Assessment of ecological security in Changbai Mountain Area, China based on MODIS data and PSR model

Fang Huang; Ping Wang; Xin Qi

doi:10.1117/12.2068884

8 November 2014 Assessment of ecological security in Changbai Mountain Area, China based on MODIS data and PSR model

Fang Huang, Ping Wang, Xin Qi

Proceedings Volume 9260, Land Surface Remote Sensing II; 926034 (2014) https://doi.org/10.1117/12.2068884
Event: SPIE Asia-Pacific Remote Sensing, 2014, Beijing, China

Abstract

The assessment of ecological security is to identify the stability of the ecosystem, and to distinguish the capacity of sustainable health and integrity under different kinds of risks. Using MODIS time series images from 2000 to 2008 as the main data source, the derived parameters including NDVI, the ratio of NPP and GPP, forest coverage, landscape diversity and ecological flexibility etc. are integrated to depict the properties of the ecological system. The pressure and response indicators such as population density, industrial production intensity, arable land per capita, fertilizer consumption, highway density, agricultural mechanization level and GDP per capita are also collected and managed by ArcGIS. The ‘pressure–state–response’ (PSR) conceptual model and a hierarchical weighted model are applied to construct an evaluation framework and determine the state of ecological security in Changbai Mountain area. The results show that the ecological security index (ESI) values in 2000 and 2008 were 5.75 and 5.59 respectively, indicating the ecological security state in Changbai Mountain area degraded. In 2000, the area of in good state of ecological security was 21901km², occupying 28.96% of the study region. 48201 km² of the land were with moderate level. The grades of ESI in Dunhua, Longjing and Antu decreased from moderate to poor. Though the ESI value of Meihekou increased by 0.12 during 2000-2008, it was still in a very poor state of ecological security induced by intensive human activities. The ecological security situation of Changbai Mountain region was not optimistic on the whole.

Citation Download Citation

Fang Huang, Ping Wang, and Xin Qi "Assessment of ecological security in Changbai Mountain Area, China based on MODIS data and PSR model", Proc. SPIE 9260, Land Surface Remote Sensing II, 926034 (8 November 2014); https://doi.org/10.1117/12.2068884

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