Submerged Macrophyte of Lake Erhai and Its Dynamic Change
Submerged Macrophyte of Lake Erhai and Its Dynamic Change
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发表时间：
2005
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通讯作者：
Hua Xiao-zhen
中科院分区：
文献类型：
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作者：
Hua Xiao-zhen
1998年4月对洱海沉水植物进行了野外调查。初步揭示了洱海沉水植物的优势种、群落类型及其分布，以及春季的生物量。根据相关历史数据，分析了沉水植物的动态变化特征。这些特征包括沉水植物种类减少、群落结构简化、优势种向耐污染种转变。全湖植物资源退化。最后讨论了影响洱海沉水植物动态变化的两个主要因素：富营养化和围网捕捞。
A field survey for submerged macrophyte of Lake Erhai was carried out in April 1998. The survey initially revealed the dominant species, the community types and their distribution, and the biomass in the spring of the submerged macrophyte of Lake Erhai. The dynamic change characteristics of submerged macrophyte were analyzed based on relevant historical data. These characteristics included decrease of submerged macrophyte species, simplification of community, changing of the dominant species to pollutant-resistant species of P. maackianus A. Benn. and deterioration of plant resources of the whole lake. Eutrophication and pen-fishing, as two main factors affecting the dynamic change of submerged macrophyte in Lake Erhai, were finally discussed.