| 基于模糊评价法的洱海稳态阶段分析 |
| Application of Fuzzy Synthetic Evaluation on the regime shift phases of Lake Erhai |
| 投稿时间：2011-02-20 修订日期：2011-04-15 |
| DOI： |
| 中文关键词:模糊评价法 洱海 稳态转换 |
| 英文关键词:Fuzzy Synthetic Evaluation, Lake Erhai, Regime shift |
| 基金项目:国家水体污染控制与治理科技重大专项（２００８ＺＸ０７１０５ ００６，２００８ＺＸ０７１０２ ００５，２００９ＺＸ０７１０１ ０１１ ０３）；９７３计划课题（２００８ＣＢ４１８００２）。 |
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| 中文摘要: |
| 稳态转化理论被广泛应用于各种系统的变化,也常常用于描述水生和陆生生态系统状态发生本质、渐进和持续的转变过程。对淡水湖泊生态系统而言,研究其变化过程及驱动因子将有助于理解当前水环境问题的本质特征,为水环境整治与生态修复提供理论支撑。为了确定典型高原湖泊洱海所处的稳态阶段及其转换取向,在野外调查研究及文献资料数据分析的基础上,尝试用模糊评价法分析洱海所处的稳态转换阶段。评价结果表明,洱海1985-2001年处于清水稳态,2002年系统发生跃迁,2003年退化到藻草共存、草藻共存的过渡态。从2009-2010年洱海各阶段的隶属度来看,系统仍有可能转化为藻型浊水稳态,警示对洱海的保护和治理工作不可松懈。在缺乏水生物数据的条件下,模糊评价法可用于稳态转换评价。 |
| 英文摘要: |
| Regime shift is regarded as an important tool for ecosystem management，such as lake eutrophication control and ecological restoration. In this paper，the authors tried a new method-fuzzy synthetic evaluation(FSE) to determine phases of regime shift of Lake Erhai based on field investigations and historical data analysis. Results showed that Lake Erhai was in phase I -Unshiftable State of Macrophytes-Dominated Clear Water between 1985-2001.A transition happened in 2002，and the aquatic ecosystem shifted to alternate between Shiftable State of Macrophytes-Dominated Clear Water and Shiftable State of Algae-dominated Turbid Water. According to the membership grade of FSE，Lake Erhai is prone to the possibility of shift to Unshiftable State of Algae一Dominated TurbidWater，therefore，more timely and stronger environmental control and protection onto Lake Erhai is very important. The results indicate that there is a feasible way of combine the Fuzzy evaluation method with the regime shift analysis in lake management. |
| 汪贞,李根保,王高鸿,沈银武,刘永定.2011.基于模糊评价法的洱海稳态阶段分析[J].水生态学杂志,32(3):53-58. |
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