Developing Ecological Networks based on MSPA and Least-cost Path Method in Bazhong western new district

Feng, 许峰 Xu; Haiwei, 尹海伟 Yin; Fanhua, 孔繁花 Kong; Jiangang, 徐建刚 Xu

doi:10.5846/stxb201402130248

Cited by 22 publications

(20 citation statements)

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“…Unlike the traditional ecological analysis methods at a coarse scale, Morphological Spatial Pattern Analysis (MSPA) can identify and segment the raster image pixels through mathematical calculations to derive the ecological patches (Qin et al, 2023). MSPA can divide the data into seven non-overlapping landscape morphology classes of core, isolated island, gap, edge area, connecting bridge, traffic circle, and branches (Xu et al, 2015), among which the core is considered as the ecological source site.…”

Section: Methodsmentioning

confidence: 99%

Does the Construction of a Power Transmission Line (PTL) in a Coastal Mountainous Area Affect the Regional Ecological Security?—Taking Fujian Tangyuan PTL as an Example

Cuichun,

Xiaomei,

Zhipeng

et al. 2024

Journal of Resources and Ecology

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Section: Methodsmentioning

confidence: 99%

Does the Construction of a Power Transmission Line (PTL) in a Coastal Mountainous Area Affect the Regional Ecological Security?—Taking Fujian Tangyuan PTL as an Example

Cuichun,

Xiaomei,

Zhipeng

et al. 2024

Journal of Resources and Ecology

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“…Its relative size visually reflects the changes in the topological network structure after damage. Connectivity robustness, on the other hand, signifies the network's ability to maintain connectivity among its elements and facilitate the transmission of substances and energy even after nodes or edges are dysfunctional due to natural or human-induced disturbances 28,55 .…”

Section: Network Robustnessmentioning

confidence: 99%

“…Internally, ecological networks consist of multiple ecological source areas and corridors. Externally, ecological networks are directly exposed to the surrounding environment, and the uncertainties of external disturbances can cause damage to the networks [27][28] . The extent of this damage is closely related to the topological properties of the networks themselves.…”

Section: Introductionmentioning

confidence: 99%

Analysis of the Features of Spatiotemporal Changes in the Land-Use Landscape Pattern and Ecological Network of Xuzhou Planning Area

Zhou,

Chu,

2023

Preprint

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Ongoing rapid urbanization has triggered significant changes in land use, rendering landscape patterns adversely impacted and certain habitat patches degraded. Ecological networks have consequently contracted overall. As such, an investigation into how land-use landscape patterns and ecological networks change over time and space is of major significance for ecological restoration and regional sustainability. Taking Xuzhou Planning Area as a case study, we examined spatiotemporal changes and features of the urban landscape pattern by employing the land-use change degree, the land-use transition matrix, and quantified landscape pattern indices. An ecological network analysis, which studies the changes in network connectivity and robustness, as well as their causes and contributors, was undertaken to probe into the features and trends of spatiotemporal changes in the land-use landscape pattern and ecological network amid expeditious urbanization. Analysis results unveiled the following: (1) The area proportions of farmland, forest, grassland, water areas, land for construction, and unused land changed from 71.25%, 9.47%, 1.44%, 3.02%, 14.7%, and 0.12% in 1985 to 61.97%, 8.67%, 1.01%, 3.32%, 25.91%, and 0.13% in 2020, respectively. The southwestern research area witnessed farmland substantially give way to land for construction for this period, and the most dramatic change in land use occurred between 2000 and 2010. (2) The area of dominant patches in the research area shrank, along with more fragmented, complex landscapes. The land for construction was emerging as the dominant landscape by area, whereas patches of farmland, forest, grassland, and water areas became less connected. (3) The ecological network was densely linked in the northeast, with sparser connections in the southwest. Spatial shrinkage was observed in the research area’s southwestern and central ecological corridors. Overall, the number of ecological sources and corridors rose and subsequently dropped before a rebound. (4) The ecological network grew more connected and robust from 1985 through 1990, as portions of farmland were converted into water areas, which led to an increase in ecological sources. Given a reduction in ecological sources and corridors in the southwestern and central regions between 1990 and 2010, network connectivity and robustness declined, which was reversed from 2010 onward with the addition of two ecological sources – Pan’an Lake and Dugong Lake. With an optimal ecological network in 1990, though, the research area saw the minimum value of its network connectivity indices of network stability index (α), evenness index (β), and connectivity index (γ) at 0.806, 2.333, and 0.875, respectively, in 2010, when its ecological network was highly fragmented and vulnerable, attributing to a strong contrast between the maximal connected subgraph’s relative size and connectivity robustness. The research findings can lay scientific groundwork for addressing ecological issues, restoring landscape patterns, and developing ecological networks amid urbanization.

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“…Whether the ecological security pattern is reasonable or not based on ecological sources and building resistance surfaces. After years of continuous exploration by domestic and foreign researchers, in the pattern of ecological security, the identification of ecological source areas is mainly divided into the qualitative selection of natural places with better habitat quality and more suitable landscape, such as nature reserves and scenic spots, and the construction of comprehensive evaluation system, combined with the quantitative selection of ecological service value [9][10][11]. However, in the selecting process of traditional ecological source areas, the results are highly subjective, and the selection of indicators and the setting of weights vary from region to region, which is less adaptable.…”

Section: Introductionmentioning

confidence: 99%

Construction and Analysis of Ecological Security Pattern of Qingdao Based on MSPA and MCR Models

Liu¹,

Sun²,

Mei³

et al. 2022

Pol. J. Environ. Stud.

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Building an ecological security pattern is an important way to relieve ecological pressure and promote the harmonious development of human and ecosystem in the context of rapid urbanization. The article takes Qingdao, Shandong Province as the study area, and firstly identifies ecological sources by the Morphological Spatial Pattern Analysis (MSPA) method combined with the ecological red line of Qingdao City. Secondly, the potential ecological corridors are identified based on the Minimum Cumulative Resistance model (MCR) method, and the potential corridors are classified by gravity model. According to the research paradigm of "point-line-area", the ecological security pattern of "Four Zones, One Axis and One Belt" in Qingdao is constructed. The results show that the ecological security pattern of Qingdao consists of 22 ecological source areas, 128 ecological corridors and 16 stepping stones, with a total area of ecological source areas is 753.28 km 2 , mainly forest land and water, showing a spatial distribution pattern of "clustering from north to South and East and connecting in the middle"; the overall ecological network is well connected, but the spatial span between the north and south ecological source areas is large, and the construction cost of the ecological network is high; forest land and water are the main landscape types of the ecological corridor, and forest land has the largest area, accounting for 34.02% of the total area of the ecological corridor; in addition, arable land, as the main land for living and production, is seriously disturbed by man, accounting for 27.30% of the total area of the ecological corridor. Therefore, we should strengthen the ecological corridor protection and avoid excessive human interference with ecological sources, ecological corridors and stepping stones. As an important ecological barrier along the southeast coast of Shandong Peninsula, Qingdao takes its whole elements of ecological land as the life community, fully considers the ecological functions of ecological source areas and the spatial structure of ecological networks, and constructs the

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Developing Ecological Networks based on MSPA and Least-cost Path Method in Bazhong western new district

Cited by 22 publications

References 0 publications

Does the Construction of a Power Transmission Line (PTL) in a Coastal Mountainous Area Affect the Regional Ecological Security?—Taking Fujian Tangyuan PTL as an Example

Does the Construction of a Power Transmission Line (PTL) in a Coastal Mountainous Area Affect the Regional Ecological Security?—Taking Fujian Tangyuan PTL as an Example

Analysis of the Features of Spatiotemporal Changes in the Land-Use Landscape Pattern and Ecological Network of Xuzhou Planning Area

Construction and Analysis of Ecological Security Pattern of Qingdao Based on MSPA and MCR Models

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