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cje ›› 1989, Vol. ›› Issue (6): 44-47.

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Ecolomic Problems on the Utilization of Water Resources in Ningxia Autonomous Region

Lu Lachang   

  1. Department of Geography, Shanxi Normal University
  • Received:1988-08-28 Revised:1988-10-24 Online:1989-12-10

Abstract: Problems on the utilization of Water resources in Ningxia Autonomous Region are analyzed from the viewpoint of ecology, and some ideas are put forward for their rational utilization.

Key words: Tree nutrition, Nitrate, Ammonium, Rhizosphere pH