近自然林业生态丰产机理与生产应用模式探讨

对国内外不同类型林分近自然经营生长特性与近自然林业经营技术机理进行分析，探讨近自然林业生态丰产原理和近自然林业生态丰产人工促进经营措施。研究认为，近自然林业生态丰产机理是依据森林系统中个体竞争、自然选择、林隙更新、合理空间分布与材积生长规律原理，综合优化组合林木个体各生长阶段速生性与合理时空分布，使林分个体在各自不同生长期处于最佳生长状态，实现林分生长量在合理经营期中达到最大化。系统研究近自然林业生态丰产机理，命名为“近自然林业生态丰产理论”，并提出我国不同林分类型近自然林业生态丰产培育模式。

Study on Ecology and High Yield Mechanisms of Close-to-Nature Forestry and the Corresponding Production and Application Models

The growth feature of different types of forest stands managed under close to nature forestry theory both in China and abroad and the technical mechanisms of the theory were analyzed.The ecological and high yield principles of the close to nature forestry theory and the corresponding countermeasures to artificially promote the close to nature forestry management for ecology and high yield purposes were discussed. It was regarded that the ecology and high yield mechanisms of the close to nature forestry were based on the principles of individual competition, natural selection,forest gap regeneration, reasonable space distribution and the growth rule of the timber volume. The purpose of the management was to optimize and integrate each growth stage of the individuals to pursue the rationally temporal and spatial distribution, to realize the best growth state of each individual in the stands at different growth phases so as to achieve the maximization of the whole stand′s growth within the reasonable management stage. The theory of ecology and high yield close to nature forestry was named on the basis of systematical study on the mechanisms of the theory. Some cultivation models of different types of forest stands in China were put forward based on the management theory of ecology and high yield close to nature forestry.