Data for journal manuscript: Trait-based adaptability of Phragmites australis to the effects of soil water and salinity in the Yellow River Delta

Phragmites australis is the dominant species in the Yellow River Delta and plays an important role in wetland ecosystems. Ecological responses of the P. australis community to soil properties were investigated in 96 areas along the coastal-inland regions in the Yellow River Delta of China. The aim was to evaluate the relationship between phenotypic variation and environmental factors, reveal which functional traits could well respond to changes in electrical conductivity and soil water content, and the ecological strategies of P. australis. Within the range of soil water content (9.39–36.92%) and electrical conductivity (0.14–13.29 ms/cm), the results showed that the effects of soil water content and salinity were not equally important for the characterization of the morphological and physiological variability, and that plant functional traits including leaf traits and stem traits responded more strongly to soil salinity than soil water content. Our results suggested that salinity leads...芦苇（Phragmites australis）是中国黄河三角洲（Yellow River Delta）的优势物种，在湿地生态系统中发挥着关键生态功能。本研究针对中国黄河三角洲沿海-内陆梯度带内的96个样地，开展了芦苇群落对土壤特性的生态响应调查。本研究旨在解析表型变异（phenotypic variation）与环境因子间的关联，明确哪些功能性状（functional traits）可有效响应电导率（electrical conductivity）与土壤含水量（soil water content）的变化，并揭示芦苇的生态适应策略。在土壤含水量为9.39%~36.92%、电导率为0.14~13.29 ms/cm的试验范围内，研究结果显示：土壤含水量与盐度（salinity）对群落形态变异（morphological variability）及生理变异（physiological variability）的调控权重并不均等；包括叶片性状与茎秆性状在内的植物功能性状，对土壤盐度的响应强度显著高于对土壤含水量的响应。本研究结果表明，盐度可导致……