哈尔滨夏季水岸水曲柳和樟子松人工林的降温增湿效应

摘要

选取位于哈尔滨市马家沟河边的东北林业大学试验林场（开放森林区域）和黑龙江省森林植物园（开放和未开放森林区域）中的水曲柳（Fraxinus mandshurica）和樟子松（Pinus sylvestris vat．mongolica）人工林作研究对象，以城市广场（无林区域）为对照，观测不同区域水平方向上温度和湿度的日变化规律。观察表明，水岸水曲柳和樟子松人工林具有明显的降温增湿效应，并且因树种不同而有差异，人为活动降低了水岸人工林的降温效应。%Urban plantations of Fraxinus mandshurica and Pinus sylvestris var. mongolica at the experiment forest farm of Northeast Forestry University and Helongjiang Forest Botanic Garden at Majiagou River side in Harbin City were selected with urban square as the control to measure the daily fluctuation of temperature and humidity at the horizontal direction of different regions. The results showed that the river-side plantations of F. mandshurica and P. sylvestris var. mongolica had obvious effects of reducing temperature and increasing humidity with different intensities for different species, and human activities would reduce the effect of reducing temperature and increasing humidity imposed by riverside plantations.