The project vision is to demonstrate this urban development as resource efficient, intelligent and sustainable, with reduction, reuse and recycling of waste, suppling secure food and effective utilization of solar energy. In the future, we hope to create Changsha into a water culture, agricultural culture, and social cultural, sustainable development, circular economy, characteristic green ecological city.

Changsha exhibited the comprehensive recycling technology of urban sewage, the recycling technology of nutrients in sewage, and the recycling of urban wastewater. Futiancangjun community building demonstration in Changsha installed low flush the toilet, toilet water saving, the sewage are collected in the community and magnesium ammonium phosphate crystallization method to extract the elements such as nitrogen and phosphorus, was established in demonstration building roof rainwater recycling system, biological treatment system on the model family of grey water (water washing with water, the kitchen) and part of the intercept rainfall for processing. In order to improve the living quality of residents, a demonstration of the balcony vegetable garden in Changsha conducted by combining soilless cultivation technology, automatic detection of greenhouse temperature and light environment and remote intelligent control technology. According to the available space characteristics of each family balcony, the balcony is equipped with personalized planting equipment, which is used for planting leaf vegetables, fruit vegetables, sprout vegetables, edible fungi and so on.