三江平原地区光能资源分布

对三江平原地区不同地域农业气候资源的光能辐射气候因子进行了分析．结果表明：不同地域的年总辐射量、月总辐射量的分布规律基本相似．沿三江平原地区的东南部、中西部和东北部由大到小变化；5月份达到月总辐射量最大值；不同地域的日照时数在三江平原地区的东南部和中西部较大．而在东部地域较小。

This paper analysed the factor of light energy of agroclimatological resources different terrence on the Sanjing plain. The result showed that the distribution rule of the annual total radiant quantity and monthly total radiant quantity are almost resemblant; their values vary from high to low with southeast. midwest till northeast and monthly total radiant quantity reaches maximum in May; hours of sunshine of southeast and midwest on the Sanjiang plain are high and hours of sunshine of east is low.