摘要
为揭示湿地土壤全硫和有效硫的分布特征对淹水频率差异的响应,对闽江河口湿地近潮沟区域不同淹水频率的藨草(Scirpus triqueter)湿地、短叶茳芏(Cyperus malaccensis)湿地和芦苇(Phragmites australis)湿地以及远潮沟区域的短叶茳芏湿地和芦苇湿地土壤的全硫和有效硫进行测定与分析。研究结果表明:(1)闽江河口湿地土壤全硫和有效硫分别为399.00～3 510.33 mg/kg和4.51～230.55 mg/kg,平均值分别为1 613.20 mg/kg和52.20 mg/kg;(2)近潮沟区域湿地土壤全硫和有效硫均表现出随淹水频率的增加先增大后减小,但远近潮沟区域的同种植物类型湿地间则表现为随淹水频率的增加而增大;(3)盐度是影响闽江河口不同淹水频率下湿地土壤全硫和有效硫变化的最重要的因子;(4)湿地土壤硫储量随淹水频率的增加而增大。
To clarify the responses of soil total sulfur and available sulfur distribution in wetland to water-flooded frequency,the characteristics of total sulfur and available sulfur of soil in Scirpus triqueter,Cyperus malaccensis,Phragmites australis wetland in near tidal ditch area and Cyperus malaccensis,Phragmites australis wetland far from tidal ditch area were analyzed.The results showed： Total sulfur and available sulfur were 399.00～3 510.33 mg/kg,4.51～230.55 mg/kg and averaged values were 1 613.20 mg/kg,52.20 mg/kg.Averaged values of total sulfur and available sulfur were increment and then decrement as the water-flooded frequency increment of near tidal ditch area,but increment as the water-flooded frequency increment for the same plant wetland between near and far tidal ditch areas.Salinity was the most important factor influencing soil total sulfur and available sulfur of different water-flooded frequency in Minjiang River estuary.Soil sulfur storage was increment as the water-flooded frequency increment.
出处
《水土保持学报》
CSCD
北大核心
2010年第6期246-250,共5页
Journal of Soil and Water Conservation
基金
国家自然科学基金项目(40671174)
福建省科技计划重点项目(2009R10039-1)
福建省教育厅资助项目(JA08051,JB09042)
关键词
全硫
有效硫
淹水频率
闽江河口
total sulfur
available sulfur
water-flooded frequency
Minjiang River estuary
