上海市郊林带的气候效应

对上海市郊林带附近与非林带冬、夏季典型天气下温、湿度、蒸发、辐射量的同步观测资料分析研究显示:林带附近气温日较差比非林带大,林带背风侧气温日较差比林带迎风侧大。林带附近日蒸发量比非林带小,日平均相对湿度比非林带大。林带附近散射辐射比非林带小,反射辐射比非林带大,总辐射差异与季节及林带树叶的茂密程度有关,白天净辐射差异主要取决于总辐射和反射辐射差异,夜间净辐射差异与林带及两地地温差有关。

Study on Climate Effect of Forest Band in Shanghai Suburb

Based on the analyese of temperature,humidity,evaporation,radiation synchronization observation data near forest and non-forest bands in model weather pattern in winter and summer in Shanghai suburb.The results showed that daily range of air temperatur near forest band were higher than that of the non-forest band,the daily range of air temperatur and the forest-leeward were higher than that of the forest-windward.The daily evaporation amount of the near forest band was smaller than that of the non-forest band,the average daily relative humidity near forest was higher than that of the non-forest.The scatter radiation near forest was lower than that of the non-forest,the reflection radiation near forest was higher than that of the non-forest,the difference of the total radiation and was involved in seasons and serried extent of the forest leaves.The difference of net radiation was mainly rest with the difference of the total radiation and the reflection radiation in the daytime,the difference of the net radiation was rest with forest and the difference of ground temperature between near forest and the non-forest at the night.