Table of Contents: 1. Introduction. 1.1. Biophysical and geographical descriptions of Myanmar . 1.2. The state of forest management in Myanmar . 1.3. Objectives of the study . 2. Review of Tropical Forest Management Systems. 2.1. Tropical forests of the world 2.2. Deforestation in the tropics 2.3. Sustainable tropical forest management . 2.4. Silvicultural management systems of tropical forests 3. Analysis of Stand Structure and Diversity 3.1. Aspects and scales in quantifying the structure of forest stands 3.2. Whole stand pattern analysis 3.3. Neighbourhood pattern analysis . 3.4. Point pattern analysis 3.5. Empirical data. 3.6. Developing algorithms for calculating variables and functions . 3.7. Results 4. Modelling Individual Tree Diameter Growth of Naturally Grown Teak . 4.1. Review of growth modelling of natural Teak in Myanmar 4.2. Empirical data. 4.3. Analysis of individual tree growth of Teak 4.4. Model development 5. Modelling Stand Development for All Species . 5.1. Stand table projection approach for updating forest inventories 5.2. Aggregating species for stand table projection 5.3. Mortality function. 5.4. Forest inventory data of Paunglaung Watershed 5.5. Developing a spreadsheet model 5.6. Updating the forest Inventories on Paunglaung watershed ii 6. A Yield Regulation System for Sustainable Watershed Management 6.1. Conceptual dilemma . 6.2. Operational problems . 6.3. Tactical elements of the yield regulation system . 6.4. Strategic facets of the yield regulation system . 6.5. Developing a yield regulation system for Paunglaung watershed... 7. Conclusions: 7.1. Analysis of stand structure and diversity . 7.2. Modelling individual tree diameter growth of naturally grown Teak . 7.3. Modelling stand development for all species . . 7.4. A yield regulation system for sustainable watershed management . 8. Summary.. 9. Zusammenfassung .. 10. References..