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作 者:张继祥[1,2] 刘克长[1,2] 任中兴[1,2] 林全业[1,2] 李德生[1,2] 许慕农[1,2]
机构地区:[1]山东农业大学基础部 [2]山东农业大学林学院
出 处:《山东农业大学学报(自然科学版)》1997年第3期262-268,共7页Journal of Shandong Agricultural University:Natural Science Edition
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.
分 类 号:S161[农业科学—农业气象学]
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