Analysis of Ecological Blockage Pattern in Beijing Important Ecological Function Area, China

Abstract

With the implementation of human activities, such as logging, reclamation, and construction, the increasing fragmentation of ecological space and the increasing blockage of biological migration corridors cause many threats to biodiversity conservation. In this study, we used the Northwest Beijing Ecological Containment Area as the research area. Based on an integrated circuit theoretical model, we identified functional connectivity networks and analyzed the spatial and temporal changes of ecological blockage patterns in the region from 1998–2018 in terms of the landscape connectivity, ecological breakpoints, pinch points, and barriers, respectively. The results show that the average remote sensing ecological index had a trend of decreasing and then increasing, and a total of 33, 34, and 63 habitat core areas and 70, 74, and 152 ecological corridors were identified in 1998, 2010, and 2018, respectively. The regions with high ecological blockage were mainly in the central part of Yanqing District, the southwest corner of the study area, and the eastern urban area. Although the number of potential ecological corridors gradually increases with the probability of migration in the study area, the blockage status and vulnerability of the ecological corridors continue to increase due to the conflict between land uses. The ecological status of the study area reflects the comprehensive effectiveness of the capital’s high-quality development under the strategic deployment of ecological civilization. In the context of habitat fragmentation, the effective protection and restoration of the ecological conditions in the ecological function areas is of great importance in guaranteeing the ecological quality and sustainable development of the country.

Construction, Evaluation, and Optimization of a Regional Ecological Security Pattern Based on MSPA–Circuit Theory Approach

“…In order to supplement the results regarding the lowest-cost corridor, the maps were constructed to show pinch locations in that corridor, as well as useful resistance values for Linkage Mapper [ 47 ]. Pinchpoint Mapper finds places where the loss of a small area could make the landscape less connected in a significant manner [ 48 , 49 ].…”

Construction of Karst Landscape Ecological Security Pattern Based on Conflict between Human and Nature in Puzhehei

“…This research integrated the center derived from the spatial distribution of ecological sources using MCR to identify "source-type ecological nodes". Additionally, the "ecological pinch points" and "ecological barriers" were identified as ecological nodes by employing the Pinchpoint Mapper component and the Barrier Mapper component of the Linkage Mapper toolkit [36].…”

Coupling Relationship between Rural Settlement Patterns and Landscape Fragmentation in Woodlands and Biological Reserves—A Case of Nanshan National Park

“…To repair fragmented landscape patches and protect internal ecosystem connections, a landscape-security-pattern approach has been widely adopted by most planners [43][44][45][46]. Landscape security patterns are certain spatial patterns that are composed of certain critical localities, locations, and spatial connections in the landscape.…”