Patch three-dimensional effect for plant species diversity of urban remnant mountain in multi-mountain city

作者：Mulin Zeng, Yu Bao, Zhitai Wang, Zongsheng Huang, Xintong Chen, Wenfei Wei, Xun Lin, Qin Li · 发表于：Ecological Indicators · 年份：2022 · DOI：10.1016/j.ecolind.2022.108996 · 被引用次数：17 · 研究领域：Land Use and Ecosystem Services、Ecology and Vegetation Dynamics Studies、Plant Ecology and Soil Science

In some karst mountainous areas, with the urban expansion driven by rapid urbanization, a large number of natural mountains that were not suitable for development and construction were embedded into the urban built environment, forming urban remnant mountains(URMs). In this study, we conducted a indicator system to explore the relationship between morphological characteristics of URM and its plant species diversity. The results showed that: (i) The two boundary plane morphological indicators of URMs were significantly associated with its plant species α and β diversity; among the overall morphological indicators, mountain form factor (MFF) was significantly associated with plant species α and β diversity, mountain size coefficient (MSC) was negatively related to Margalef (R) index, and mountain volume density (MVD) had no significant relationship with plant diversity. Additionally, surface morphological indicators were significantly negatively correlated with the Pielou (Jgi) index, and positively correlated with Jaccard (Cj) and Sorenson (Cs) indices. (ii) There were also differences in the influence of morphological characteristic indicators of URMs on the plant species diversity of its different slope position and slope direction. Mountain shape index (MSI), mountain fractal dimension (MFD) and MFF had significant influence on plant species α and β diversity indices of different slope position and slope direction; All surface indicators of URMs morphological characteristic...