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Changes in medicinal crop production in the urban shadow of Beijing metropolis under agricultural structure adjustment : a case study of Zhengzhang Village, Hebei Province, China
(supprimer)
Changes in medicinal crop production in the urban shadow of Beijing metropolis under agricultural structure adjustment : a case study of Zhengzhang Village, Hebei Province, China
Agricultural land use ; Agricultural production ; Agriculture ; China ; Farm ; Hebei ; Village