1.Beijing Key Laboratory for Remote Sensing of Environment and Digital Cities, Faculty of Geographical Science, Beijing Normal University, Beijing 100875, China 2.Key Laboratory of Environmental Change and Natural Disaster of Ministry of Education, Faculty of Geographical Science, Beijing Normal University, Beijing 100875, China 3.State Key Laboratory of Earth Surface Processes and Resource Ecology, Faculty of Geographical Science, Beijing Normal University, Beijing 100875, China 4.Chinese Research Academy of Environmental Sciences, Beijing 100012, China
Wetland, one of the most important ecosystems on Earth, is well known as belonging to three major ecosystems together with forest and ocean. In recent years, wetland ecosystems have been threatened by the impact of human activities and urban development. It is of great significance to carry out the study of the relationship between wetland landscape evolution and human disturbance and to protect the ecological environment of wetland in Xiong’an New Area. In this paper, the authors analyzed the wetland landscape evolution and the response to human disturbance in Xiong’an New Area based on the moving window landscape method by using the land use data from the late 1980s to 2015. Some conclusions have been reached: From the 1980s to 2015, wetland landscape changed in Xiong’an New Area. From the time series, the wetland area showed a decrease trend mainly and wetland fragmentation increased gradually. The patch shape became complicated and the degree of connection was reduced. From the spatial distribution pattern, after the year of 2000, the wetlands fragmentation gradually increased in the central and northeastern area, and the fragmentation from the core area of the central wetlands to the edge gradually increased. From the 1980s to 2015, human disturbances showed a decreased trend mainly. The human disturbance decreased in the central and southwestern area from the 1980s to 2000. From 2000 to 2015, the human disturbance increased and then slowed down, which indicated that the wetland had shifted to the low intensity and sustainable development under the implementation of wetland protection policies. The human disturbance of the surrounding areas was affected by the expansion of construction land. The human disturbance has a good correspondence with wetland distribution.
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