Revista Chapingo Serie Ciencias Forestales y del Ambiente
Universidad Autónoma Chapingo
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Volume XXIV, issue 1, - 2018

Densidad máxima y diagrama de manejo de la densidad para bosques mezclados de Durango, México
Maximum density and density management diagram for mixed-species forests in Durango, Mexico

Gerónimo Quiñonez-Barraza; Juan C. Tamarit-Urias; Martín Martínez-Salvador; Xavier García-Cuevas; Héctor M. De los Santos-Posadas; Wenceslao Santiago-García

Received: 2017-09-12

Accepted: 2017-11-14

Available online: 2017-12-22 / pages.73-90


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  • descriptionAbstract

    Introduction: Stand density affects productivity and the structure and functions of forests.Objectives: To compare maximum density lines for mixed-species forests adjusted with Ordinary least Squares (OLS) and Stochastic Frontier Regression (SFR); and generate a density management diagram (DMD) to prescribe thinning.Materials and methods: The data was obtained in mixed-species stands from the Forest Management Unit 1005 “Santiago Papasquiaro y Anexos” in Durango, Mexico. The density-size relationship was established using the Reineke’s model. The maximum density line was adjusted with OLS and SFR, the latter with the half-normal (H-N), normal-exponential (N-E) and normal-truncated (N-T) approaches. The DMD was constructed with the SFR equation with the normal-truncated distribution approach.Results and discussion: The maximum density line, modeled through SFR with N-T approach showed better fit to the upper limit of the maximum density of the mixed-species stand data. DMD suggests that thinning for these stands can be applied with high cutting intensities, contrary to conventional practices, where rarely more than 30 % of the basal area or volume is cut.Conclusion: The maximum density line for mixed-species forests in Durango, Mexico, was generated with stochastic frontier regression, as a normal-truncated model.

    Keyworks: Self-thinning, growth space, Stand Density Index, stochastic frontier regression, Reineke

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  • starCite article

    Quiñonez-Barraza, G., Tamarit-Urias, J. C.,  Martínez-Salvador, M., García-Cuevas, X., De los Santos-Posadas, H. M.,  &  Santiago-García, W. (2018).  Maximum density and density management diagram for mixed-species forests in Durango, Mexico. , XXIV(1), 73-90.

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