应用生态学报2017，Vol.28Issue(5)：1533-1540,8.DOI:10.13287/j.1001-9332.201705.003
胶州湾互花米草湿地氮、磷元素的垂直分布及季节变化
Vertical distribution and seasonal variation of nitrogen, phosphorus elements in Spartina alterniflora wetland of Jiaozhou Bay, Shandong, China
摘要
Abstract
In order to study the vertical distribution and the seasonal variation of N and P in Spartina alterniflora wetland of Jiaozhou Bay,soil samples in S.alterniflora wetland and bare fiat in April,July,September,October,November and December 2015 were collected,and TN,NH4 +-N,TP,AP,TOC,pH,salinity and water content were tested.The average values of soil TN,NH4+-N,TP and AP contents in S.alterniflora wetland were 0.396 g · kg-1,12.14 mg · kg-1,0.385 g · kg-1 and 16.52 mg· kg-1 respectively,while those in bare flat were 0.419 g · kg-1,8.13 mg· kg-1,0.423 g · kg-1 and 19.57 mg · kg-1 respectively.Generally,they decreased gradually with the increase of the soil depth (0-60 cm).The contents of N and P in S.alterniflora wetland had obvious variations with season.The maximum and minimum of soil TN contents in S.alterniflora wetland were in spring and autumn respectively,while the content of soil TN in bare flat decreased with the change of season.Compared with the bare flat,the content of TP in S.alterniflora wetland had the opposite trend with the change of season,while that of AP had the same trend.The contents of TN and TP were significantly positively related with TOC,while there was no significant correlation between them in the bare flat.N and P contents in S.alterniflora wetland and bare fiat were obviously influenced by pH and salinity.关键词
互花米草湿地/全氮/铵态氮/全磷/速效磷Key words
Spartina alterniflora wetland/TN/NH4+-N/TP/AP引用本文复制引用
苗萍,谢文霞,于德爽,陈剑磊,宫健..胶州湾互花米草湿地氮、磷元素的垂直分布及季节变化[J].应用生态学报,2017,28(5):1533-1540,8.基金项目
本文由国家自然科学基金项目(41406089)和青岛市民生计划项目(15-9-2-118-nsh)资助 This work was supported by the National Science Foundation of China (41406089),and the People's Livelihood Project of Qingdao City (15-9-2-118-nsh). （41406089）
