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| Fakitermelési ütemezés× | Stand Density Index× | |
|---|---|---|
| Tudományterület | Erdészettudomány | Erdészettudomány |
| Módszercsalád | Process / pipeline | Process / pipeline |
| Keletkezés éve≠ | 1977 | 1933 |
| Megalkotó≠ | K. Norman Johnson | Louis Reineke |
| Típus≠ | optimization algorithm | density measurement |
| Alapmű≠ | Johnson, K. N., & Scheurman, H. L. (1977). Techniques for prescribing optimal timber harvest and investment under different objectives. Forest Science Monograph 18. link ↗ | Reineke, L. H. (1933). Perfecting a stand-density index for even-aged forests. Journal of Agricultural Research, 46(7), 627–638. link ↗ |
| Alternatív nevek≠ | harvest scheduling, timber rotation, forest planning | SDI, Reineke density index |
| Kapcsolódó | 2 | 2 |
| Összefoglaló≠ | Timber harvest scheduling is an optimization method that determines which forest stands should be harvested and when, to achieve management objectives (economic return, sustained yield, biodiversity, wildlife habitat) while respecting constraints (minimum harvest age, ending inventory level, adjacent-stand restrictions). It integrates growth models, economic data, and spatial forest inventory to generate long-term management plans spanning decades. Harvest scheduling is essential for operational forest management and landscape-level planning. | The Stand Density Index (SDI), introduced by Reineke in 1933, is a dimensionless measure of forest density that accounts for both tree number and size. It expresses the number of trees per hectare in a stand, adjusted to a reference quadratic mean diameter (QMD) of 25 cm, providing a standardized metric for comparing tree density across different forest types and sizes. SDI is widely used in forest management to assess stocking levels and to guide thinning decisions. |
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