长江流域资源与环境 >> 2009, Vol. 18 >> Issue (9): 802-.

• 自然资源 • 上一篇    下一篇

人工重建的水生植物群落演替动态研究

王文林1| 唐晓燕1| 胡孟春1| 王国祥2   

  1. (1.环境保护部南京环境科学研究所|江苏 南京 210042; 2.南京师范大学地理科学学院江苏省环境演变与生态建设重点实验室|江苏 南京 210046)
  • 出版日期:2009-09-20

ON DYNAMICS IN THE SUCCESSION OF ARTIFICIAL AQUATIC MACROPHYTE COMMUNITY RECONSTRUCTION

WANG Wenlin1, TANG Xiaoyan1, HU Mengchun1, WANG Guoxiang2   

  1. (1.Nanjing Institute of |Environmental Sciences,Ministry of Environmental Protection, Nanjing 210042, China; |2.Jiangsu Key Laboratory of Environmental Change and Ecological Construction,College of Geographical Science,Nanjing Normal University, Nanjing 210097, China)
  • Online:2009-09-20

摘要:

水生植物群落在湖泊生态修复过程中作用显著,但目前人工重建的水生植物群落抗外界干扰能力弱,群落稳定性差,这就需要我们对人工重建的水生植物群落结构及其演替的生态学过程进行研究,从而探索受损群落的修复途径。于2003年在富营养化水体中采用物理生态工程进行了水生植物群落的重建研究,对群落演替动态变化过程进行了持续3年的观测。结果表明:水生植物之间发生生态位重叠时,其结果往往是以一个物种取代另一个物种,随着生态位重叠程度下降,种间关系和群落结构趋于稳定;而当物种空间位置错开时,生长期相近的物种共存则变为可能,因此在群落的构建过程中应当避免同时引入生态位重叠较高的物种,应注意植物间时间序列及空间结构的分离;此外还通过物种间的竞争表现,对几种常见水生植物构建的群落稳定性做了初步探讨.

关键词: 水生植物群落/ 演替动态研究/ 生态位

Abstract:

Aquatic macrophyte community plays a very important role in the ecological restoration of lake,while,artificial aquatic macrophyte community is prone to the environmental disturbance and its stability was poor.So,it is important to study the structure and dynamics in the ecological succession of aquatic macrophyte community in order to establish restoration approaches for degraded vegetation communities.In 2003,the rehabilitation of aquatic macrophyte community was studied with physical and ecological engineering in the etrophic lake.The dynamics in the succession of aquatic macrophyte community had been investigated in the past three years.The result showed:only the aquatic macrophyte with wide niche could be introduced into eutrophic water as pioneer plant because of the water characteristic of high pollution and low transparency,as a result,the competition of species became intense so that one species was replaced by another species with their niche overlapping.The enclosure was dominated by one species during the same period.With the decline of niche overlapping,species niche was divided by the competition of species,interspecific relationship and community structure tended to be stable.However,it was possible that the species with similar growth period coexisted if the spatial location of species was separated.So the introduction of aquatic macrophytes with similar niche should be avoided.We should pay attention to the separation of seasonal and special structure of aquatic macrophytes.In addition,the stability of these common aquatic macrophyte communities was discussed by the competition of these species.However,the stability of community was influenced by multiple factors such as algae population,zooplankton population,macrobenthic population,fish population,microorganism population and sediment environment.These factors should be deeply studied in future.

Key words: aquatic macrophyte community/dynamics in the succession;/niche

No related articles found!
Viewed
Full text


Abstract

Cited

  Shared   
  Discussed   
[1] 李 娜,许有鹏, 陈 爽. 苏州城市化进程对降雨特征影响分析[J]. 长江流域资源与环境, 2006, 15(3): 335 -339 .
[2] 张 政, 付融冰| 杨海真, 顾国维. 水量衡算条件下人工湿地对有机物的去除[J]. 长江流域资源与环境, 2007, 16(3): 363 .
[3] 孙维侠, 赵永存, 黄 标, 廖菁菁, 王志刚, 王洪杰. 长三角典型地区土壤环境中Se的空间变异特征及其与人类健康的关系[J]. 长江流域资源与环境, 2008, 17(1): 113 .
[4] 许素芳,周寅康. 开发区土地利用的可持续性评价及实践研究——以芜湖经济技术开发区为例[J]. 长江流域资源与环境, 2006, 15(4): 453 -457 .
[5] 郝汉舟, 靳孟贵, 曹李靖, 谢先军. 模糊数学在水质综合评价中的应用[J]. 长江流域资源与环境, 2006, 15(Sup1): 83 -87 .
[6] 刘耀彬, 李仁东. 现阶段湖北省经济发展的地域差异分析[J]. 长江流域资源与环境, 2004, 13(1): 12 -17 .
[7] 陈永柏,. 三峡工程对长江流域可持续发展的影响[J]. 长江流域资源与环境, 2004, 13(2): 109 -113 .
[8] 时连强,李九发,应 铭,左书华,徐海根. 长江口没冒沙演变过程及其对水库工程的响应[J]. 长江流域资源与环境, 2006, 15(4): 458 -464 .
[9] 翁君山,段 宁| 张 颖. 嘉兴双桥农场大气颗粒物的物理化学特征[J]. 长江流域资源与环境, 2008, 17(1): 129 .
[10] 王书国,段学军,姚士谋. 长江三角洲地区人口空间演变特征及动力机制[J]. 长江流域资源与环境, 2007, 16(4): 405 .