浅析城市绿地系统规划中水景生态化的营造

依据生物多样性原则和园林湿地原理,阐述了园林水景向生态化方向发展的趋势,介绍了园林湿地水景的构造,湿地植物系统的配置和湿地水景的生态驳岸处理方法。

遂宁市五彩缤纷湿地公园景观生态现状调查与研究

对四川省遂宁市五彩缤纷湿地公园进行了现场调查和研究,主要从生态景观型防洪堤的改造、湿地植物群落以及水景处理3个方面入手,从生态和景观两方面综合考虑,对该公园的优缺点进行了评价,以期为该公园的后续发展管理提供可行的建议与方法,同时为我国其它具有类似条件的城市或地区的滩涂湿地的开发建设做有益的探索,具有一定的借鉴与参考意义。

强化自净型水景湿地系统的构建及水质修复效果

针对保持水景水质的实际需求,设计和构建了包括水景观区、挺水植物区、生态净化区的强化自净型水景湿地中试系统,并研究了该系统的水质污染过程与水质调控效果。结果显示,当生态净化系统停运时水景湿地的水质迅速恶化,停运6 d后COD、TN、TP分别升至99、0.13、2.60 mg/L;系统重新运行后能达到较好的水质修复效果,水景水体中的COD、TP、TN和藻类生物量较快下降,运行18 d后COD、TN、TP和叶绿素a分别控制在50 mg/L、0.3 mg/L、0.036 mg/L和12μg/L以下。这表明生态净化系统能够迅速改善并维持水景湿地水质。

Performance of Subsurface Constructed Wetland in River Rehabilitation

[ Objective] This study was to research the treatment effect of different media in undercurrent wetland on contamination, so as to pro- vide reference for rehabitating water body of river along small towns. [ Method ] Three different media of gravel, cobblestone and shale were used to rehabilitate water quality of contaminated river. [ Result ] Gravel, cobblestone and shale all performed well in removing TN, TP and CODw,, in contaminated water, of which gravel stuffed undercurrent wetland run best, averagely removing 49.4% TN, 34.7% and 48. 5% COD~, respectively. [ Conclusion] Undercurrent constructed wetland can effectively improve the water quality of contaminated river, and it is cheaper in cost and simpler in operation, thus suitable for generalizing in small towns of China.

住宅小区水景湿地设计探讨

水景湿地是现代住宅小区的重要组成部分,对提升住宅小区品质和居住舒适性具有显著价值。在分析水景湿地的水质特点和主要问题的基础上,提出水景湿地中常规生态要素优化设计原理,以及在水景湿地设计中引入人工湿地作为"人工强化分解者系统"的必要性。介绍了引入"人工强化分解者系统"的两个小型水景湿地,探讨兼具景观功能和水质自我修复能力的水景湿地系统的构建方法与设计原则。