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Characteristics and Influencing Factors of Landscape Pattern Gradient Transformation of Small-Scale Agroforestry Patches in Mountain Cities

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  • Canhui Cheng

    (College of Architecture and Urban Planning, Chongqing University, Chongqing 400044, China)

  • Zhong Xing

    (College of Architecture and Urban Planning, Chongqing University, Chongqing 400044, China)

  • Lin Ye

    (College of Architecture and Urban Planning, Chongqing University, Chongqing 400044, China)

  • Junyue Yang

    (College of Architecture and Urban Planning, Guizhou University, Guiyang 550025, China)

  • Zhuoming Xie

    (College of Architecture and Urban Planning, Chongqing University, Chongqing 400044, China)

Abstract

Small-scale agroforestry patches possess irreplaceable value compared to large-scale patches. In southwestern mountainous cities of China, the complex terrain and urbanization have led to the presence of numerous small, fragmented agroforestry patches around urban areas. These patches serve as crucial habitats for endemic species and provide essential space for wild food sources, thereby contributing to a range of ecosystem services. Consequently, their proper conservation and utilization planning are of paramount importance. This study investigates the transformation characteristics of landscape patterns of mountainous small-scale agroforestry patches and their constituent elements across urban–rural gradients, identifying the driving factors behind these transformations to support conservation and utilization planning. From an urban–rural gradient perspective, four directional transects were selected and divided into uniform sample grids. Using Fragstats 4.3, landscape indices of small-scale agroforestry patches were calculated, analyzing the transformation characteristics of these patches and their elements across different gradients. Spearman correlation coefficients in SPSS were employed to assess the influence of terrain and relevant anthropogenic factors on the transformation of agroforestry patches. The findings reveal the following: (1) Small-scale agroforestry patches and their elements exhibit similar patterns in terms of size, fragmentation, dispersion, and connectivity, showing an “increasing trend in size and connectivity, decreasing fragmentation, and fluctuating dispersion” from urban centers to natural areas, with slight variations in orchard patches. However, patch cohesion and shape complexity display nonlinear differentiated transformation characteristics. (2) Overall, small-scale agroforestry patches are significantly influenced by anthropogenic construction factors, with the landscape pattern of forest patches notably affected by terrain factors. (3) Across urban–rural gradient zones, the landscape patterns of small-scale agroforestry patches in urban centers, suburbs, and rural natural areas are more affected by terrain factors, whereas those in urban construction zones are significantly influenced by anthropogenic construction factors. The findings of this study provide a scientific basis for the conservation and planning of mountainous small-scale agroforestry patches.

Suggested Citation

  • Canhui Cheng & Zhong Xing & Lin Ye & Junyue Yang & Zhuoming Xie, 2024. "Characteristics and Influencing Factors of Landscape Pattern Gradient Transformation of Small-Scale Agroforestry Patches in Mountain Cities," Sustainability, MDPI, vol. 16(15), pages 1-26, July.
    • Handle: RePEc:gam:jsusta:v:16:y:2024:i:15:p:6322-:d:1441649
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    References listed on IDEAS

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    1. Giovanni Sanesi & Giuseppe Colangelo & Raffaele Lafortezza & Enrico Calvo & Clive Davies, 2017. "Urban green infrastructure and urban forests: a case study of the Metropolitan Area of Milan," Landscape Research, Taylor & Francis Journals, vol. 42(2), pages 164-175, February.
    2. Miza Moreau, 2021. "Transect urbanism: readings in human ecology," Urban Research & Practice, Taylor & Francis Journals, vol. 14(4), pages 483-484, August.
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