【作者】 李英杰；

【导师】 胡社荣； 金相灿；

【作者基本信息】 中国矿业大学（北京） ， 环境工程， 2008， 博士

【摘要】 过去20多年的恢复实践显示,恢复浅水湖泊清水状态是一个世界性难题。在深入调研国内、外文献资料的基础上,提出了治理湖泊富营养化问题必须治本的观点,生态恢复是其核心内容。论文依托滇池“863”生态恢复示范工程,通过室内模拟、野外调查和工程实践研究了浅水湖泊的生态类型及如何进行浅水湖泊生态恢复。通过研究,得出了如下结论:(1)成功设计并实施了不同生态类型湖泊的模拟实验,揭示出实验条件下水生植物生长与湖水、间隙水、沉积物营养盐浓度之间的复杂关系与变化规律;(2)研究了不同生态类型湖泊的生态特征差异;分析了草型、藻型湖区的生态特征差异及其指标体系;(3)提出了浅水湖泊五大阶段的生态演替模式,并划分出浅水湖泊的八大生态类型;(4)提出了一整套浅水湖泊生态恢复的技术路线,取得了清洁湖泥吹填技术恢复浅水湖泊直立陡岸带的初步成功。本文的研究结果,对于浅水湖泊的生态恢复具有一定的指导意义。更多还原

【Abstract】 In the past 20 years, lake ecological restoration practices all over the world show that it is notoriously difficult to restore clear water state with abundant submerged plants. Based on analysing abundant literature data, the thesis points that lake eutrophication needs a permanent cure, and ecological restoration is its core of this problem. Relying on National Dianchi“863”program, the thesis studies shallow lake ecotypes and how to restore shallow lakes through simulation experiment, project practice and field investigation. Through this reaseach, some conclusions and cognition are drawn as follows: (1) Simulation experiment is designed and carried out successfully, discovering mutuality and variation rule among aquatic plant and nutrient concentration of water, sediment, and sediment pore water. (2) Ecological characteristics of different lake ecotypes are studied; differences of ecological characteristics and its Index System between meadow lake and algae lake are analysed. (3) Ecological succession process of shallow lakes is divided into five stages, and shallow lakes are classed into eight ecotypes. (4) A set of Technic route of shallow lake eco-restoration is put forward, and filling technology of clean sediment is applied successfully to littoral cutbank belt eco-restoration of shallow lakes. The conclusions drawn in this study is important for guiding ecological restoration of shllow lakes.更多还原