水土流失严重与气候干旱是黄土丘陵半干旱区当前面临的两大生态问题。
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Rendzina A type of brown earth soil typical of humid to semi-arid grasslands over calcareous rocks.
一种褐色的土壤,其特征为潮湿的半干旱的草地上覆盖着石灰质的岩石.
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沙漠地区人工固沙植被对土壤温度与土壤导温率的影响
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Effect of different rate of organic manure on phosphorus species is studied in arid red soil.
结果表明,施用有机肥能显著增加旱地红壤的速效磷含量.
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