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Soil nutrient changes due to land use changes in Northern China: a case study in Zunhua County, Hebei Province 期刊论文
SOIL USE AND MANAGEMENT, 2001, 卷号: 17, 期号: 4, 页码: 294-296
作者:  Fu, BJ;  Guo, XD;  Chen, LD;  Ma, KM;  Li, JR
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