Ecological risk caused by land use change in the coastal zone: a case study in the Yellow River Delta High-Efficiency Ecological Economic Zone

35th International Symposium on Remote Sensing of Environment

地球科学;生态环境科学

Di, X.H.^1,2 ; Wang, Y.D.^1,2 ; Hou, X.Y.^1

Yantai Institute of Coastal Zone Research (YIC), Chinese Academy of Sciences (CAS), No. 17 Chuihui Road Laishan District, Yantai, China^1

University of Chinese Academy of Sciences, No. 19A Yuquan Road Shijingshan District, Beijing, China^2

关键词: Ecological economics;    Ecological risk index;    Ecological services;    Land-use structures;    Optimization strategy;    Regional ecological risk assessments;    Regional landscapes;    Visual interpretation;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/17/1/012068/pdf
DOI  :  10.1088/1755-1315/17/1/012068

学科分类：环境科学（综合）

来源: IOP

【 摘 要 】

China's coastal zone plays an important role in ecological services production and social-economic development; however, extensive and intensive land resource utilization and land use change have lead to high ecological risk in this area during last decade. Regional ecological risk assessment can provide fundamental knowledge and scientific basis for better understanding of the relationship between regional landscape ecosystem and human activities or climate changes, facilitating the optimization strategy of land use structure and improving the ecological risk prevention capability. In this paper, the Yellow River Delta High-Efficiency Ecological Economic Zone is selected as the study site, which is undergoing a new round of coastal zone exploitation and has endured substantial land use change in the past decade. Land use maps of 2000, 2005 and 2010 were generated based on Landsat images by visual interpretation method, and the ecological risk index was then calculated. The index was 0.3314, 0.3461 and 0.3176 in 2000, 2005 and 2010 respectively, which showed a positive transition of regional ecological risk in 2005.