<span style="background: white;">Planting Patterns Affect the Differences in Growth and Its Responses to Nitrogen Forms and Levels Between Three Invasive and Their Respective Related Native Species<span style="color: windowtext; mso-color-alt: windowtext; background: white;">

• DOI: 10.20944/preprints202504.1738.v1
• Publication Date: 2025-04-24T02:40:27Z
• Authors: Feng Wei; Huang Kai; Sun Miao; Sun Kun; Guan Ming; Qi Zhao; Liu Chao; Qu Bo; Feng Long
• Keywords: Affect; White (mutation)

Global change such as atmospheric nitrogen (N) deposition can facilitate alien plant invasions, which is often attributed to the increase in soil N availability. However, few studies have considered effects of global change-driven alterations forms, especially under conditions with interspecific competition. In this study, we first determined differences growth, biomass allocation, and photosynthesis different forms levels between three noxious invasive species their respective related natives grown without competition, then assessed difference form preference using 15N labeling technique. Interspecific competition significantly decreased positive responses growth addition for all natives, while increased invaders, particularly nitrate addition. When invaders showed significant advantages over most cases; responded more positively relative ammonium N, ammonium-N These findings indicate that prefer nitrate, ammonium. Consistently, are pronounced addition, indicating nitrate-rich habitats may be vulnerable invaders. monoculture, however, advantage became smaller or even disappeared; disappeared Siegesbeckia glabrescens (native) Bidens frondosa (invasive). Interestingly, native Xanthium sibiricum higher total than its congener both mixed monoculture. Our experiment six preferred ammonium, although not two (S. X. sibiricum), completely consistent results from our experiment. shift invasions. Planting patterns affect levels, mixed-culture experiments providing better insights into invasiveness species.