Bed planting and water management in the Yellow River: Serious water and soil erosion in the Yellow River has led to frequent basin-wide drought and floods.
黄河流域的垄播和水管理：黄河流域严重的水土流失导致整个流域经常发生水旱灾害。
After the forest disappeared, the soil became hard and compact, like yellow cement.
森林消失后，土壤变得很糟而且紧密，像黄水泥。
Heavenly bamboo was planted to POTS with three different types of soil (black limestone soil, yellow soil and purple soil) in order to study the differences of heavenly bamboo.
用盆栽法，研究了黑色石灰土、紫色土、黄壤三种不同土壤类型对南天竹的影响。
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