胶州湾互花米草湿地氮、磷元素的垂直分布及季节变化

发布时间：2018-05-26 17:38

本文选题：互花米草湿地 + 全氮　；参考：《应用生态学报》2017年05期

【摘要】：为了研究胶州湾互花米草湿地N、P的垂直分布及季节变化特征,分别于2015年4、7、9、10、11和12月对该区域互花米草湿地和光滩土壤全氮(TN)、铵态氮(NH_4~+-N)、全磷(TP)、速效磷(AP)、总有机碳(TOC),以及pH、盐度、含水量进行了测定.结果表明:胶州湾互花米草湿地土壤TN、NH_4~+-N、TP、AP含量平均值分别为0.396 g·kg~(-1)、12.14mg·kg~(-1)、0.419 g·kg~(-1)、16.52mg·kg~(-1),光滩平均值分别为0.385 g·kg~(-1)、8.13mg·kg~(-1)、0.423g·kg~(-1)、19.57 mg·kg~(-1).总体来说,它们的含量随着土壤深度(0~60 cm)的增加逐渐降低;互花米草湿地N、P含量的季节变化明显,互花米草湿地土壤全氮含量在春季最高,秋季最低,而光滩土壤随着季节变化逐渐降低;二者土壤全磷含量的季节变化趋势相反,而速效磷含量的季节变化趋势一致;胶州湾互花米草湿地土壤TN、TP与土壤TOC含量呈显著相关,而在光滩土壤中无显著相关关系.pH、盐度显著影响互花米草湿地和光滩土壤N、P含量.
[Abstract]:In order to study the vertical distribution and seasonal variation of N P in Spartina alterniflora wetland in Jiaozhou Bay, the total nitrogen (TNN), ammonium nitrogen (NH _ 4 ~ -N), total phosphorus (TP), available phosphorus (APP), total organic carbon (TOC), pH, salinity, total organic carbon (TOC), total organic carbon (TOC), The water content was measured. The results showed that the average content of TNN NH _ 4 ~ -N ~ + -TPAP in soil of Spartina alterniflora wetland in Jiaozhou Bay was 0.396 g 路kg ~ (-1) 路kg ~ (-1) ~ (-1) 路kg ~ (-1) 路kg ~ (-1) ~ (-1)? As a whole, their contents decreased with the increase of soil depth (0 ~ 60 cm), the seasonal variation of N content in Spartina alterniflora wetland was obvious, the total nitrogen content of Spartina alterniflora wetland was the highest in spring and the lowest in autumn. The seasonal variation trend of total phosphorus content was opposite, while the seasonal change trend of available phosphorus content was the same, and the TOC content of Spartina alterniflora wetland in Jiaozhou Bay was significantly correlated with the soil TOC content. However, there was no significant correlation between pH and pH, and salinity significantly affected the content of N ~ (+) P in Spartina alterniflora wetland and smooth beach soil.
【作者单位】：青岛大学环境科学与工程学院;
【基金】：国家自然科学基金项目(41406089) 青岛市民生计划项目(15-9-2-118-nsh)资助~~
【分类号】：S153

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