面对被破坏的护城河水环境，一个重要的修复措施就是利用水生态修复技术，提

面对被破坏的护城河水环境，一个重要的修复措施就是利用水生态修复技术，提高水系自净能力。具体的做法是通过种植或修复高等水生植物以及水生植物群落，去除水中营养物质，使水质得到改善，例如将水葫芦、睡莲等浮水植物用绳子或毛竹圈起来，既提升了水面的观赏效果，也能充分发挥降解污染物的能力，同时避免疯狂生长；此外利用培育动植物或培养微生物，对水中有机污染物不断降解及转化，从而使水环境得到净化，例如适时开展人工放养，因地投放红蚯蚓、鱼虫等微生物，河蚌、螺丝等底栖动物，鲫鱼、穿条鱼等鱼类，完善生物多样性，

Facing the damaged moat river environment, an important restoration measure is to use water ecological restoration technology to improve the self purification capacity of the water system. The specific approach is to remove nutrients in the water by planting or repairing higher aquatic plants and aquatic plant communities, so as to improve the water quality. For example, water hyacinth, water lily and other floating plants are surrounded with ropes or moso bamboo, which not only improves the ornamental effect of the water surface, but also gives full play to the ability to degrade pollutants, while avoiding crazy growth; In addition, the organic pollutants in the water are continuously degraded and transformed by cultivating animals and plants or microorganisms, so as to purify the water environment. For example, artificial stocking is carried out in due time, and microorganisms such as red earthworms and fish insects, benthic animals such as mussels and screws, fish such as crucian carp and striped fish are put in place to improve biodiversity,

Facing the destroyed moat water environment, an important restoration measure is to use water ecological restoration technology to improve the self-purification ability of water system. The concrete method is to remove nutrients from water by planting or repairing higher aquatic plants and aquatic plant communities, so as to improve the water quality. For example, water hyacinth, water lily and other floating plants are circled with ropes or bamboo, which not only improves the ornamental effect of water surface, but also gives full play to the ability of degrading pollutants and avoids crazy growth. In addition, by cultivating animals and plants or cultivating microorganisms, organic pollutants in the water are degraded and transformed continuously, so that the water environment can be purified, such as timely artificial stocking, local release of microorganisms such as red earthworm and fish worm, benthic animals such as mussels and screws, and fish such as crucian carp and anchovy, so as to improve biodiversity.