Effects of compositional and configurational heterogeneity of the urban matrix on the species richness of woody plants in urban remnant forest patches

Yang, Jingyi; Luo, Xiangyu; Lu, Siran; Yang, Yongchuan; Yang, Jun

doi:10.1007/s10980-021-01368-7

Cited by 16 publications

(10 citation statements)

References 67 publications

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“…The primary natural vegetation type in the region is subtropical evergreen forests. The dominant canopy species in natural forest stands are in the Fagaceae and Lauraceae families, while plants from Theaceae and Magnoliaceae families are also common [ 36 ]. The main vegetation types of artificial and secondary forest are evergreen broad-leaved, evergreen coniferous, and mixed coniferous and broad-leaved forests, and the main tree species are Pinus massoniana , Pinus armandii , Ligustrum lucidum , Cryptomeria japonica , Cunninghamia lanceolate , Cinnamomum longepaniculatum , and Betula alnoides , etc.…”

Section: Methodsmentioning

confidence: 99%

“…As this region has a unique geological setting and high landscape heterogeneity, the eco-environmental sensitivity is so high that once a strong artificial disturbance occurs, it is difficult to rehabilitate the environment and rebuild the ecosystem [ 33 , 34 ]. For example, in recent years, under the multiple influences of social economic development, the urbanization process has been accelerating, which has worsened the effects on the fragile environment and caused an intensification of landscape fragmentation, leading to the declined EH in urban expansion areas [ 35 , 36 , 37 ]. Meanwhile, ecological protection and restoration measures have been largely implemented, and the overall environmental quality has obviously improved [ 37 ].…”

Section: Introductionmentioning

confidence: 99%

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Response of Ecosystem Health to Land Use Changes and Landscape Patterns in the Karst Mountainous Regions of Southwest China

Wang

Liu

et al. 2022

IJERPH

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The quantitative assessment of ecosystem health is important for interpreting the ecological effects of land use changes and formulating effective measures of sustainable ecological development by policymakers. This study investigated the response of ecosystem health to land use changes and landscape patterns in the karst mountainous regions of southwest China by taking Guiyang City as a case study area and assessing the spatial and temporal changes in ecosystem health from 2008 to 2017 using the vigor–organization–resilience model; it analyzed the influence of land use changes and landscape patterns on ecosystem health using spatial overlay analysis, the Dunnett’s T3 test, and the Spearman correlation analysis. The results show that the land use structure dramatically changed, with a trend of a sharp decrement of farmland and rapid increment of forestland and construction land due to rapid urbanization and ecologization. The overall ecosystem health was at a relatively strong level, with the average value greater than 0.6. The deterioration of ecosystem health was attributed to the expansion of construction land and farmland and the degradation of forestland, while the increment of forestland was the major contributor to the improvement of ecosystem health. The ecosystem health of the forestland + farmland landscape was significantly superior to that of forestland + construction land and construction land + farmland landscapes. Moreover, each landscape configurations had a significant positive or negative correlation with the ecosystem health. This study provides a valuable reference for formulating sustainable environmental management strategies in karst mountainous regions in China.

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Section: Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Response of Ecosystem Health to Land Use Changes and Landscape Patterns in the Karst Mountainous Regions of Southwest China

Wang

Liu

et al. 2022

IJERPH

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“…The shape index equals the patch edge length (in meter) divided by the patch area (in square meter), multiplied by 0.25 to adjust to a square standard. Data on tree species information of woody plants and landscape metrics of 30 forest remnants in the metropolitan area of Guiyang were obtained from Yang et al (2020). More information about 30 remnants can be found in the supplementary material (Table S5).…”

Section: Methodsmentioning

confidence: 99%

“…More information about 30 remnants can be found in the supplementary material (Table S5). More details on the landscape metric calculation and selection process of sample patches can be found in Yang et al (2022). The trees were further divided into adult trees and sapling/seedlings with the threshold value of a diameter at breast height of 3 cm according to Fang et al (2009).…”

Section: Landscape Metrics and Tree Samplingmentioning

confidence: 99%

Impacts of the attributes of patches and the surrounding matrix on the phylogenetic diversity of tree species in urban remnant forests

Yang,

2024

Land Degrad Dev

Self Cite

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Urbanization is a major cause of biotic homogenization and evolutionary poverty. Urban remnant forests are biodiversity hotspots in cities but are prone to phylogenetic homogenization. However, how urbanization‐driven changes in patch attributes and landscape heterogeneity levels of the surrounding matrix affect plant phylogenetic diversity in urban remnant forests remains unclear. We quantified tree phylogenetic diversity and structure in 30 remnant forest patches in Guiyang, China, using chloroplast genome data and analyzed the effects of patch attributes and the surrounding matrix on tree phylogenetic diversity and structure in the forests while considering tree species stage. The phylogenetic diversity of saplings/seedlings was lower than that of adult trees. Small patches contributed more than large patches to the overall phylogenetic diversity of remnant forest ecosystems. Additionally, tree phylogenetic diversity was positively associated with configurational heterogeneity of the surrounding matrix, while phylogenetic diversity and relatedness were negatively related to the percentage of surrounding impervious surfaces and patch size. Accordingly, we suggest maintaining configurational heterogeneity and controlling the speed of urban expansion in the surrounding matrix to better conserve urban remnant forests. Furthermore, the preservation of small forest remnants and tree species in the sapling/seedling stage should be prioritized.

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“…Additionally, UGS needs to be increased through urban renewal to construct a multivariate functional green space system, develop a three-dimensional space implementation technical innovation such as roof and vertical greening to reduce the unevenness of the UGS configuration, and increase the vitality of UGS. Fragmented habitats lead to serious ecological problems; thus, protecting larger patches is important for protecting biological diversity (Miller et al, 2015;Yang et al, 2022). New developing areas play an important role in protecting large green patches.…”

Section: Applications For Green Space Planning At the Inner-city Levelmentioning

confidence: 99%

Multiscale spatiotemporal dynamics analysis of urban green space: Implications for green space planning in the rapid urbanizing Hefei City, China

Ren²,

Chen³

et al. 2022

Front. Ecol. Evol.

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Under the pressure of rapid urbanization, the spatiotemporal dynamics of urban green spaces (UGS) have enormous impacts on the local ecological system and environment at different scales. In this study, UGS in Hefei City, which has experienced rapid urbanization from 1995 to 2015, were extracted based on time-series Landsat-5 TM and Landsat-8 OLI images, and different types of parks were mapped based on GF-2 images combined with multi-source metadata. Dynamic patterns of green space were examined by drawing the spatial variations of green space at the city, inner city, and park scales. Results revealed that: (1) At the city level, UGS decreased with the rapid urbanization, especially farmland sharply lost in areas around existing urban areas and along the transportation corridors. (2) At the inner-city level, concentric analyses showed that UGS changes in different rings had unique trends, and the dynamic changes were the most significant in Rings 2 and 3. Comparative analysis of old and new districts showed that the common characteristics of UGS changes were the transfer-out of farmland and the transfer-in of built-up land, and the newer the region, the more intense the changes. (3) At the park level, the number and area of urban parks were increasing from the center to the periphery, and the type of park gradually changed from single to rich. Significant spatial heterogeneity was identified in the landscape patterns of urban parks based on fishnet cell analysis. It is fundamental to assign urban construction land for socio-economic development, while planning UGS at different scales; moreover, integrating different green space-related policies could protect the UGS and maintain its stability. Only in this way can UGS combine economic, social, and ecological benefits under the background of rapid urbanization.

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Effects of compositional and configurational heterogeneity of the urban matrix on the species richness of woody plants in urban remnant forest patches

Cited by 16 publications

References 67 publications

Response of Ecosystem Health to Land Use Changes and Landscape Patterns in the Karst Mountainous Regions of Southwest China

Response of Ecosystem Health to Land Use Changes and Landscape Patterns in the Karst Mountainous Regions of Southwest China

Impacts of the attributes of patches and the surrounding matrix on the phylogenetic diversity of tree species in urban remnant forests

Multiscale spatiotemporal dynamics analysis of urban green space: Implications for green space planning in the rapid urbanizing Hefei City, China

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