003, Peoples R China
推荐引用方式 GB/T 7714	Wei, Fan,Han, Mei,Han, Guangxuan,et al. Reclamation-oriented spatiotemporal evolution of coastal wetland along Bohai Rim, China[J]. ACTA OCEANOLOGICA SINICA,2022,41(9):192-204.
APA	Wei, Fan.,Han, Mei.,Han, Guangxuan.,Wang, Min.,Tian, Lixin.,...&Kong, Xianglun.(2022).Reclamation-oriented spatiotemporal evolution of coastal wetland along Bohai Rim, China.ACTA OCEANOLOGICA SINICA,41(9),192-204.
MLA	Wei, Fan,et al."Reclamation-oriented spatiotemporal evolution of coastal wetland along Bohai Rim, China".ACTA OCEANOLOGICA SINICA 41.9(2022):192-204.