soil climatic zone

基本解释

Because of unique climatic condition and geological condition in perennially frozen soil zone, structural design of asphalt pavement in this area has its particularity.
多年冻土地区独特的气候条件和地质条件决定了该地区沥青路面结构设计的特殊性。
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As a result of in arid, semi-arid climatic zone, soil erosion and sediment deposition in Iran are very serious and have become one of main problems influencing national development.
伊朗地处干旱、半干旱气候带，土壤侵蚀严重，河流泥沙问题突出，已成为影响该国经济社会发展的主要环境问题之一。