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中国农学通报 ›› 2016, Vol. 32 ›› Issue (19): 115-119.doi: 10.11924/j.issn.1000-6850.casb15120131

• 资源 环境 生态 土壤 气象 • 上一篇    下一篇

黄河源区河漫滩湿地退化过程植被变化特征

林春英,李希来,金惠瑛,王黎俊,Jay Gao   

  1. 青海省人工影响天气办公室,青海大学农牧学院,青海省人工影响天气办公室,青海省人工影响天气办公室,新西兰奥克兰大学环境学院
  • 收稿日期:2015-12-23 修回日期:2016-01-26 接受日期:2016-02-25 出版日期:2016-07-15 发布日期:2016-07-15
  • 通讯作者: 李希来
  • 基金资助:
    教育部长江学者和创新团队发展计划“三江源生态演变与环境保护”(IRT13074);农业部公益性行业(农业)科研专项(201203041);青海省科学技术厅国际科技合作计划“三江源湿地类型与退化机制研究”(2013-H-801);青海大学中青年科研基金项目“三江源生态演变与环境保护”(2013-QNT-3)。

Vegetation evolutional characteristics of floodplain wetlands duringdegradation succession in the Yellow River Source Zone

  • Received:2015-12-23 Revised:2016-01-26 Accepted:2016-02-25 Online:2016-07-15 Published:2016-07-15

摘要: 笔者从黄河源区河漫滩湿地地理地形指标和植物群落指标出发,分析和研究黄河源区河漫滩湿地退化过程中植被变化特征。结果表明:从整个退化演替过程来看,在演替初期,黄河源区河漫滩湿地以藏嵩草为主,随着演替的进行,藏嵩草的重要值逐渐降低,杂草和毒草的重要值逐渐增加,并在河漫滩湿地中占有一定的位置,物种多样性增加,群落的结构趋向复杂,丰富度越来越大。

关键词: 武河湿地, 武河湿地, 水体富营养化, 氮,

Abstract: The authors analyzed vegetation change characteristics during degradation succession in floodplain wetlands of the Yellow River Source Zone by geography opography index and phytocoenosium index. The results showed that in terms of the entire degradation succession, floodplain wetland was dominated by Kobresia tibetica at the beginning of succession. With the process of succession, Kobresia tibetica gradually decreased, and weeds and poisonous weeds gradually increased, and played certain roles in floodplain wetland. Plant diversity increased, and plant community structure tended to be complex, species richness was higher and higher.

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