Key Laboratory of Geospatial Technology for the Middle and Lower Yellow River Regions, College of Environment and Planning, Henan University, Jinming Road, Kaifeng 475004, China.
Key Laboratory of Geospatial Technology for the Middle and Lower Yellow River Regions, College of Environment and Planning, Henan University, Jinming Road, Kaifeng 475004, China.
Sci Total Environ. 2021 May 1;767:144867. doi: 10.1016/j.scitotenv.2020.144867. Epub 2020 Dec 31.
Determining the relationship between plant functional traits and the environment are key for the protection and sustainable utilization of riparian wetlands. In the middle and lower reaches of the Yellow River, riparian wetlands are divided into seasonal floodplain wetlands (natural) and pond-like wetlands or paddy fields (artificial). Here, species composition differences were catalogued based on plant functional traits including origin, life history, and wetland affinity in natural and artificial wetlands. Wetland physicochemical characteristics and regional socio-economic parameters collected as indicators of environmental variables were used to analyze the plant functional trait-environment relationship. The results reveal that plant functional traits in the seasonal floodplain wetland are impacted by physicochemical characteristics of habitat. The abundance of annual plants tends to decrease with concentration of heavy metals, while species diversity is mainly determined by soil physical and chemical properties, especially soil pH and temperature. Specifically, wetland-obligate species (not in water) are more resistant to heavy metal content in water than species with other types of wetland affinity. Life history strategies of species in artificial sites tend to be significantly associated with animal husbandry and artificial populations, while the wetland affinity of species is mainly determined by regional agriculture, especially the installation of agricultural covered areas. Furthermore, water quality and nutrients in suspended sediments from the Yellow River affected species diversity and life history strategies by affecting water and soil conditions of surrounding wetlands, especially conductivity and phosphorus levels.
确定植物功能性状与环境之间的关系是保护和可持续利用河岸湿地的关键。在黄河中下游，河岸湿地分为季节性洪泛湿地（自然）和池塘状湿地或稻田（人工）。在这里，根据植物功能性状（包括起源、生活史和湿地亲合性）对自然和人工湿地中的物种组成差异进行了编目。湿地理化特性和区域社会经济参数作为环境变量的指标被用来分析植物功能性状-环境关系。结果表明，季节性洪泛湿地的植物功能性状受生境理化特性的影响。一年生植物的丰度随着重金属浓度的增加而减少，而物种多样性主要由土壤物理化学性质决定，特别是土壤 pH 值和温度。具体来说，湿地专性物种（不在水中）比其他湿地亲合性的物种对水中重金属含量的耐受性更强。人工湿地中物种的生活史策略往往与畜牧业和人工种群密切相关，而物种的湿地亲合性主要取决于区域农业，特别是农业覆盖面积的安装。此外，黄河悬浮泥沙中的水质和养分通过影响周围湿地的水和土壤条件，特别是电导率和磷水平，影响物种多样性和生活史策略。
