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	Evaluating land ecological security and examining its relationships with driving factors using GIS and generalized additive model
	Feng, Yongjiu1,2,3; Yang, Qianqian1; Tong, Xiaohua4; Chen, Lijuan3,5
刊名	SCIENCE OF THE TOTAL ENVIRONMENT
	2018-08-15
卷号	633页码:1469-1479
关键词	Land ecological security Spatial patterns Spatial determinants Generalized additive model Ningbo
ISSN号	0048-9697
DOI	10.1016/j.scitotenv.2018.03.272
通讯作者	Tong, Xiaohua(xhtong@tongji.edu.cn)
英文摘要	Land ecological security (LES) refers to the environmental health and sustainability of the land resources and ecosystems, which are substantially affected by biophysical and socio-economic factors. We assess the spatiotemporal patterns of LES in Ningbo city on the southeast coast of China from 1975 to 2015 and explore the effects of driving factors. Expert evaluation is used to estimate the LES score for each 2 x 2 km grid and map the patterns by Kriging. Five levels of LES are used: very secure, secure, neutral, insecure and very insecure. A generalized additive model (GAM) captures the relationships between LES and driving factors, and identifies the dominant factors. Our results show that the Ningbo LES has been deteriorating since 1975, and it is now very insecure in Ningbo city center and the central area of the satellite city Cixi. The dominant factors affecting LES are distances to city center (D-city), district center (D-district) and road networks (D-roads), and the moving window built-up area (D-ndbi). Among these, D-ndbi is most important as inferred by the highest explained deviance of the GAM. This study improves our understanding of the spatiotemporal patterns of LES in Ningbo and how LES changes. As a result, it provides insight to help local governments optimize land-use configuration, potentially improving the environment and ecosystems and creating a more environmentally friendly city. (c) 2018 Elsevier B.V. All rights reserved.
收录类别	SCI ; SSCI
WOS关键词	URBAN HEAT-ISLAND ; PSR MODEL ; LANDSCAPE PATTERN ; CELLULAR-AUTOMATA ; AIR-POLLUTION ; COVER CHANGE ; CHINA ; URBANIZATION ; METHODOLOGY ; ADMISSIONS
WOS研究方向	Environmental Sciences & Ecology
WOS类目	Environmental Sciences
语种	英语
出版者	ELSEVIER SCIENCE BV
WOS记录号	WOS:000432475300143
内容类型	期刊论文
URI标识	http://www.corc.org.cn/handle/1471x/2557834
专题	寒区旱区环境与工程研究所
通讯作者	Tong, Xiaohua
作者单位	1.Shanghai Ocean Univ, Coll Marine Sci, Shanghai 201306, Peoples R China 2.Shanghai Ocean Univ, Key Lab Sustainable Exploitat Ocean Fisheries Res, Shanghai 201306, Peoples R China 3.Univ Queensland, Sch Earth & Environm Sci, Brisbane, Qld 4072, Australia 4.Tongji Univ, Coll Surveying & Geoinformat, Shanghai 200092, Peoples R China 5.Chinese Acad Sci, Key Lab Ecohydrol Inland River Basin, Northwest Inst Ecoenvironm & Resources, Lanzhou 730000, Gansu, Peoples R China
推荐引用方式 GB/T 7714	Feng, Yongjiu,Yang, Qianqian,Tong, Xiaohua,et al. Evaluating land ecological security and examining its relationships with driving factors using GIS and generalized additive model[J]. SCIENCE OF THE TOTAL ENVIRONMENT,2018,633:1469-1479.
APA	Feng, Yongjiu,Yang, Qianqian,Tong, Xiaohua,&Chen, Lijuan.(2018).Evaluating land ecological security and examining its relationships with driving factors using GIS and generalized additive model.SCIENCE OF THE TOTAL ENVIRONMENT,633,1469-1479.
MLA	Feng, Yongjiu,et al."Evaluating land ecological security and examining its relationships with driving factors using GIS and generalized additive model".SCIENCE OF THE TOTAL ENVIRONMENT 633(2018):1469-1479.

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