Study On The Partition Of Sunlight Habitat Types Based On Software Simulation

In recent years,with the acceleration of urbanization process,urban problems are becoming more and more serious,urban green space ecological construction has become the focus of many scholars.As an important part of urban green space,campus green space has the characteristics of high green land rate,unified management,long holiday buffer and strong demonstration,and the ecological construction of campus green space should be paid more attention.Nowadays,the research on the ecological construction of green space is mostly for the macro and Medium level ecological pattern research.The theory and method of ecological design of green space are very lacking.Habitat construction is a research for the field of ecological construction in micro-level.Based on the theory of habitat construction,climate meteorology and theory of digital landscape science,this paper studies the theoretical zoning of sunshine factor habitat zoning,uses the method of computer simulation to determine the theoretical basis of light factor habitat classification,and determines the light factor habitat The basis of the partition and the specific division method.Taking the South Gate Garden and the East Building Garden of Xi'an University of Architecture and Technology as the practice base,this paper carries out the observation experiment of the photographic factor habitat zoning in the field and verifies the rationality of the theoretical zoning.Finally,the light factor in the field was simulated and applied.The design of the plant was guided by the design of the plant community in Kangdingheyuan.according to the light factor,the site into different partitions.: full Sun duration 6h-8h,building east-half-sun area(sunshine duration 4-6h),building west-half-sun area(sunshine duration 4-6h),the shade area(Sunshine duration 0-4h,not including 4h);plantshade habitat type(4-6h),plant-half-sun habitat type(sunshine duration 4-6h).The results of habitat type division with photosynthetically active radiation were as follows: the daily average photosynthetic active radiation in the field was divided into shady area according to the computer simulation,less than or equal to 1.5 × 106 J / m~2 area are shade duration,between 1.5-4.5 × 106 J / m~2 of the area is divided into the middle area(1.5-2.5 × 106 J / m~2 are part-shade-area,2.5-4.5 × 106 J/m~2 are part-sun-area);daily average photosynthetic active radiation greater than or equal to 4.5 × 106 J / m~2 area are full-sun area.The habitat of the site is an important factor in the design of the planting.Different habitat types are suitable for different community growth.Based on the existing habitat construction theory,this paper studies the light factor in the habitat factor,and clarifies how the light factor type is divided when the habitat type is divided,and the light factor type is determined.The basis of the division,to a certain extent,supplement the university campus green space habitat theory.For the next step of the site design,plant community planting and other related design to provide a scientific basis.