Research And Practice Of Water Conservancy Landscape System In Jiangxiyan Irrigation Area

This paper mainly studies the regional landscape system in Jiangxiyan Irrigation Area that contains the ancient county town of Longyou,the vast farmland,the rural settlements,and the Jiangxiyan water conservancy engineering system,all of which are closely related to water conservancy.With the historical development,an irrigated agricultural landscape of “water bolsters dam-building and dam boosts agriculture” has been created;water was introduced into the city,realizing the water system pattern of "moats in the city and weirs in the field".Based on the in-depth study of historical documents,local records,historical satellite maps,surveying and mapping,and field investigations,this paper combs the history of the water conservancy projects in the Jiangxiyan Irrigation Area from the Yuan Dynasty to the Republic of China,especially the development history of the barrage.Under the guarantee of the relatively complete water system utilization model of "barrage combined with channel irrigation",the regional agriculture has developed rapidly,and at the same time settlement construction has been accelerated and the unique rural landscape of the irrigation area is shaped.The thesis is mainly divided into four parts.The first part: Chapter one Introduction,introduces the research background,objectives and significance,defines the research subject and scope,and reviews related studies on traditional Chinese human settlement environment and regional landscape,water conservancy landscape system,and the water system of Longyou County as well as Jiangxiyan,and proposes corresponding research methods and research framework.The second part: Chapter two to Chapter five.From the perspective of human landscape construction in landscape architecture,on the basis of summarizing the natural environment and social background of the region,the author combs the development process of water conservancy projects in Jiangxiyan Irrigation Area,and analyzes the Jiangxiyan Water Conservancy Engineering System,which enjoys the largest scale and the widest irrigated fields,from the aspects of site selection,composition units,weir water utilization,management and maintenance mechanisms.Then from three aspects of agricultural development,settlement construction and landscape construction in irrigation areas,the author examines the impact of the water conservancy system in Jiangxiyan Irrigation District on the regional landscape pattern,and presents the spatial relationship and operation mechanism of the water system in the irrigation area in graphical language.The third part: Chapter six.Based on the foregoing research,the author summarizes and proposes the regional landscape system pattern on the basis of water conservancy in Jiangxiyan Irrigation Area.That is the "nature-water conservancy-agriculture-city-humanity" landscape system pattern composed of the four major elements-natural basement,barrage center,canal system skeleton and irrigation area boundary,including unique natural landscape pattern and intelligent water conservancy projects,the irrigated agriculture landscape boosted by weirs,the pattern of urban construction that conforms to nature,the pattern of urban and rural water systems that connect inside and outside,and the rich and diverse cultural landscape.At the same time,the impact of rapid urbanization on the regional water conservancy landscape pattern was analyzed,and with the water conservancy landscape pattern as the guidance,the regional planning and design strategy was proposed.The fourth part: Chapter seven to Chapter ten.Based on the theoretical research in the preceding chapters,under the guidance of the current status and planning scheme of Jiangxiyan Irrigation Area,combined with the water conservancy landscape elements in the region,the author attempts to make a plan on the blue and green network of Jiangxiyan Irrigation Area in the regional landscape system from the perspective of development and protection,and designs the Jiangxiyan scenic area in key plots,with a view to continuing the regional history,promoting the integrity of the regional landscape system,and creating the rural landscape of the irrigation area where people and nature live in harmony.