Study Of The Efficient Utilization Patterns Of Solar Greenhouse On Semiarid Area Land Resource

Slope land resources is the main part of the agricultural land resources in our country. and the importance of a stable environment influence factors. Terrace slope is a half arid areas, which is one of the main measures of efficient utilization of water and soil resources. To built the terrace slope solar greenhouse can achieve the goal of intensive utilization of field resources.Therefore, based on the slope sunlight greenhouse emissions and efficient utilization of resources, aiming at SongShan District of Chifeng city different slope positions, altitude and roof angle before and after to analyz the inside and outside wall of the greenhouse environment factor.Semi arid zone of slope land resources utilization has great significance, at the same time to improve drought resistance, ability to withstand natural disasters, improve the ecological environment, to promote coordinated development of ecological economy play a big role.The main conclusions are as follows:(l)On the slope, slope and undert the slope.the temperature of indoor greenhouse is higher than the outdoor greenhouse.The highest difference is28℃,and the temperature on the slope is higher than any other position of any other time.Three humidity of greenhouses in different position are all under the slope is larger than on the slope. They all showed that undert the slope> undert the slope> on the slope.The greenhouse can preserve heat.In terms of the soil temperature, the temperature of indoor is higher than outdoor and on the slope the termperature rapid rise higher in the day, and lowering slower in the night.Three solar radiation of greenhouses in different position are all indoor is larger than outdoor.Slope under solar radiation in greenhouse is higher than in the slope and slope.(2)Compared the roof before33.5°angle and roof before29.5°angle of sunlight greenhouse.Roof before33.5°Angle of solar greenhouse underground5cm,10cm,20cm of soil temperature, solar radiation, temperature and humidity are better than the roof before33.5°Angle.(3)The sunlight greenhouse in different altitude, low point sunlight greenhouse of indoor air temperature is higher than the high point sunlight greenhouse, by analysis of variance, the two different positions in each period in the sunlight greenhouse in indoor air temperature is significantly different, significant level of0.001. (4)After different wall greenhouse comparison, soil after the index are higher than that of brick wall’solar greenhouse greenhouse in daytime.temperature decline more slowly in night.(5)Through the research on summer sunlight greenhouse inside and outside of each index, in the same way. in the sunlight greenhouse environmental factors is better than that of outside.Come to a dicision, sunlight greenhouse construction can efficient use of sloping lands.