Spatiotemporal variation and coupling of grazing intensity and ecosystem based on four quadrant model on the Inner Mongolia

Liao, Zhihong; Jiang, Xuebing; Wang, Jiping; You, Yanan; Wang, Luying; Chang, Shihui; Wei, Changwen; Zhang, Yiming; Li, Chuang

doi:10.1016/j.ecolind.2023.110379

Cited by 13 publications

(1 citation statement)

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“…As opposed to earlier research that examined the relationship between habitat and urbanization, our results suggest that changes in the distribution of different land cover types during urban development are directly related to the HCNs for wildlife in urban areas. Exploring the complex effects of habitat fragmentation on wildlife habitats due to urban expansion and identifying specific outcomes triggered by fragmentation processes are important issues for relevant scientific research and urban planning [42][43][44].…”

Section: Urban Expansion and The Hcnsmentioning

confidence: 99%

Impacts and Predictions of Urban Expansion on Habitat Connectivity Networks: A Multi-Scenario Simulation Approach

Chang,

Su,

Jiang

et al. 2023

Forests

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Urban expansion is leading to the loss and fragmentation of habitats, which poses a threat to wildlife. People are hopeful that, through scientific urban planning and the adoption of innovative models for human communities, such a situation can be improved. Thus, a case study was carried out in Nanning City, China, to extract habitats, build an ecological resistance surface, and construct a habitat connectivity network (HCN). To simulate changes to unused land in the future, we put forth the A (the parcel is divided into strips), B (the parcel is divided into two strips), C (the central area of the parcel is planned as a quadrangle), and D (opposite to Scenario C, the peripheral area is green space) scenarios of human communities that guarantee a 30% ratio of green space, and established the corresponding HCNs. The results indicate that: (1) Currently, the habitats cover approximately 153.24 km2 (34.08%) of the entire study area. The ecological corridors in this region amount to a total of 5337, and the topological indicators and robustness indicate a strong stability of the current HCN. (2) With urban expansion, once continuous habitats are being fragmented into smaller green spaces, it is estimated that the habitats will shrink by 64.60 km2. The topological indicators and robustness reveal that the stability of the HCNs becomes lower as well. Multiple scenario simulations demonstrated that Scenario D is better than Scenarios B and C, while Scenario A performed the worst. (3) Furthermore, we observed a stronger negative impact of urban expansion on local connectivity. This indicates that the influence of urban expansion on the local HCNs is often more pronounced and may even be destructive. Our findings can advise urban planners on decisions to minimize the impact of urban expansion on wildlife.

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Section: Urban Expansion and The Hcnsmentioning

confidence: 99%