人工湿地植物的功能与选择

植物在人工湿地中起着非常重要的作用，它可以拦截大颗粒污染物，吸收降解营养物质；能够稳固湿地床表面基质，降低冰雪在湿地表面的凝结速率；可以改善处理系统景观，为野生生物及微生物的生长提供适宜的环境，具有生态美学和经济价值。选择植物应考虑植物的适应性、净化能力、抗逆性、经济和观赏价值以及物种间的合理搭配。本文阐述了植物在人工湿地中的作用和选择人工湿地植物的一些基本原则，提出了植物在人工湿地实际运用时仍存在的一些问题，对其应用前景做了展望与讨论。

Plant function and selectioPlant function and selection for constructed wetlandsn for constructed wetlands

Plant plays a very important role in constructed wetlands, including interception of particulate matter, removal of pollutants, stabilization of the surface of substance, delay of snow cementing, maintenance of the micro-environment, the value of ecological aesthetics and economy. While choosing the plant, right kind, bearing dirty ability, detergent power, ornamental value and species that could rationally collocated were all considered. This article represented the function of plants, plant selection and the proper collocations in constructed wetlands. There are still many problems in application to be solved, so the relating perspective is prospected in this paper.