首页 | 本学科首页   官方微博 | 高级检索  
   检索      

崇明东滩湿地高等植被演替特征
引用本文:闫芊,陆健健,何文珊.崇明东滩湿地高等植被演替特征[J].应用生态学报,2007,18(5):1097-1101.
作者姓名:闫芊  陆健健  何文珊
作者单位:1. 华东师范大学河口海岸学国家重点实验室,上海,200062;长江流域水资源保护局上海局,上海,200120
2. 华东师范大学河口海岸学国家重点实验室,上海,200062
基金项目:国家重点基础研究发展计划(973计划);国家自然科学基金;上海市科技攻关项目
摘    要:研究了崇明东滩湿地植被演替过程中生态特征以及重要值、地上部分生物量、植被地上部分氮含量以及氮容量的季节性变化.结果表明:随着高程的升高,演替早期的代表物种海三棱藨草(Scirpus mariqueter)的重要值逐渐减小,互花米草(Spartina alterniflora)和芦苇(Phragmites australis)的重要值增大.演替过程中植物的生物多样性逐渐增加.3种植物地上部分生物量在生长季节内(3—10月)均呈单峰变化,一般在夏季(7、8月)生物量最大.3种植物地上部分氮含量在生长季节内均呈降低趋势,氮容量在生长季节内呈单峰变化.估算每年崇明东滩保护区内芦苇地上部分蓄积的氮为383.4 t,互花米草为39.3 t,海三棱藨草为50.5 t.

关 键 词:潮滩湿地  演替  生态特征  含氮量  生物量
文章编号:1001-9332(2007)05-1097-05
收稿时间:2006-3-29
修稿时间:2006-03-292007-02-28

Succession character of salt marsh vegetations in Chongming Dongtan etland.
YAN Qian,LU Jian-jian,HE Wen-shan.Succession character of salt marsh vegetations in Chongming Dongtan etland.[J].Chinese Journal of Applied Ecology,2007,18(5):1097-1101.
Authors:YAN Qian  LU Jian-jian  HE Wen-shan
Institution:1.State Key Laboratoty of Estuarine and Coastal Research, East China Normal University, Shanghai 200062, China; 2.Shanghai Branch of Yangtze River Water Resource Protection Bureau, Shanghai 200120, China
Abstract:This paper studied the ecological character,importance value,aboveground biomass and its N content of salt marsh vegetations in Chongming Dongtan wetland in the process of succession.The results indicated that with the increase of altitude,the importance value of Scirpus mariqueter,a representative species at early succession stage,decreased gradually,while those of Spartina alterniflora and Phragmites australis increased.The biodiversity of the vegetations increased with succession.During growth period(from March to October),the aboveground biomass of the three species varied in single hump curve,with the peak in July and August.The N content had a decreasing trend,while the N capacity showed a single-peak curve.The estimated annual N accumulation in aboveground biomass was 383.4 t for P.australis,50.5 t for S.mariqueter,and 39.3 t for S.alterniflora.
Keywords:tidal beach wetland  succession  ecological character  nitrogen content  biomass  
本文献已被 CNKI 维普 万方数据 等数据库收录!
点击此处可从《应用生态学报》浏览原始摘要信息
点击此处可从《应用生态学报》下载免费的PDF全文
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号