蔬菜大棚内辐照度时空变化研究

目的]为蔬菜大棚的高产栽培提供理论指导。方法]利用TBQ—DL太阳辐射电流表对蔬菜大棚的辐照度时间和空间变化进行测定和研究。结果]蔬菜大棚内阴天和晴天辐熙度均呈单峰型曲线，阴天辐照度比晴天弱，阴天辐照度在14：00达到最大值，晴天在12：00达到最大值。阴天和晴天辐照度均随高度的升高呈递增趋势。阴天和晴天大棚不同部位辐照度规律均是：上午东侧〉中侧〉西侧，下午西侧〉中侧〉东侧。结论]在生产中，尤其是阴天较多的地区，应该更充分利用蔬菜大棚高层的光照资源。

Research on the Temporal and Spatial Change of Irradiance inside the Greenhouse of Vegetable Planting

Objective] The theoretic guidance for the high-yielding vegetable production in greenhouse was provided through the investigation.Method] The temporal and spatial variation of the irradiance to vegetable planted in greenhouse was measured with TBQ-DL solar radiation ammeter and then analyzed.Results] There was a single peak curve in the irradiance inside greenhouse in both cloudy and sunny day.The irradiance in cloudy day was weaker than that in sunny day and the maximum of the irradiance in cloudy day w...