如何实现生态的良性循环——甘肃省中部干旱地区的现状及形成的历史教训和发展途径初探
杨安民
HOW TO REALIZE A BENEFICIAL ECOLOGICAL CYCLE——A PRELIMINARY STUDY ON THE CURRENT SITUATION, HISTORICAL LESSONS OF FORMATION AND DEVELOPMENTAL WAYS OF ARID REGIONS IN CENTRAL GANSU
Yang Anmin
生态学杂志
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1984, (4): 36
-40
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