| Rapid economic development has brought out a series of problems such as resources waste, environmental pollution, ecological damage, etc. Maintaining ecosystem sustainable development has been deemed as the focus of current research topic. This study took Huzhou city as case study. Multi-date land cover and ecosystem status and change information were first extracted from time series (2000-2014) remote sensing images (Landsat 5/7/8) by using object-oriented segmentation and knowledge-based mining method. Evaluation system and index were also established for ecological pattern and ecological capacity analysis. Finally, the study attempted to explore the dynamics of ecosystem pattern and ecological capacity, and revealed existing problems aiming to provide scientific reference for environmental protection and sustainable development.The results indicated that:during the monitoring period of 2000-2014, Huzhou city experienced significant change of ecosystem configuration, especially in 2005-2010. Arable land and town were found as the most active classes suffering from dramatic change. Concomitant with rapid urbanization, the town-ecosystems constantly expanded outwards and encroached huge number of arable land. Meanwhile, except forest, all of the ecosystem classes showed different degree of decrease in area. Furthermore, the landscape patch exhibited even pattern of spatial distribution. However, long-term human disturbance has intensified the fragmentation degree of ecosystem landscape pattern. In addition, the ecological footprint demand showed fluctuating before and after 2010 and the ecological capacity showed fluctuating before and after 2005. Unfortunately, results further revealed that the ecological footprint demand much exceeded the ecological capacity supply indicating potential challenge in the sustainable development of ecosystem in Huzhou city. |
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