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cje ›› 1984, Vol. ›› Issue (4): 36-40.

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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   

  1. Policy Research Section, Gansu Provincial Party Committee
  • Received:1983-04-25 Online:1984-08-10

Abstract: This paper describes the history, current situation, problems and lessons of arid regions in Central Gansu, and puts forward the way out and the direction of their development.

Key words: Variograms, Ordinary Kriging, Nilaparvata lugens, Spatial structure