Multifunctional low impact development bioretention system
A low-impact development and bioretention technology, applied in the field of low-impact development of bioretention systems, can solve problems such as high cost and increased difficulty in municipal pipeline networks, and achieve the effect of alleviating runoff pollution
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Embodiment 1
[0023] Such as figure 1 A water storage multifunctional low impact development bioretention system is shown:
[0024] (1) From top to bottom, there are plant layer 3, runoff water temporary storage layer 4, covering layer, planting soil layer 14, sand layer 6, gravel water storage layer 9 and rainwater storage barrel 17.
[0025] (2) In order to meet the daily maintenance and landscape effect, the plant layer 3 adopts drought-resistant and flood-resistant crabapple with well-developed root system.
[0026] (3) The deeper the runoff water temporary storage layer 4 is, the stronger the water storage capacity will be. However, if it is too deep, it may cause serious plant waterlogging. Filter the sediment, and select the water storage depth to be 250mm when designing according to its good structural performance and flood resistance.
[0027] (4) covering layer mainly is to cover the top layer of planting soil layer 14 with bark and leaf, and effect is to keep the humidity of so...
Embodiment 2
[0038] Such as figure 2 A simple and versatile low-impact development bioretention system is shown:
[0039] (1) From top to bottom, there are vegetation layer 3, runoff water temporary storage layer 4, covering layer, planting soil layer 14, sand layer 6 and gravel water storage layer 9.
[0040] (2) Most of the plants selected for the planting soil layer 14 are perennial herbaceous plants. The planting soil layer 14 is the main part of the multifunctional low-impact development bioretention system. In order to meet the daily maintenance and landscape effects, the plant layer 3 adopts drought-tolerant Begonias with waterlogged and well-developed root systems.
[0041] (3) The deeper the runoff water temporary storage layer 4 is, the stronger the water storage capacity will be. However, if it is too deep, it may cause serious plant waterlogging. Filter the sediment, and choose a water storage depth of 150mm according to its good structural performance and flood resistance d...
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