英德
有道
百度
谷歌
图片
维基
百科
阳性树种
sun species
[林] intolerant tree species
[林] intolerant tree species
- 耐荫树种优势度趋于降低，阳性树种优势度逐年增加。
Abundance of shade-tolerant trees tends to decrease and that of intolerant trees increases year by year. - 灌木层中乔木树种和阳性乔灌木种类比例、相对密度和重要值均随坡位梯度从下部到上部逐渐增大。
Percentage, relative density and importance values of tree species and intolerant tree and shrub species increased while slope gradient from lower to upper. - 为了加快三江源玛可河自然保护区恢复森林资源步伐，培育适宜当地生长良好的阳性树种对于全面发展本区造林具有重要意义。
Seedling-raising intolerant tree species were neglected in the region. It is very important to seedling-raising intolerant tree species for develop forest resource in the nature reserve.
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