Variations in leaf litter decomposition explain invasion success of Broussonetia papyrifera over confamilial non-invasive Morus alba in urban habitats

《Variations in leaf litter decomposition explain invasion success of Broussonetia papyrifera over confamilial non-invasive Morus alba in urban habitats》

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作者: Ikramjeet Maan;Amarpreet Kaur;Aditi Sharma;Harminder Pal Singh;Daizy R. Batish;Ravinder Kumar Kohli;Naresh Kumar Arora

来源: URBAN FORESTRY & URBAN GREENING,Vol.67,Issue1,Article 127408

语言: 英文

关键字: Litter decay rate;Moraceae;Nutrient cycling;Paper mulberry;White mulberry;Woody plant invasion

作者单位: Original article"}]},{"#name":"title","$":{"id":"tit0005"},"$$":[{"#name":"__text__","_":"Variations in leaf litter decomposition explain invasion success of;Department of Environment Studies, Panjab University, Chandigarh, 160 014, India;Department of Botany, Panjab University, Chandigarh, 160 014, India;Division of Soil and Crop Management, ICAR-Central Soil Salinity Research Institute, Karnal, 132 001, India;Department of Environment Studies, Panjab University, Chandigarh, 160 014, India;Department of Botany, Panjab University, Chandigarh, 160 014, India;Division of Soil and Crop Management, ICAR-Central Soil Salinity Research Institute, Karnal, 132 001, India

摘要: In urban environments, anthropogenic influences play an important role in determining the distribution of woody flora and consequently, the propagation of woody invaders. Land-use changes and disturbances associated with urbanization may intensify different invasive aspects of a species. Studying the extent by which invasive species vary from non-invasive species can strengthen our understanding of urban invasions. In this study, we compared leaf litter decomposition between two confamilial exotics, an invasive Broussonetia papyrifera, and a non-invasive Morus alba (both belonging to family Moraceae), growing in urban habitats. Senescent leaves of both the species and soil were collected from five study sites in Chandigarh, India. Litterbags filled with 10 g leaves each were placed in pots containing the soil collected from respective study sites. Mass remaining, decomposition constant, and soil elemental composition were determined after periodic harvesting of the pots. Decomposition was completed within 180 days in B. papyrifera and 330 days in M. alba. Initially, the decomposition rate was low in B. papyrifera; however, a rapid degradation occurred after 90 days. Species, time, and their interaction significantly affected most of the elements in soil, whereas the effect of habitat was not significant. The faster decomposition rate in B. papyrifera may result in greater turnover of nutrients over a shorter time span, thereby, favoring its colonization in the invaded regions. The difference in litter decomposition process explains the invasion success of B. papyrifera over its confamilial species, M. alba, in urban habitats.