Agroforestry Systems

, Volume 25, Issue 3, pp 243–262 | Cite as

Diversity, structure and standing stock of wood in the homegardens of Kerala in peninsular India

  • B. Mohan Kumar
  • Suman Jacob George
  • S. Chinnamani


A survey was conducted in 17 selectedthaluks (revenue sub-divisions) of Kerala state to elucidate the floristic structure, composition and the extent of similarities and diversities in the composition of homegardens of Kerala, with particular reference to small (below 0.4 ha), medium (0.5 to 2 ha) and large (>2.0 ha) holding size categories. Besides attempts wer also made to characterize the potential of homegardens to supply commercial timber and fuelwood. Two hundred and fifty two farmers were selected through a stratified random process. In addition to gathering general information on crop and livestock production enterprises, all scattered trees and shrubs (≥15 cm girth at breast height) on the homestead and border trees except palms and rubber were enumerated.

There was tremendous variability both in the number of trees and shrubs present and species diversity of the selected homesteads in different provinces. The small, medium and large sized holdings also exhibited profound variability in the number of woody taxa and individuals present. In total, 127 woody species (Girth at Breast Height (GBH) ≥15 cm) were encountered. The mean number of woody taxa found in the homegardens ranged from 11 for Pathanapuram to 39 in Perinthalmanna. Floristic diversity was higher in the smaller homesteads. It decreased with increasing the size of holdings. Mean Simpson's diversity index for the homesteads ranged from 0.251 (Kochi) to 0.739 (Kottarakkara) suggesting that floristic diversity of homegardens was moderate to low compared to a value over 0.90 for the species-rich evergreen forests of the Western Ghats. The Sorensen's similarity indexes suggested a moderately high degree of similarity for the different tree species encountered in the homesteads of Kerala.

No clear cut planting pattern was discernible in the homegardens of Kerala. The homegarden trees and shrubs were either scattered throughout the homestead or on farm boundaries. Farmers tend to prefer timber trees such as ailanthus (highest frequency) and teak besides fruit trees such as mango, jack, cashew and the like. Major homegarden species were represented in all diameter classes. The diameter structure, however, exhibited a slightly skewed (+) distribution pattern, having the highest frequency in the 20–30 cm classes ensuring adequate regeneration status and in that process making homegardens a sustainable as well as dynamic land use system.

Standing stock of timber and firewood in the homestead of differentthaluks are presented. Average commercial standing stock of homesteads ranged from 6.6 to 50.8 m3 ha−1 and fuel wood volume was of the order of 23 to 86 m3 ha−1. Implicit in the high commercial timber volume and fuel wood volume is that a substantial proportion of the society's wood demands are met from the homesteads. Palms, however, constituted the dominant component of standing commercial timber and fuel wood volumes accounting as much as 63% and 72%, respectively, of the total wood in these categories.

Key words

diameter distribution standing wood stock floristic diversity homegardens planting geometry structure kerala India 


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  1. Babu KS, Jose D and Gokulapalan C (1982) Species diversity in a Kerala homegarden. Agroforestry Today 4(3): 15Google Scholar
  2. George SJ, Mohan Kumar B and Rajiv GR (1993) Nature of secondary succession in the abandoned Eucalyptus plantations of Neyyar (Kerala) in the peninsular India. Trop For Sci 5(3): 372–386Google Scholar
  3. Jose D (1992) Structure and productivity of the homegardens of Kerala: a case study. In: Nair CGR, ed. Proc Fourth Kerala Science Congress, February 1992, Thrissur pp 17–19. Science, Technology and Environment Department, Government of Kerala, Thiruvananthapuram, IndiaGoogle Scholar
  4. Kerala Agricultural University (KAU) (1989) NARP Status Report, Vol III, southern zone. Kerala Agricultural University, Vellanikkara, India, 34 ppGoogle Scholar
  5. Krishnankutty CN (1990) Demand and supply of wood in Kerala and their future trends, KFRI Research Report 67, Kerala Forest Research Institute, Peechi 680 652, India, 66 ppGoogle Scholar
  6. Michon G, Bompard J, Hecketseiler P and Ducatillion C (1983) Tropical forest architectural analysis as applied to agroforests in the humid tropics: the example of traditional village agroforests in West Java. Agroforestry Systems 1: 117–129Google Scholar
  7. Nair MA and Sreedharan C (1986) Agroforestry farming systems in the homesteads of Kerala, Southern India. Agroforestry Systems 4: 339–363Google Scholar
  8. Nair NR (1971) Commercial volume tables for the forest trees of Kerala. Kerala State Forest Department, Thiruvananthapuram, 41 ppGoogle Scholar
  9. Nair PKR and Dagar JC (1991) An approach to developing methodologies for evaluating Agroforestry systems in India. Agroforestry Systems 16: 55–81Google Scholar
  10. Padoch C and de Jong W (1991) The house gardens of Santa Rosa: Diversity and variability in an amazonian agricultural systems. Econ Bot 45(2): 166–175Google Scholar
  11. Pascal JP (1988) Wet ever green forests of the Western Ghats of India, French Institute, Pondicherry, India, 343 ppGoogle Scholar
  12. Rico-Gray V, Garcia-Franco JG, Chemas A, Puch A and Sima P (1990) Species composition, similarity and structure of mayan Homegardens in Tixpeual and Tixcacaltuyub, Yucatan, Mexico. Econ Bot 44(4): 470–487Google Scholar
  13. Rico-Gray V, Chemas A and Mandujano S (1991) Uses of tropical deciduous forest species by the Yucatecan Maya. Agroforestry Systems 14: 149–161Google Scholar
  14. Shannon CE and Wiener W (1963) The Mathematical Theory of Communication. Urbana University Press, IL, USAGoogle Scholar
  15. Simpson EH (1949) Measurement of diversity, Nature 163: 688Google Scholar
  16. Singh GB (1987) Agroforestry in the Indian Sub continent; past, present and future. In: Steppler HA and Nair PKR, eds, Agroforestry: A Decade of Development, pp 117–140. ICRAF, Nairobi, KenyaGoogle Scholar
  17. Soemarwoto O (1987) Homegardens: a traditional agroforestry system with a promising future. In: Steppler HA and Nair PKR, eds, Agroforestry: A Decade of Development, pp 157–172. ICRAF, Nairobi, KenyaGoogle Scholar
  18. Soemarwoto O and Conway GR (1991) The Javanese homegardens. J Farming Systems Res Extension, 2(3): 95–117Google Scholar
  19. Sorenson T (1948) A method of establishing groups of equal amplitude on similarity of species content. Biologiske Skrifter K. Danske Videnskbernes Selskab 5(4): 1–34Google Scholar
  20. Thaman RR (1988) By the people and for the people: Homegardening and national development in the Pacific islands. In: Hirst J, Overton J, Allen B and Byron Y, eds, Small Scale Agriculture, pp 167–181. Australian National University, Canberra, AustraliaGoogle Scholar

Copyright information

© Kluwer Academic Publishers 1994

Authors and Affiliations

  • B. Mohan Kumar
    • 1
    • 2
  • Suman Jacob George
    • 2
  • S. Chinnamani
    • 1
    • 3
  1. 1.All India Co-ordinated Research Project on AgroforestryVellanikkaraIndia
  2. 2.College of ForestryKerala Agricultural UniversityVellanikkaraIndia
  3. 3.Indian Council of Agricultural ResearchNew DelhiIndia

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