北京平原沙荒地不同造林模式的小气候变化分析  

Microclimate Changes Analysis of Different Afforestation Modelsin Sandy Wasteland of Beijing Plain

作　　者：吕婷婷 贾黎明[2] Lv Tingting;Jia Liming(Yangcheng State-owned Forest Farm, Yangcheng 048100, China;College of Forestry, Beijing Forestry University, Beijing 100083, China)

机构地区：[1]阳城县国营林场,山西阳城048100 [2]北京林业大学林学院,北京100083

出　　处：《山西林业科技》2021年第2期31-33,共3页Shanxi Forestry Science and Technology

基　　金：北京市科技计划项目(Z121100008512002)。

摘　　要：选取6种有代表性的北京平原沙荒地造林模式,在3种典型天气下进行林内外空气温度、湿度、风速的测定,并进行小气候变化分析。结果表明,夏季晴天时,加杨纯林、欧美杨纯林、刺槐纯林、五角枫+刺槐+油松混交林的降温增湿效果最优,蒙桑+刺槐+法桐混交林和油松纯林最差;夏季阴天时,各造林模式的降温增湿效果均不显著;秋季大风天气时,欧美杨纯林、油松纯林的防风效果最优,其次是加杨纯林和刺槐纯林,最后是2种混交林;不同造林模式的降温增湿效果跟郁闭度有关,防风效果跟郁闭度、树种、树种组成有关。6 typical afforestation models in sandy wasteland of Beijing plain were selected to measure the air temperature,humidity and wind speed inside and outside the forest under 3 typical weather conditions,and the change of microclimate was analyzed.The results showed that on sunny days in summer,the cooling and humidifying effects of Populus canadanensis pure forest,Populus×euramericana pure forest,Robinia pseudoacacia pure forest and Acer mono Maxim.+Robinia pseudoacacia+Pinus tabuliformis mixed forest were the best,Morus mongolica+Robinia pseudoacacia+Platanus orientalis mixed forest and Pinus tabulaeformis pure forest were the worst.On cloudy days in summer,these effects were not significant.On windy days in autumn,the windproof effects of Populus×euramericana pure forest and Pinus tabulaeformis pure forest were the best,Populus canadanensis pure forest and Robinia pseudoacacia pure forest were the second,and the two mixed forests were the last.The cooling and humidifying effects of different afforestation models were related to canopy density,and the windproof effects were related to canopy density,tree species and tree species composition.

关 键 词：平原 沙荒地 造林模式 小气候变化 

分 类 号：S725[农业科学—林木遗传育种]