Intelligent Irrigation for Urban Landscapes: Distributed Pumping Station Networks and Landscape Water Recycling

Intelligent Irrigation for Urban Landscapes: Distributed Pumping Station Networks and Landscape Water Recycling

Modern urban landscape irrigation faces challenges due to its vast area, complex terrain, and high water standards. By constructing a distributed pumping station network and integrating landscape water recycling technology, efficient and water-saving intelligent irrigation management can be achieved, enhancing landscape effects and environmental sustainability.

A distributed pumping station network is the foundation for achieving regionalized precision irrigation. Unlike the traditional model relying on a single centralized pumping station, this network establishes multiple small, self-controlled pumping station units in different functional areas of urban landscapes (such as park lawns, roadside green belts, and plaza gardens). Each pumping station draws water from a nearby source (such as the urban pipe network, reservoirs, or circulating water tanks) and independently manages the pressurization and distribution of irrigation within its designated area. This layout significantly shortens water delivery distances, reduces pipe network pressure loss and energy consumption, and allows the system to achieve differentiated and flexible precision irrigation control based on the water requirements of plants and soil conditions in each area.

Landscape water recycling is the core of improving system sustainability. The technology integrates landscape water features (such as artificial lakes, streams, and rain gardens) within the park into a systematic water source and storage unit. By setting up a circulating filtration system, wastewater from infiltration and surface runoff in green spaces is collected and purified, replenishing the landscape water features; simultaneously, irrigation pumping stations can directly draw water from these water bodies for irrigation. This forms a local water cycle of "irrigation—infiltration/runoff—collection and purification—re-irrigation," significantly reducing dependence on municipal tap water. Combined with rainwater harvesting facilities, rainwater can be stored during rainy days, further enriching the water source.

By intelligently linking a distributed pumping station network with water circulation technology, urban park irrigation systems can achieve the goals of on-demand water extraction, efficient water use, and water conservation through recycling. This not only significantly conserves precious water resources and reduces long-term operation and maintenance costs but also enhances the ecological resilience of urban green spaces, representing an important practice in building water-saving and intelligent landscape systems.