广西贺州地区温室内空气湿度时空变化研究

以温室为研究对象,探讨研究了晴天、阴天、雨天3种不同类型天气条件下温室内空气相对湿度与绝对湿度的日周期时空变化规律以及整个冬季空气相对湿度与绝对湿度的时空变化规律。为合理调控温室内空气湿度以控制作物病虫害、提高产量和改善品质提供科学依据。

studies on time-space variation regularity of air humidity inside the plastic greenhouse in south china

Based on the observation of air humidity inside the plastic greenhouse locates at Hezhou modern agricultural science and technology demonstration garden of Guangxi automatic region, south china, the time-space variation including day-period and long-period of relative humidity and absolute humidity was probed .The results indicated that :the first, obvious changes of relative humidity were found from 8:00 to 19:00 on the sunshine and the cloudy sky inside the plastic greenhouse ,taking on single vale curve, but no obvious changes of relative humidity were found in the rain, high numerical value was maintained all day long; the daily variation curve of absolute humidity took on double peak shape on the sunshine, but single peak shape on the cloudy sky and in the rain ,and the peak value was emerged at 10:00-14:00,9:00-18:00,8:00-18:00 respectively. The second, no obvious difference of monthly mean relative humidity among superstratum, middle-level and substory of the plastic greenhouse was found in the same and different months of the same moment; but obvious difference of monthly mean relative humidity of the same stratum at different moments of the same month; obvious difference of monthly mean absolute humidity of the same stratum was found in different months of the same moment, taking on rising trend gradually from December to March.