南方日光温室的辐射条件分析

Analysis of Radiation Condition in Sunlit Plastic Greenhouse at Southern China

[目的]分析南方日光温室的辐射条件,为合理进行日光温室的光照管理提供参考。[方法]利用Sepctrum900-ET便携式自动气象站对南方温室条件下的辐射因子连续观测,每隔15 min读一个数据。[结果]在阴天条件下,日照时数较少、室内光照、热量不足是影响作物生长发育不良的主要原因。日光温室内太阳辐射的时间分布和空间分布存在一定的规律,日光温室内的太阳总辐射量与室外的太阳总辐射量存在着显著的线性相关,要合理安排作物,提高光能利用率。[结论]对温室内作物的种植具有指导意义。

[ Objective ] The research aimed to analyze the radiation condition in sunlit plastic greenhouse at area of southern China, providing references for carrying on the illumination management in the sunlight greenhouse reasonably. [ Method] The radiation factor under the condition of the south greenhouse were observed continuously by using Sepctrnm900-ET portable automatic weather station, with every other 15 minutes a data. [ Result] In cloudy conditions, a little sunshine hours, the lack of indoor light and heat were the main reasons that impacted on crop growth and development. In the sunlight greenhouse, there was some certain rule existing in time distribution and spatial distribution of solar radiation. There was the remarkable linear correlation between the total solar radiation in and outside the sunlight greenhouse. It was necessary to arrange crops reasonably, and make better use of solar energy. [ Conclusion ] The study have a significance in guiding crop plant in the greenhouse.