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湿润无保证地区的特点是年降水总量的变化很大,而且每年也不足以保证农作物顺利生长。根据B·B·多库恰耶夫(1948)著名的分类,在全半球的限制地带里,湿润无保证地区是和栗钙土上的草原准黑钙土区与干旱草原区不同的。森林草原区在这里只
Wet-not-guaranteed areas are characterized by large changes in the total annual precipitation and not enough to ensure the smooth growth of crops each year. According to the well-known classification of B.B. Dokucchayev (1948), in the hemispheric restricted zone, the moist non-guaranteed area is different from the prairie quarry and calcareous areas on chestnut soil. Forest prairie area is here only