【摘 要】
：
Mollisols are common in South America. They cover about 8.87 × 10 7 ha, 1.3 × 10 7 ha and 4.3 × 10 6 ha in Argentina, Uruguay and Southern Brazil respectively, which is 11.5% of the world total. Most
【出 处】
：
Chinese Geographical Science
论文部分内容阅读
Mollisols are common in South America. They cover about 8.87 × 10 7 ha, 1.3 × 10 7 ha and 4.3 × 10 6 ha in Argentina, Uruguay and Southern Brazil respectively, which is 11.5% of the world total. Most of South American Mol- lisols were developed on Plei
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