不同结构日光温室光环境及补光研究

光照状况是影响日光温室生产力的重要因素。在建筑材料相同的情况下，结构(几何形状)对温室内光照起决定性作用。为具体分析不同结构温室内光环境，分别对单斜面、抛物面、圆-抛物面三种结构类型日光温室内不同位点的光照进行了测定、比较和分析，结果表明：圆-抛物面温室虽然提高了透光率，南北方向上光照度也较其他两温室均匀，但室内光照度仍远低于室外，且南北方向上光照度仍有明显差异。在温室后墙上张挂反光膜以补充温室内后墙附近光照度，可以缩小温室内南北方向上光照度的差异，有效地改善温室内整体光环境，提高作物产量。

Illumination Environment of Different Structural Solar Greenhouses and Their Supplement Illumination

Light illumination is the important factor that affects the performance of solar greenhouse. Structure(geometric shape) of solar greenhouse has a direct effect on light illumination when using the same constructing materials. The results analyzing light illumination inside three different structural solar greenhouses, i.e., single slope greenhouse, parabolic greenhouse, circle-parabolic greenhouse, show that circle-parabolic greenhouse can reduce the difference of light illumination between south and north and rise light transmissivity, but light illumination inside house is less than that outside, and the difference of light illuminations was notable. Reflecting film was covered on the back wall of greenhouse. In a word, above methods can reduce the difference of light and ameliorate illumination between south and north notably in the greenhouse, and improve the light environment still in the locations close to the back wall. This method can increase crop yield.