Impact of Native Mangrove Allelopathy on Soil Microbial Communities, Nutrient Composition, and Photosynthetic Characteristics of Spartina alterniflora
The allelopathic effects of native mangrove plants offer an efficient, economical, and safe method for controlling the invasive species Spartina alterniflora. However, the impact of allelopathic effects from mangrove plants on soil microbial communities and plant physiology remains unclear. This study investigated the effects of allelopathic extracts from three native mangrove species (Kandelia candel, Avicennia marina, and Rhizophora stylosa) at different concentrations on the soil bacterial community, soil properties, and photosynthetic characteristics of Spartina alterniflora, and analyzed their interrelationships. Results indicate that the extracts from these mangrove plants significantly reduced soil microbial abundance, diversity, and evenness.