Research On Flood Prevention And Construction Wisdom Of Traditional Gully Villages In Northern Shaanxi

The Loess Plateau has severe ecological environment,arid climate,shortage of water resources,lack of vegetation,complex landform,soil erosion,seasonal flood disaster and other problems are prominent,complex and long-term.There is a lack of reference for traditional construction wisdom in the renewal and design of rural settlements,resulting in the absence of regional features in the process of village construction,the lack of effective inheritance of traditional construction wisdom,and even aggravated soil erosion and frequent flood disasters in villages.The wisdom in the process of traditional settlement construction has important reference significance.Mizhi county of Shaanxi Yang village in the long years influenced by the unique climatic conditions,topographical features after long-term evolution formed the unique drainage system and pattern,the regional characteristic is obvious because its located in the traffic inconvenience,information isolation,the flood control element is still preserved well and play an irreplaceable role,therefore,It is valuable to summarize the model of these flood control elements.Therefore,this study is based on the rain flood control related theory,the disaster chain theory,and the theory of typology and human settlement environment science theory and method,the integrated use of literature study,interview investigation,empirical research and inductive deductive research method,the formation of traditional village as the specific research object,to dig out the traditional village wisdom contained in construction of flood control as the goal,From the perspective of landscape architecture,this paper studies the construction traditions related to flood disaster prevention in villages,including but not limited to site selection,form,layout and traditional water conservancy measures in the process of village construction.The research contents of this paper are as follows: Firstly,traditional villages in northern Shaanxi are divided from different perspectives based on typology,and it is found that gully villages have obvious systematic and regional characteristics of flood control construction wisdom due to obvious disaster situations.Secondly,based on the storm-flood control measures and disaster chain theory,the flood control practice of traditional village in Yangjiagou,Mizhi County,northern Shaanxi was analyzed from different levels,and the experience and wisdom of rainwater utilization measures were summarized.Thirdly,the current situation of Yangjiagou is analyzed,focusing on the hydrological relationship of the small watershed and the distribution of current stormwater control measures.Finally,the flood control elements and construction characteristics of Yangjiagou village are analyzed and summarized,and the flood prevention mechanism and mode of Yangjiagou village are summarized by graphical expression,to provide certain reference significance for the future flood control planning and design of settlements.The main conclusions of this study are as follows:(1)According to the typology theory,the traditional villages in northern Shaanxi are classified into 6,5 and 4 types from the perspectives of topography and geomorphology,historical function and layout,and the basic characteristics of flood control construction of traditional villages with different topography and geomorphology types are discussed;(2)The experience and wisdom of traditional rainwater utilization measures in villages in northern Shaanxi were discussed from different levels;(3)The flood control elements and their characteristics in the construction of seven traditional villages in Yangjiagou are summarized,which are road flood control elements,building flood control elements,water conservancy project flood control elements,terrain elements,water elements,forest and grassland elements,and field elements;(4)Three types of village flood control construction models are summarized,with a total of 15 spatial layout models.The three types of construction modes are respectively the nested fast row mechanism of road-gully-wall,the slope stabilization mechanism of plant-wall-building,and the storage mechanism of cellargarden-ditch.It is found that its overall characteristics are "integration of exhaust storage,slow storage and fast exhaust,separate internal and external drainage".The innovation of this paper has two points:(1)expand the research perspective of cave building.At present,there are many studies on single cave buildings and settlement sites,but few studies on flood disaster prevention from the perspective of the whole village.In this paper,Yangjiagou village is chosen as the research object of flood disaster prevention,and the whole village and small watershed are studied.(2)From the perspective of village flood control construction,the elements and characteristics of village flood control construction are summarized,and the model is summarized by graphical expression.