Ecological ponds recharge groundwater and create habitats for diverse species

The ecological pond is an important part of the water resource recycling system at Shanshan Farm. The water flowing into the pond comes from the daily domestic wastewater generated by the park's operations. After preliminary treatment, it is transformed into reusable reclaimed water, which is then guided into the ecological pond for further natural purification. Through the ecological pond system, not only can groundwater be replenished, but it also creates diverse habitats on the farm, enhancing overall biodiversity and realizing the concept of water resource recycling and reuse.

After entering the ecological pond, the reclaimed water sequentially flows through three stepped purification areas, each equipped with one or two types of aquatic plants that naturally purify the water. These include Egeria densa, which effectively absorbs dissolved ammonia nitrogen and phosphates in the water; water hyacinth, which can reduce approximately 60% of the chemical oxygen demand (COD); and papyrus and cattails, which also help remove phosphates. After purification through this multi-layered plant system, the reclaimed water can be reused, achieving water conservation and preventing untreated wastewater from impacting the environment.

At the same time, the ecological pond also plays a role in ecological restoration by planting a variety of Taiwan's native and rare aquatic plants, allowing visitors to closely appreciate the beauty of nature. Among them, the Ba-Tsing tree, with leaves resembling guava, was once on the verge of extinction; the Da’an water shield, with small light purple flowers, can currently only successfully reproduce in the Da’an area; and the Taiwan duckweed, which produces yellow flowers, is a native aquatic plant unique to Taiwan. The restoration of these plants not only enriches the landscape of the ecological pond but also contributes to the conservation of Taiwan’s native species.