不同水盐生境下芦苇湿地植被及土壤碳氮磷生态化学计量特征

	不同水盐生境下芦苇湿地植被及土壤碳氮磷生态化学计量特征
其他题名	C: N: P stoichiometry in plants and soils of Phragmites australis wetland under different water-salt habitats
	卞福花 1; 吴秋堂 1,2; 吴梦迪 2,3; 管博2,4 ; 于君宝4 ; 韩广轩2
发表期刊	应用生态学报
ISSN	1001-9332
	2022
卷号	33 期号:2 页码:385-396
关键词	化学计量养分含量芦苇河流改道黄河三角洲
英文摘要	We examined the effects of channel diversion of Yellow River on the content and stoichiometry of carbon(C),nitrogen(N)and phosphorus(P)in the organs of reeds(stem,leaf,rhizome and fibrous root)and soils in three typical Phragmites australis communities in the Yellow River Delta,including P.australis community in the former Yellow River course abandoned in 1996,P.australis community on the new Yellow River course and the P. australis communities on the intertidal area(far from the abandoned and current channel but affected by the tides). The results showed that foliar C,N and P contents of P.australis were highest in the communities of abandoned Yellow River course.Leaf N,stem C and rhizome P contents were highest in the communities of new Yellow River course.Leaf N and stem C and P contents were highest in the communities of intertidal area.The average leaf C(409.48 g·kg~(-1) )and P(1.09 g·kg~(-1) )contents in the three habitats were lower than national and global average levels,while leaf N content(21.71 g·kg~(-1) )was higher than that of national and global average levels.The mean leaf N: P(20.22)was higher than 16 and the mean soil N: P(0.87)was lower than 14,indicating that the P.australis growth in the three habitats was limited by P.Correlation analysis showed that EC was one of the main factors affecting C: N: P stoichiometry in P.australis.In general,the C and P reserves in P.australis in the study area were low,and N reserve was high.The soil organic carbon content was low,the soil C reserves were large,while the N and P were relatively scarce.
中文摘要	在黄河三角洲选取3种典型的芦苇湿地群落为对象,即:故道区(1996年改道的黄河故道河岸带芦苇群落)、新生区(现行黄河河岸带新生芦苇群落)和潮水区(远离新旧河道但受潮汐影响的潮滩芦苇群落),研究黄河改道对3种生境芦苇各器官(茎、叶、根状茎、须根)和土壤剖面碳(C)、氮(N)、磷(P)含量变化及化学计量特征的影响。结果表明:故道区芦苇叶片C、N、P含量最高,新生区叶片N、茎C、根茎P含量最高,潮水区叶片N、茎C和P含量最高。3种生境芦苇叶片C含量(409.48 g·kg^(-1))和P含量(1.09 g·kg^(-1))低于全国和全球水平,而N含量(21.71 g·kg^(-1))高于全国和全球水平。叶片N∶P(20.22)高于16,土壤N∶P(0.87)低于14,表明3种生境下芦苇生长受P限制。相关性分析表明,电导率是影响芦苇C、N、P化学计量的主要因素之一。研究区芦苇体内C、P储量较低,N储量较高;土壤矿化分解较慢,有机碳可利用率低,C储备量较大,而N、P相对匮乏。
文章类型	期刊论文
收录类别	CSCD
语种	中文
CSCD记录号	CSCD:7150824
引用统计
文献类型	期刊论文
条目标识符	http://ir.yic.ac.cn/handle/133337/34257
专题	中国科学院海岸带环境过程与生态修复重点实验室中国科学院海岸带环境过程与生态修复重点实验室_海岸带环境过程实验室
作者单位	1.烟台大学生命科学学院,山东烟台264005; 2.中国科学院烟台海岸带研究所中国科学院海岸带环境过程与生态修复重点实验室/山东省海岸带环境过程重点实验室,山东烟台264003; 3.烟台大学环境材料与工程学院,山东烟台264005; 4.鲁东大学滨海生态高等研究院/山东省高等学校滨海湿地生态修复与保育重点实验室,山东烟台264025
推荐引用方式 GB/T 7714	卞福花,吴秋堂,吴梦迪,等. 不同水盐生境下芦苇湿地植被及土壤碳氮磷生态化学计量特征[J]. 应用生态学报,2022,33(2):385-396.
APA	卞福花,吴秋堂,吴梦迪,管博,于君宝,&韩广轩.(2022).不同水盐生境下芦苇湿地植被及土壤碳氮磷生态化学计量特征.应用生态学报,33(2),385-396.
MLA	卞福花,et al."不同水盐生境下芦苇湿地植被及土壤碳氮磷生态化学计量特征".应用生态学报 33.2(2022):385-396.