摘要
本文利用晴天条件下的实测资料，对平原复合农林的气象效应进行了研究。结果表明：（１）复合农林的防风效能平均在４５％以上；（２）其内的空气温度、土壤热通量等热力参数比林内旷野有所增加；（３）林内空气相对湿度提高４％左右，０～２０ｃｍ土层的土壤温度提高２％～３％，蒸发量明显比林外小。
The studies on the meteorological effect of the plain compound farmland forest were carried out,and the observational data were obtained on the sunny days.The results show that protective effect of the forest from wind was more than 45%;that the air temperature and the soil heat flux were higher than those out of the forest farmland;and that the air relative humidity in the forest increased by 4%,the soil humidity between 0￣20cm increased by 2%to 3% over the open farmland,while the evaporation quantity was obviously reduced.
出处
《山东农业大学学报（自然科学版）》
CSCD
1997年第3期262-268,共7页
Journal of Shandong Agricultural University：Natural Science Edition
关键词
防风效能
动力速度
湍流系数
土壤热通量
wind protective effect
dynamic speed
turbutivity
soil heat flux
