但紫色土成土母岩结构疏松，易风化，抗蚀性低；
But the structure of purple soil parent material is loose and easy to efflorescent, anti-erodibility;
结果：广西莪术道地产区的分布受GBS的制约，广西莪术最适宜的地质背景为沙岩和页岩混合型黄红壤区。结论：广西莪术道地产区土壤受其成土母质影响；
Results:The genuine producing area of Curcuma Kwangsiensis was showed to be influenced by GBS, and the most suitable GBS was red soil mixed with shale.
结果：广西莪术道地产区的分布受GBS的制约，广西莪术最适宜的地质背景为沙岩和页岩混合型黄红壤区。结论：广西莪术道地产区土壤受其成土母质影响；
Results:The genuine producing area of Curcuma Kwangsiensis was showed to be influenced by GBS, and the most suitable GBS was red soil mixed with shale.
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