对“密度指数与林分测树因子数学模型”的商榷*

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Scientia Silvae Sinicae ›› 1996, Vol. 32 ›› Issue (3): 269-273.

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SOME POINTS ON "MATHEMATICAL MODELS OF DENSITY INDEX AND FOREST STAND CHARACTERISTICS"

Weisheng Zeng

South Central Forest Inventory & Planning Institute Changsha 410014

Received:1994-09-07 Online:1996-05-25 Published:1996-05-25

Abstract

Abstract:

To counter the problems to "the mathematical models of density index and stand characteristics ", the models about stand density index (SDI), basal area, mean diameter and stems are presented mathematically in this paper, and the parameter estimation procedure is also provided. Further more, it is pointed out that we should pay move attention to dual regression and consistent estimation for fitting mathematical models.

Key words: SDI, Mathematical model, Dual regression, Multistage regression, Consistent estimation

Weisheng Zeng. SOME POINTS ON "MATHEMATICAL MODELS OF DENSITY INDEX AND FOREST STAND CHARACTERISTICS"[J]. Scientia Silvae Sinicae, 1996, 32(3): 269-273.

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SOME POINTS ON "MATHEMATICAL MODELS OF DENSITY INDEX AND FOREST STAND CHARACTERISTICS"

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