沿海湿地水生植物群落模式对城市雨水园栽植策略的研究

Study on Planting Strategies of Urban Rainwater Garden Based on Aquatic Plant Community Model in Coastal Wetlands

摘要: 城市雨水花园是一个能将环境效益和景观效益有机结合的载体，本次研究旨在通过测试应用于雨水花园的湿地植物群落，为如何通过栽植技术降低管养难度，维持水系统稳定性提供技术支撑。通过引种华东沿海湿地的主要乡土水生、湿生植物群落，测试不同群落在一定生长周期内覆盖度、高度、冠幅等指标；由此可知栽植技术需要考虑自然环境下的植物群落构成及特征，适时地进行人工干预。由于栽植的各群落模拟自然地区不同的生态及地理环境，其发展趋势和组团也不相同。本次研究通过引种长江流域典型的水生植物群落，包括芦苇群落湿地型、香蒲群落湿地型、菰群落湿地型、苔草群落湿地型、芦苇–荻群落湿地型、玉蝉花群落湿地型对解决绿地初期植被适应性提出了可行的技术策略。

Abstract: Urban rainwater garden is a carrier that can combine environmental benefits and landscape benefits. This study aims to test wetland plant communities applied in rainwater garden to provide technical support for how to reduce the difficulty of management and maintenance through planting technology and maintain the stability of water system. By introducing the main native aquatic and wet plant communities in the coastal wetlands of East China, the coverage, height and crown width of different communities in a certain growth cycle were tested. It was concluded that the plant community composition and characteristics in natural environment should be taken into account in the planting technology, and artificial intervention should be carried out in time. Because the planted communities simulate different ecological and geographical environments in natural areas, their development trends and groups are also different. The paper studies the introduction of typical aquatic plant communities in the East China, including reed community wetland, cattail community wetland, Zizania community wetland, Carex community wetland, reed-silvergrass community wetland and Iris ensata community wetland, to put forward feasible technical strategies to solve the initial vegetation adaptability of green space.