Sponge City(LID) Theory Of Yanan New District Study On The Layout Of Green Open Space Planning

The 18 th Party Congress of China put forward the construction of "ecological civilization" concept, the ecological problems to rise to the strategy of "five in one". Ecological problems in urban water-saving work caused the party central committee and state council attaches great importance to. Multiply to build natural, natural penetration, natural purification of natural ecological city, 2014 proposed sponge city construction of housing and urban-rural development concept and organization compiled the sponge urban construction technical guide.Valley gully loess plateau region is one of the earliest development of areas of human settlement environment in our country, is also the most serious soil and water loss, the most vulnerable ecological regions, Yan’an is the city of the region is a typical representative: on the one hand she faced with water shortage, drought has long vexed, on the other hand, facing the serious threat of flood and waterlogging disasters. How to make the city will effectively absorb water like a sponge, slow release, stranded, become the key to solve this problem. And the construction of urban green open space from a certain extent, can realize this vision. Loess hilly cities sponge build will focus on urban green open space, green open space is an important part of many urban system.Papers on the green open space, the mountain city, sponge city basic theories, methods, related research and practice on the basis of the construction of urban green open space in a sponge the role was studied.firstly, analysis function of green open space of the sponge. Secondly, to Yan’an area geology, geomorphology, hydrology, climate, ecological condition such as vegetation, affecting the Yan’an mountain district green open space has carried on the induction, the related elements characteristics analysis of Yan’an district construction sponge coping styles of the city. In the end, on the basis of this theory was proposed based on the sponge city under the perspective of Yan’an district green open space of construction method and the layout scheme, and puts forward appropriate loess plateau mountain sponge city construction pattern of the city.