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Research on Integration of Different Types Forest Growth and Yield Models

Author: DengCheng
Tutor: LvYong
School: Central South University of Forestry Science and Technology
Course: Forest Management
Keywords: Forest growth simulation Growth and harvest model Stand structure model Model holistic Model coupling
CLC: S750
Type: Master's thesis
Year: 2009
Downloads: 68
Quote: 0
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Abstract


Stand growth and harvest model is an objective estimate of the growth of the stand, an important means of harvest, forest management workers operating guidelines of the forest. But model a wide range of forms, the different models to simulate the same factor but may be inconsistent, and this has brought a lot of difficulties for growth harvest model actual production. Therefore, the study of stand growth and harvest model integration helps the system understand the single wooden stand natural growth pattern of various growth and understanding the difference and connection between the harvest model, the compatibility between the different levels of model for solving and consistency issues of great significance, and to help improve the biological significance of the model, each model has better explanatory and more general applicability, and thus better able to model various growth harvest theory research and actual production combined to guide forestry production. Stand growth and harvest the whole idea of ??the model proposed by analyzing the overall concept and connotation of stand growth and harvest model. Pinus massoniana Plantation and the object of its kind to survey data, EXCEL and SPSS software for the calculation and analysis platform, the use of forest mensuration principle overall study of the various models. The study mainly includes four sections: single wood factor (diameter D, height H, basal area G, Volume V, etc.) the coupling between growth and harvest model; single wood Factor growth and harvesting models and stand factors (average diameter Dg, average height H, the basal area G0 M accumulation) coupling between growth and harvest model; coupling between the Stand factor of growth and harvest model; stand growth model with stand diameter distribution model coupling. Achieved by studying various models overall, and the series overall stand growth and harvest model. These models contain most closely related to the status of stand growth index, stand density, stand age, and other factors, the the better biological significance and interpretability. These models are generalized stand growth and harvest forecast model, different regions and different species, as long as the collection of sample data, you can establish and derive appropriate to the region, the species of a whole range of stand growth and harvest prediction model, these models can simultaneously estimate realistic stand and stand various factors, has broader applicability. Applicability test and accuracy of these models, we can see the whole stand growth and harvest forecast model has good applicability and high accuracy.

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CLC: > Agricultural Sciences > Forestry > Forest management,forest measurement science, forest management > Of forest management
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