TEAK PLANTATIONS IN NILAMBUR - Kerala Forest Research Institute

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Table : 3.9 Distribution of area of teak plantations in Nilambur Divisions based on known site quality Type of Percentage in different site qualities based on top height * Figures in parenthesis denote distribution based on number of plantations Computed from Ranganathan (1981), Vasudevan (1971) and Appendix : 7 Table 3.10 relates to the same set of plantations as in Table 3.9 but gives the percentage distribution according to different site qualities based on actual yield obtained. Naturally, yields corresponding to the site quality given in the working plan are to be expected. It can be seen that when the actual yield is considered, the corresponding site quality distribution is skewed towards the site quality classes III/IV and IV. The lowest site quality class is IV. However, a substantial percentage of plantations has recorded yields lower than that of site quality IV. Yields which are lower than that expected for site quality IV are therefore indicated hereafter as ‘failure’. 26
Table : 3.10 Distribution of area of teak plantations (having site quality information) according to site qualities based on actual yields obtained in Nilambur Divisions * Figures in parenthesis denote distribution based on number of plantations Computed from Ranganathan (1981) Vasudevan (1971) and Appendix : 7 Table 3.11 shows the site quality observed based on the mean yield of the entire data set as well as the mean in the lowest and highest decile in different operations. Overall, it can be seen that when the mean yield is considered the site quality obtained is only IV. The yield in the lowest decile represents a site quality far below the lowest class and is therefore shown as failure. Even the yield in the highest decile comes up to that expected in site quality class II/III only. Therefore, the best teak plantations in Nilambur which are famous for its teak show a productivity level lower than that of the expected yield in site quality I. 27
Page 1 and 2: KFRI Research Report 144 TEAK PLANT
Page 3 and 4: ' LIST OF TABLES I IRR of teak plan
Page 5 and 6: L Table : 5.6 NPV and B/C ratio at
Page 7 and 8: 1. INTRODUCTION 1.1 Background Teak
Page 9 and 10: on top height alone need not give a
Page 11 and 12: productivity status of teak plantat
Page 13 and 14: in thinning and final felling at a
Page 15 and 16: collected from Chaliyam, Nedumkavam
Page 17 and 18: to compare the actual timber yield/
Page 19 and 20: The percentage distribution was use
Page 21 and 22: a lease rent of Rs.1300 ha-1. This
Page 23 and 24: The total number of plantations (op
Page 25 and 26: During the period 1967 to 1981, the
Page 27 and 28: identified. Site quality class I is
Page 29 and 30: Age 20 Table : 3.6 Total yield and
Page 31: ~~~ Table : 3.7 Availability of inf
Page 35 and 36: Plng. Year 1934 1934 1934 1938 1939
Page 37 and 38: 4. PROFITABILITY OF TEAK PLANTATION
Page 39 and 40: from younger plantations have a low
Page 41 and 42: Table : 4.2 Cashflow from teak plan
Page 43 and 44: flow from teak plantations in Nilam
Page 45 and 46: ha -1 year -1 is considered, the pr
Page 47 and 48: Table : 5.1 Percentage distribution
Page 49 and 50: Table : 5.2 Percentage distribution
Page 51 and 52: Table : 5.5 Sensitivity analysis of
Page 53 and 54: average profitability of teak plant
Page 55 and 56: KFRI., 1977. Productivity of teak a
Page 57 and 58: Division &. Range Nilambur Nilambur
Page 59 and 60: Division & Range Nilambur Nilambur
Page 61 and 62: Division & Range Karulai Karulai Ka
Page 63 and 64: Appendix : 2 Division-wise distribu
Page 65 and 66: Appendix : 5 Expected yields from t
Page 67 and 68: ~ Appendix : 7 List of plantations
Page 69 and 70: Appendix : 8 Number of teak poles e
Page 71 and 72: Appendix : 10 Percentage distributi
Page 73 and 74: Type of work 4 Silvi. thinning Lora
Page 75: Type of work 4 Silvi. thinning Lora

TEAK PLANTATIONS IN NILAMBUR - Kerala Forest Research Institute

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