TEAK PLANTATIONS IN NILAMBUR - Kerala Forest Research Institute

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5. DISCUSSION In this section, a further discussion on the changes in productivity in teak plantations is made. As profitability depends on productivity, the discussion is limited to productivity. 5.1 Changes in productivity For studying the changes in productivity in a crop which takes more than 50 years to mature, it is ideal to get the yield data from the same area in successive rotations. As this is not currently available, using cross-sectional data an attempt has been made here to look at the changes in productivity over time. Table 5.1 shows the distribution of area of teak plantations according to year of planting in Nilambur Divisions classified in different site qualities based on' actual yields. Plantations are grouped at five year intends based on the year of planting sequentially and the mean site quality based on vield obtained is shown as a percentage.
Table : 5.1 Percentage distribution of area of teak plantations according to year of planting in Nilambur Divisions classified in different site qualities based on actual yields Type of Plantation No. of Area Site quality work year plantations (ha.) I I II I III IV Failure 1960 - 64 3 30.600 80 20 1M 1970 - 74 1975 - 79 1980 - 84 6 8 6 264.247 263.920 175.056 100 100 47 0 0 53 . 1985 - 89 . . . . . . . .... . . . . 3 ,. .. ... ... ... . . ... . .... 94.742 "...... 69 31 1955 - 59 2 94.700 0 0 100 1960 - 64 1965 - 69 15 4 628.400 203.540 0 0 100 62 0 38 1970 - 74 5 249.42'1 0 81 '19 1975 - 79 12 572.969 1 0 47 48 157.174 1 1 0 29 71 . . . . . . . . . . . . . . . . . .... . . . .... ............ .................. 497.100 0 100 0 1S 731.763 173.950 400.777 279.810 328.123 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 82 13 0 20 0 18 87 100 80 100 2S 3S 4S FF . . .... . ...... . . . . .. . . . . . . . . ....... .... ..... ..... .... .............. 67.500 436.904 598.327 466.000 113.250 395.027 ........................... 339.100 528.200 605.710 92.230 505.970 ........................... 365.800 654.480 74.980 125.903 135.237 127.246 143.958 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 6 ....................................... . .................. 0 95 5 0 67 21 0 53 12 0 0 0 15 0 0 ........................................ . .................. 91 7 1 45 69 62 0 53 0 ................ . . ...... . ....... 55 31 38 100 47 94 0 0 12 0 25 10 88 12 24 61 0 0 44 0 0 30 70 27 26 38 70 ............ ....... __._................ 74 55 9
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 and 32: ~~~ Table : 3.7 Availability of inf
Page 33 and 34: Table : 3.10 Distribution of area o
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: ha -1 year -1 is considered, the pr
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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