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本研究从土壤容重、土壤总孔穴度、土壤毛管孔穴度、土壤非毛管孔穴度等项目入手，研究了西双版纳定植５～７年的山桂花、西南桦、马尖相思、高阿丁枫、西南桦×山桂花、西南桦×马尖相思、西南桦×肉桂、高阿丁枫×马尖相思、高阿丁枫×西南桦９种人工林土壤的通透性能。经连续５～９年定点观测，结果表明，山桂花等９种人工林的土壤通透性能，与天然林相近。山桂花、西南桦、马尖相思、高阿丁枫４种人工纯林０ｃｍ～３０ｃｍ土层的土壤通透性能的变化规律大致是定植初期变化平稳，进入生长旺期（定植后３～７年）通透性能普遍变差，以后又逐渐得以改善。因此，定植年限较长的人工林的土壤通透性能一般比定植年限较短的人工林的土壤通透性能较好。
In this study, the author studied the soil bulk density, total soil porosity, soil capillary porosity, soil non-capillary pore size and other projects to study the Osmanthus fragrans seedlings planted in Xishuangbanna 5 to 7 years, Betula sinica, Acacia macrostachya, Betula platyphylla × Osmanthus fragrans × Betula platyphylla × Acacia mangium × Betula platyphylla × Betula platyphylla × Ophiopogon japonicus × Acacia crassicarpa × Betula platyphylla × Betula platyphylla × Glycyrrhiza uralensis plantations. After 5 to 9 consecutive years of fixed-point observations, the results show that 9 kinds of plantation Osmanthus fragrans soil permeability, similar to the natural forest. The change regularity of soil permeability in 0cm ~ 30cm soil layer of four kinds of Artificial Pure Forest: Osmanthus fragrans, Betula alnoides, Acacia cusia and Artemisia fongii changed roughly in the initial stage of planting, and entered into the growing season (3 to 7 years after planting Permeability generally deteriorates and then gradually improves. Therefore, the soil permeability of plantations with longer planting years is generally better than that of plantations with shorter plantings.