| In recent years,with the improvement of people's quality of life,the requirements on the living environment have become higher and higher.In order to meet the requirements of people on the living environment,designers and developers have paid more and more attention to the construction of waterscapes in residential communities.Waterscapes have gradually become residential communities An important part of the landscape and one of the important indicators for evaluating the environmental quality of the residential area,it can not only adjust the climate environment of the residential area and increase the air humidity,but also meet people's hydrophilic needs,improve the overall environmental quality of the residential area,and bring certain social,Economic and ecological benefits.In this paper,the waterscape in the residential area of Xixiangtang District,Nanning City is taken as the object of investigation and evaluation,and the water body landscape of the residential area of Xixiangtang District,Nanning City is comprehensively analyzed and evaluated.Through the methods of literature review,field investigation and on-site statistics,field survey and analysis of water bodies,revetments,plants,landscape sketches,and hydrophilic facilities in the residential area of Xixiangtang District,Nanning City,followed by AHP and Weber-Fish Na's Law constructs an evaluation model for comprehensive evaluation.The research results are as follows:(1)On-site investigation of the water features of the residential area in Xixiangtang District,Nanning City,it is concluded that:(1)Waterscapes mainly include fountains,falling waters,ponds,swimming pools,and streams.Among them,fountains are the most widely used,with a frequency of 63.64%;falling waters have a frequency of 59.09%;ponds have a frequency of 47.73%;swimming pools have a frequency 40.91%;the application frequency of streams is 11.36%.Accordingto the statistical analysis of the plane form of waterscape,regular waterscape accounts for66.23%,natural waterscape accounts for 29.87%,and mixed waterscape accounts for3.90%.According to the statistical analysis of water body morphology,the application frequency of dynamic waterscape is 55.84%,and the application frequency of static waterscape is 44.16%.(2)There are three types of revetment modes: vertical revetment,stepped revetment and gentle slope revetment.There are also cases where more than two revetment models are used together.The application frequency of vertical revetment is 59.74%,the application frequency of gentle slope revetment is 7.79%,and the application frequency of two or more revetment modes is 32.47%.The materials used for the revetment are pebbles,natural mountain stones and granite,etc.,and the construction methods of concrete pouring,mortar and dry construction are used.Formed concrete pouring vertical revetment,slurry brick vertical revetment,slurry cobblestone gentle slope revetment,slurry cobblestone vertical revetment,dry masonry gentle slope revetment.(3)The types and levels of plants on the revetment are relatively rich,and the color combinations are rich and diverse.A total of 94 species of revetment plants belonging to 47 families and 83 genera belonged to the 44 residential communities under investigation.Among them,there were 2 families,2 genera and 2 species of ferns,43 families,79 genera and 90 species of angiosperms,and 2 families,2 genera and 2 species of gymnosperms.There are 44 species of trees,accounting for 46.81% of the total number of plants;28species of shrubs,accounting for 29.79% of the total number of plants;21 species of herbaceous plants,accounting for 22.34% of the total number of plants;1 species of liana,accounting for 1.06% of the total number of plants.(4)The landscape sketches used in waterscapes include flower pots,sculptures,tables and chairs,stone benches,pavilions,bridges,and landscape walls.Sculptures and bridges have the most applications,with a frequency of 29.54%;followed by flower pots and pavilions,with a frequency of 25.00 %;The application frequency of tables and chairs is11.36%;the application frequency of long stone stools is 9.09%;the application frequency of landscape walls is 13.64%.The materials used in landscape sketches are concrete,metal,wood,stone,etc.The application frequency of concrete is 65.91%.The application frequencies of stone,wood and brick are 11.36%,18.18% and 9.09% respectively,and the application of metal materials is the lowest at 6.82%.(5)The hydrophilic facilities in the waterscape mainly include the hydrophilic square,the hydrophilic wooden walkway,the waterfront walkway,and the hydrophilic platform.Psychological needs.Safety facilities include warning signs,fences,protective pads,etc.The material of the waterscape hydrophilic space mainly uses granite,floor tiles,pebbles,etc.,the application frequency of granite is 75.00%;the application frequency of wood is18.18%;the application frequency of small tiles and floor tiles is 11.36%,and the application frequency of cobblestone is 13.63%,the use of small stone is the least,and the application frequency is 2.27%.(2)Based on the analytic hierarchy process,a waterscape evaluation system for residential quarters in Xixiangtang District,Nanning City was constructed.The comprehensive weight comparison results were: plants(0.3076)> water bodies(0.2415)>revetment(0.2285)> hydrophilic facilities(0.1297)> landscape sketches(0.0927).From the weight values of each criterion layer,it can be seen that among the elements that constitute a water feature,plants have the greatest impact on the water feature,followed by water bodies and revetments.Among the selected evaluation objects of the residential district of Xixiangtang District,Nanning,there are two districts with excellent reviews,namely Shengtianxi Garden(0.9120)and Longguangshui Yuelong Bay(0.9016),accounting for 15.38%;the reviews are good There are 8 communities,namely Cultural Park(0.8373),City Bi Garden(0.8542),Fuman Garden(0.8181),Taiwan Street Yilan Bay(0.8526),Zhengheng International Plaza(0.8506),Tongren Xuefu Avenue(0.8369),Grand Hyatt Longguang(0.8551)and Zhonghai Yuhu Xi'an(0.8408),accounting for 61.54%;there are three general commented communities,namely Shengtian Shangdu(0.7915),Times Homeland(0.7941)and Zhenye · Shang Government(0.7885),accounting for23.08%.The evaluation results obtained are basically consistent with the actual situation.(3)According to the survey results and evaluation results,summarize and summarize the water bodies in the waterscape of the residential area of Xixiangtang District,Nanning City;the waterscape is dry without water bodies;the excessive use of hard revetments destroys the ecological environment;Residents have a hydrophilic experience.In response to the discovered problems,it is proposed to properly plant aquatic plants and improve the self-purification ability of the water body;rationally design the waterscape and strengthen the maintenance and management in the later period;integrate the natural ecological revetment and enrich the form of revetment;rationally set up hydrophilic facilities and change the model of revetment for Xixiang,Nanning City The design of the waterscape in the residential area of the Tang District provides theoretical guidance. |
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