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cje ›› 1990, Vol. ›› Issue (1): 60-61.

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A general formula for determining leaf area of a kind of broad-leaved trces

Ma Liangqing   

  1. Forestry Bureau of Chongqing Municipality
  • Received:1988-11-20 Online:1990-02-10

Abstract: Based on observations and measurements,a leaf morphological equation of a kind of broad-leaved trees is proposed,by integration of which,a general formula is obtained for calcu-lating the loaf area of this kind of broad leaved trees.The formula is simple,convenientand highly accurate.

Key words: Ecosystem health, Assessment, Mode ecosystem set, Health distance, Index system