acid humus soil的用法和样例：
- Dual-core is a saprophytic orchid plants, was born in an altitude of 700-800 meters deep oak forest humus soil.
- Habitat and Ecology: In forests, on mossy rocks and stony ground with rich humus soil; Alt.300 m. Flowering: Oct. to Jan. of the following year.
- Planting results showedthat tissue cultured seedlings must beplanted under such special conditions as in the mid-dle of May,and covered by bryophyte or wet humus soil.
- As he pondered over the dimly discernible piece of news he had received, he smelled the smell of river water that has been dyed a transparent black by humus soil.