JW Pavement EcoTechnology

Sustainable Subsurface Eco-MicroWetland

The moist soil/sediment subsurface layer under JW pavement will thrive with life - it provides a wetland eco-system with important consequences. A study by Liu et al. (2012) and Fan et al. (2013) indicates the existence of meiofauna such as chironomid larvae and desmoscolex and a detection of a considerable amount of microorganisms in the underlying layers.

This phenomenon suggests that decomposition of grease and organic compounds, fixation of nitrogen for tree roots are underway in the lower layers. Pollutants are also entering the lower layers to be trapped and decomposed as nutrients for bacteria and then flushed with rainwater as harmless by products. The micro wetland acts as a biological filter to clean the urban surface environment. The proliferating tree roots under the pavement also show a sign of a healthy habital environment for surface vegetation.

L.F. Fan, S.F. Wang, W.L. Chao, C.P. Chen, H.L. Hsieh,
J.W. Chen, T.H. Chen, 2012: Performance evaluation
of JW and other three pavements on microbial
compositions and activities.

Bearing Heavy Loads Installation