Evaluating landscape ecological sensitivity of an estuarine island based on landscape pattern across temporal and spatial scales

doi:10.1016/j.ecolind.2019.01.012

	Evaluating landscape ecological sensitivity of an estuarine island based on landscape pattern across temporal and spatial scales
	Chi, Yuan 1,2; Zhang, Zhiwei 1; Gao, Jianhua 2; Xie, Zuolun 3; Zhao, Mengwei 1; Wang, Enkang 1
刊名	ECOLOGICAL INDICATORS
	2019-06
卷号	101 页码:221-237
关键词	Landscape ecological sensitivity Spatiotemporal characteristics Pattern Scale Landscape fragmentation Estuarine areas
ISSN号	1470-160X
DOI	10.1016/j.ecolind.2019.01.012
英文摘要	Evaluating landscape ecological sensitivity in estuarine areas is important for providing reference for landscape optimization and ecological conservation, however, the comprehensive characteristics of the landscape ecological sensitivity, including the changes under various disturbances, the spatiotemporal heterogeneities, and the multiple scale effects, have received insufficient attention. A model to evaluate estuarine landscape ecological sensitivity was established based on landscape pattern across temporal and spatial scales. Two new indices, namely, landscape ecological condition index (LECI) and landscape ecological sensitivity index (LESI), were proposed using remote sensing and geographic information system methods. Chongming Island, a typical and important estuarine area in China, was selected as the study area to demonstrate the model. Evaluation factors were integrated following the landscape pattern; different years and periods in the last 30 years were used to reflect the temporal scales; and spatial scales of 100 m, 200 m, 400 m, and 800 m, which refer to the evaluation unit size, were adopted to validate the spatial scale effect and seek the optimal scale to apply the model. Results indicated that the LECI initially slightly decreased and then increased from 1988 to 2017, and the LESI continuously increased along the periods. The two indices exhibited distinct spatiotemporal heterogeneities, which were driven by different development goals and strategies of the island in different periods. Along the scales from 100m to 800 m, the LECI and LESI in the entire study area gradually decreased; they tended to be homogenizing, and the details were lost in the spatial distributions. The 200m scale balanced all the demands of accuracy, spatial heterogeneity, and appropriate data volume, and was the optimal spatial scale to apply the model. The application of the model in Chongming Island verified its effectiveness to represent the comprehensive characteristics of the estuarine landscape ecological sensitivity, and the model can be widely used in different estuarine areas because of its high applicability.
资助项目	Basic Scientific Fund for National Public Research Institutes of China[2018Q07]
WOS关键词	YELLOW-RIVER DELTA ; CHONGMING ISLAND ; LAND-USE ; SPATIOTEMPORAL CHARACTERISTICS ; HABITAT SUITABILITY ; SOIL-SALINITY ; ECO-ISLAND ; FRAGMENTATION ; BIODIVERSITY ; SHANGHAI
WOS研究方向	Biodiversity & Conservation ; Environmental Sciences & Ecology
语种	英语
出版者	ELSEVIER SCIENCE BV
WOS记录号	WOS:000470963300024
内容类型	期刊论文
源URL	[http://ir.fio.com.cn:8080/handle/2SI8HI0U/24716]
专题	自然资源部第一海洋研究所
通讯作者	Zhang, Zhiwei
作者单位	1.Minist Nat Resources, Inst Oceanog 1, 6 Xianxialing Rd, Qingdao 266061, Shandong, Peoples R China 2.Nanjing Univ, Sch Geog & Ocean Sci, Nanjing 210023, Jiangsu, Peoples R China 3.East China Normal Univ, State Key Lab Estuarine & Coastal Res, Shanghai 200062, Peoples R China
推荐引用方式 GB/T 7714	Chi, Yuan,Zhang, Zhiwei,Gao, Jianhua,et al. Evaluating landscape ecological sensitivity of an estuarine island based on landscape pattern across temporal and spatial scales[J]. ECOLOGICAL INDICATORS,2019,101:221-237.
APA	Chi, Yuan,Zhang, Zhiwei,Gao, Jianhua,Xie, Zuolun,Zhao, Mengwei,&Wang, Enkang.(2019).Evaluating landscape ecological sensitivity of an estuarine island based on landscape pattern across temporal and spatial scales.ECOLOGICAL INDICATORS,101,221-237.
MLA	Chi, Yuan,et al."Evaluating landscape ecological sensitivity of an estuarine island based on landscape pattern across temporal and spatial scales".ECOLOGICAL INDICATORS 101(2019):221-237.