Research On Application Model Of Eco-friendly Green Roof

Green roof as a aerial a greening is becoming more and more popular. People regard it as a new trend of high-tech development, because it can save urban land resources and open up urban space when Green roofs were carried out. Facing with strait plight of urban ecosystem and increasingly tense of available land resources for greening, green roof has got more and more approbation from government, enterprises and citizens. Green roof is progressively enter the rapid develop new level by appeal, experimental unit and popularize.Simple formula green roof is a form of wide applicability, this saving technology can help to reduce operating costs and nutrition cost. Utilizing document induction and Experimental comparison method, the core subjects of this paper are green garden waste compost utilization, water container cultivation and Simple formula Green Roof Plants.Combine with technologies like rainwater recycling, solar energy utilization and saving fertigation, this paper is trying to explore a application mode which is available for simple roof greening to achieve the purpose of energy saving and demand of building-saving urban gardens.The main results as below:⑴ Through comparative analysis of experiments, we filtered out a Matrix Formulations which is good to retain water and nutrients when we have green garden waste compost products(soil conditioner) applied to Simple green roof planting matrix. That is soil conditioner: peat: ceramic = 4:4:2(per cubic meter to add 1kg Aquasorb and 1kg Norwegian fertilizer.⑵ We croped the primaries 10 variety plan in green roof matrix; The results showed that teh Callisia repens showed the best effect of all the treatments. And then Portulaca grandiflora > Sedum sarmentosum > Mesembryanthemum cordifolium> Rhoeo spathacea>Sedum lineare >Sedum alfredi> Sedum elatinoides> Portulaca pilosa > Sedum hispanicum in particular sequence.⑶ By comparing and analyses 8 kinds of water container planting, we filtered out those with good water effect and economy by their structure and drainage features.Application planting water container, on the one hand can hold back some rain, improve roof drainage system, reduce stress on urban surface runoff drains; on the other hand,accumulation of rainwater can supplement irrigation of plants, but also a water-saving measures.⑷ This paper summed up the simple application of the promotion model of green roofs by three promotion model case design techniques and systems integrated analysis.The basic problem of environment-friendly green roof application mode, the first to solve the load-bearing, water, drainage, green garden waste compost application matrix planting,water container planting, screening plant, according to local conditions using rainwater harvesting, solar-powered irrigation and other eco-technology, integrated into a roof Meanwhile greening system to address the construction, maintenance problems and achieve the purpose of energy saving, in line with the requirements of sponge urban construction.This paper also discuss on the air vegetable garden. We hope could provide a good reference and promote green roofs to promote the sustainable development of the urban environment.