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Soil formation on reddish-brown calcareous till under herbaceous vegetation during forty years
[摘要]
[发布日期]  [发布机构] 
[效力级别]  [学科分类] 地质学
[关键词] xperimental modelling;primary production;primary pedogenesis;humus-accumulative process;humus quality;soil properties [时效性] 
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