Journal of Ecology and Environment

The Ecological Society of Korea (한국생태학회)
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Population structure and regeneration of Zanthoxylum armatum DC. in Salyan, Nepal

  • Received : 2022.02.07
  • Accepted : 2022.03.23
  • Published : 2022.06.30
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Abstract

Background: Zanthoxylum armatum is one of the 30 prioritized medicinal plants for economic development of Nepal with a high trade value. Understanding the ecology of individual species is important for conservation and cultivation purposes. However, relation of ecological factors on the distribution and populations of Z. armatum in Nepal remain unknown. To address this knowledge gap, an attempt has been made to study the population structure, distribution, and regeneration potentiality of Z. armatum. Vegetation sampling was conducted at six different localities of Salyan district along the elevation range of 1,000 m to 2,000 m. Results: Altogether 50 plant species belonging to 44 genera under 34 families were found to be associated with Z. armatum. Significantly higher species richness was found at Rim (1,400-1,700 m) and Chhatreshwori (1,800-2,000 m) and lower at Kupinde (1,600-1,800 m). The highest population density of Z. armatum was at Kupinde (1,600-1,800 m) with a total of 1,100 individuals/ha. and the lowest at Chhatreshwori (1,800-2,000 m) with 740 individuals/ha. Based on the A/F value (Whitford index), it can be said that Z. armatum has random distribution in the study area. The plants were categorized into seedlings, saplings and adults based on plant height and the status of natural regeneration category determined. The regeneration potentiality of Z. armatum in the study area was fair with the average seedlings and saplings densities of 150 and 100 individuals/ha. Respectively. A Shannon-Weinner index mean value of 2.8 was obtained suggesting high species diversity in the study area. Conclusions: The natural distribution and regeneration of Z. armatum is being affected in the recent years due to anthropogenic disturbances. Increasing market demand and unsustainable harvesting procedures are posing serious threat to Z. armatum. Thus, effective conservation and management initiatives are most important for conserving the natural population of Z. armatum in the study area.

Keywords

Acknowledgement

We are thankful to Mr. Krishna Pun from District Plant Resources Office, Salyan for his help during the field work. Special thanks to Prof. Dr. Ram Kailash Prasad Yadav, Head, Central Department of Botany, Tribhuvan University for his encouragement.

References

  1. Adekunle VAJ, Olagoke AO, Akindele SO. Tree species diversity and structure of a Nigerian strict nature reserve. Trop Ecol. 2013;54(3):275-89.
  2. Bakkenes M, Alkemade JRM, Ihle F, Leemans R, Latour JB. Assessing effects of forecasted climate change on the diversity and distribution of European higher plants for 2050. Glob Chang Biol. 2002;8(4):390-407. https://doi.org/10.1046/j.1354-1013.2001.00467.x.
  3. Bhadra AK, Pattanayak SK. Abundance or dominance: which is more justified to calculate importance value index (IVI) of plant species? Asian J Sci Technol. 2016;7(9):3577-601.
  4. Bhandari BS, Nautiyal DC, Gaur RD. Structural attributes and productivity potential of an alpine pasture of Garhwal Himalaya. J Indian Bot Soc. 1999;78:321-9.
  5. Bhuyan P, Khan M, Tripathi R. Tree diversity and population structure in undisturbed and human-impacted stands of tropical wet evergreen forest in Arunachal Pradesh, Eastern Himalayas, India. Biodivers Conserv. 2003;12:1753-73. https://doi.org/10.1023/A:1023619017786.
  6. Brown JH. Species diversity. In: Myers AA, Giller PS, editors. Analytical biogeography: an integratead approach to the study of animal and plant distribution. New York: Chapman and Hall; 1988. p. 57-89.
  7. Buffum B, Gratzer G, Tenzin Y. The sustainability of selection cutting in a late successional broadleaved community forest in Bhutan. For Ecol Manag. 2008;256(12):2084-91. https://doi.org/10.1016/j.foreco.2008.07.031.
  8. Chadha YR. The wealth of India- raw materials series. New Delhi: Council of Scientific and Industrial Research; 1976.
  9. Curtis JT, Cottam G. Plant ecology work book: laboratory, field and reference manual. Minneapolis: Burgess; 1956.
  10. DFRS. Forest cover maps of local levels (754) of Nepal. (Vol VI: forest cover maps of Karnali province). Kathmandu: Ministry of Forests and Soil Conservation, Nepal, Government of Nepal; 2018.
  11. Dhar U, Rawal RS, Samant SS. Structural diversity and representativeness of forest vegetation in a protected area of Kumaun Himalaya, India: implications for conservation. Biodivers Conserv. 1997;6:1045-62. https://doi.org/10.1023/A:1018375932740.
  12. DPR. Herbs and non timber forests products policy. Kathmandu: Department of Plant Resources, Ministry of Forest and Soil Conservation, Government of Nepal; 2004.
  13. DPR. [Nepal Ko Aarthik Bikaska Lagi Prathamikta Prapta Jadibutiharu]. Kathmandu: Department of Plant Resources, Ministry of Forest and Soil Conservation. Government of Nepal; 2006. Nepali.
  14. DPR. Medicinal plants of Nepal (Revised edition). Kathmandu: Department of Plant Resources, Ministry of Forests and Soil Conservation, Government of Nepal; 2007.
  15. Gaines WL, Harrod RJ, Lehmkuhl JF. Monitoring biodiversity: quantification and interpretation. General Technical Report PNW-GTR-443. Portland: U.S. Department of Agriculture, Forest Service, Pacific Northwest Research Station; 1999.
  16. Gairola S, Rawal RS, Todaria NP. Forest vegetation patterns along an altitudinal gradientin sub-alpine zone of west Himalaya, India. Afr J Plant Sci. 2008;2(6):42-8.
  17. Gangwar RS, Joshi BD. Some medicinal flora in the riparian zone of river Ganga at Saptrishi, Haridwar, Uttaranchal. Himal J Environ Zool. 2006;20(2):237-41.
  18. Giliba RA, Boon EK, Kayombo CJ, Musamba EB, Kashindye AM, Shayo PF. Species composition, richness and diversity in miombo woodland of Bereku forest reserve, Tanzania. J Biodivers. 2011;2(1):1-7. https://doi.org/10.1080/09766901.2011.11884724.
  19. GoN. Forest act, 2049. Kathmandu: Ministry of Forest and Soil Conservation of Government of Nepal; 1993.
  20. GoN. Forest rules, 2051. Kathmandu: Ministry of Forests and Soil Conservation, Government of Nepal; 1995.
  21. GoN. Industrial enterprises act, 1992. Kathmandu: Ministry of Industries, Government of Nepal; 1992.
  22. GoN. Trade policy. Kathmandu: Ministry of Commerce and Supplies, Government of Nepal; 2009.
  23. Grime J. Competitive exclusion in herbaceous vegetation. Nature. 1973;242(5396):344-7. https://doi.org/10.1038/242344a0.
  24. Grubb PJ. The maintenance of species-richness in plant communities: the importance of the regeneration niche. Biol Rev. 1977;52(1):107-45. https://doi.org/10.1111/j.1469-185X.1977.tb01347.x.
  25. Gupta PK. Methods in environmental analysis water soil and air. Jodhpur: Agrobios; 2000.
  26. Henle K, Lindenmayer DB, Margules CR, Saunders DA, Wissel C. Species survival in fragmented landscapes: where are we now? Biodivers Conserv. 2004;13:1-8. https://doi.org/10.1023/B:BIOC.0000004311.04226.29.
  27. Hitimana J, Kiyiapi JL, Njunge JT. Forest structure characteristics in disturbed and undisturbed sites of Mt. Elgon Moist Lower Montane Forest, western Kenya. For Ecol Manag. 2004;194(1-3):269-91. https://doi.org/10.1016/j.foreco.2004.02.025.
  28. Husch B, Beers TW, Kershaw Jr JA. Forest mensuration. 4th ed. New York: John Wiley & Sons; 2002.
  29. Junaedi DI, Nurlaeni Y. Ecology of Zanthoxylum acanthopodium: specific leaf area and habitat characteristics. Biodiversitas. 2019;20(3):732-7. https://doi.org/10.13057/biodiv/d200317.
  30. Kala CP, Mathur V. Patterns of plant species distribution in the trans-Himalayan region of Ladakh, India. J Veg Sci. 2002;13:751-4. https://doi.org/10.1111/j.1654-1103.2002.tb02104.x.
  31. Kala CP. Assessment of availability and patterns in collection of Timroo (Zanthoxylum armatum DC.): a case study of Uttarakhand Himalaya. Med Plants. 2010;2(2):91-6. https://doi.org/10.5958/j.0975-4261.2.2.014.
  32. Kala CP. Ethnomedicinal botany of the Apatani in the Eastern Himalayan region of India. J Ethnobiol Ethnomed. 2005;1:11. https://doi.org/10.1186/1746-4269-1-11.
  33. Khan H, Marwat K, Hassan MG, Khan MA, Hashim S. Distribution of Parthenium weed in Peshawar valley, khyber Pakhtunkhwa- Pakistan. Pak J Bot. 2014;46(1):81-90.
  34. Khan ML, Rai JPN, Tripathi RS. Population structure of some tree species in disturbed and protected subtropical forests of North-East India. Acta Oecol Oecol Appl. 1987;8(3):247-55.
  35. Khumbongmayum AD, Khan ML, Tripathi RS. Biodiversity conservation in sacred groves of Manipur, Northeast India: population structure and regeneration status of woody species. Biodivers Conserv. 2006;15:2439. https://doi.org/10.1007/s10531-004-6901-0.
  36. Kilewa R, Rashid A. Distribution of invasive weed Parthenium hysterophorus in Natural and agro-ecosystems in Arusha Tanzania. Int J Sci Res. 2014;3(12):1724-7.
  37. Kunwar RM, Acharya RP, Chowdhary CL, Bussmann RW. Medicinal plant dynamics in indigenous medicines in farwest Nepal. J Ethnopharmacol. 2015;163:210-9. https://doi.org/10.1016/j.jep.2015.01.035.
  38. Loreau M, Naeem S, Inchausti P, Bengtsson J, Grime JP, Hector A, et al. Biodiversity and ecosystem functioning: current knowledge and future challenges. Science. 2001;294(5543):804-8. https://doi.org/10.1126/science.1064088.
  39. Manandhar NP. Plants and people of Nepal. Portland: Timber Press; 2002.
  40. Master Plan for the Forestry Sector Project (Nepal). Master plan for the forestry sector Nepal. Kathmandu: Government of Nepal; 1988.
  41. Misra R. Ecology workbook. Calcutta: Oxford and IBH Publishing; 1968.
  42. Murkherjee S, Chaturvedi SS. Utilization aspects of floral non-timber forest products: a review. Asian J Multidiscip Stud. 2017;5(4):161-6.
  43. Muthulingam U, Thangavel S. Density, diversity and richness of woody plants in urban green spaces: a case study in Chennai metropolitan city. Urban For Urban Green. 2012;11(4):450-9. https://doi.org/10.1016/j.ufug.2012.08.003.
  44. Naidu MT, Kumar OA. Tree diversity, stand structure, and community composition of tropical forests in Eastern Ghats of Andhra Pradesh, India. J Asia Pac Biodivers. 2016;9(3):328-34. https://doi.org/10.1016/j.japb.2016.03.019.
  45. Nair KN, Nayar MP. Rutaceae. In: Hajra PK, Nair VJ, Daniel P, editors. Flora of India. Vol. 4 (Malpighiceae - Dichapetalaceae). Calcutta: Botanical Survey of India; 1997.
  46. Nkoa R, Owen M, Swanton C. Weed abundance, distribution, diversity, and community analyses. Weed Sci. 2015;63(1):64-90. https://doi.org/10.1614/WS-D-13-00075.1.
  47. NPC. Review of national conservation strategy (NCS 1988). Kathmandu: National Planning Commission, Government of Nepal; 1988.
  48. Nur A, Nandi R, Jashimuddin M, Hossain MA. Tree species composition and regeneration status of Shitalpur forest beat under Chittagong North Forest division, Bangladesh. Adv Ecol. 2016;2016:5947874. https://doi.org/10.1155/2016/5947874.
  49. Panthi MP, Chaudhary RP, Vetaas OR. Plant species richness and composition in a trans-Himalayan inner valley of Manang district, central Nepal. Himal J Sci. 2007;4(6):57-64.
  50. Phuyal N, Jha PK, Prasad Raturi P, Rajbhandary S. Zanthoxylum armatum DC.: current knowledge, gaps and opportunities in Nepal. J Ethnopharmacol. 2019;229:326-41. https://doi.org/10.1016/j.jep.2018.08.010.
  51. Phuyal N, Jha PK, Raturi PP, Gurung S, Rajbhandary S. Effect of growth hormone and growth media on the rooting and shooting of Zanthoxylum armatum stem cuttings. Banko Janakari. 2018;28(2):3-12. https://doi.org/10.3126/banko.v28i2.24183
  52. Phuyal N, Jha PK, Raturi PP, Rajbhandary S. Comparison between essential oil compositions of Zanthoxylum armatum DC. fruits grown at different altitudes and populations in Nepal. Int J Food Prop. 2020;23(1):1971-8. https://doi.org/10.1080/10942912.2020.1833032.
  53. Pokhriyal P, Uniyal P, Chauhan DS, Todaria NP. Regeneration status of tree species in forest of Phakot and Pathri Rao watersheds in Garhwal Himalaya. Curr Sci. 2010;98(2):171-5.
  54. R Core Team. R: a language and environment for statistical computing. Vienna: R Foundation for Statistical Computing; 2020.
  55. Rawat VS, Chandhok A. Phytosociological analysis and distribution patterns of tree species: a case study from Govind Pashu Vihar, National Park, Uttarakhand. New York Sci J. 2009;2(4):58-63.
  56. Reich PB, Bakken P, Carlson D, Frelich LE, Friedman SK, Grigal DF. Influence of logging, fire, and forest type on biodiversity and productivity in southern boreal forests. Ecology. 2001;82(10):2731-48. https://doi.org/10.1890/0012-9658(2001)082[2731:IOLFAF]2.0.CO;2.
  57. Saha S, Rajwar GS, Kumar M. Forest structure, diversity and regeneration potential along altitudinal gradient in Dhanaulti of Garhwal Himalaya. For Syst. 2016;25(2):e058. https://doi.org/10.5424/fs/2016252-07432.
  58. Saikia P, Khan ML. Population structure and regeneration status of Aquilaria malaccensis Lam. in homegardens of Upper Assam, northeast India. Trop Ecol. 2013;54(1):1-13.
  59. Samant SS, Dhar U, Rawal RS. Biodiversity status of a protected area in West Himalaya: Askot Wildlife Sanctuary. Int J Sustain Dev World Ecol. 1998;5(3):194-203. https://doi.org/10.1080/13504509809469983.
  60. Saravanan R, Sujana KA, Kannan D. Phytodiversity analysis of tree species of Kuldiha Wildlife Sanctuary (KWLS), Odisha, India. J Appl Life Sci Int. 2019;22(4):1-14. https://doi.org/10.9734/jalsi/2019/v22i430132.
  61. Saxena AK, Singh JS. Tree population structure of certain Himalayan forest associations and implications concerning their future composition. Vegetatio. 1984;58:61-9. https://doi.org/10.1007/BF00044928.
  62. Schemske DW, Husband BC, Ruckelshaus MH, Goodwillie C, Parker IM, Bishop JG. Evaluating approaches to the conservation of rare and endangered plants. Ecology. 1994;75(3):585-606. https://doi.org/10.2307/1941718.
  63. Schuster B, Diekmann M. Species richness and environmental correlates in deciduous forests of Northwest Germany. For Ecol Manag. 2005;206(1-3):197-205. https://doi.org/10.1016/j.foreco.2004.10.063.
  64. Shaheen H, Khan SM, Harper DM, Ullah Z, Qureshi RA. Species diversity, community structure, and distribution patterns in western Himalayan alpine pastures of Kashmir, Pakistan. Mt Res Dev. 2011;31(2):153-9. https://doi.org/10.1659/MRD-JOURNAL-D-10-00091.1.
  65. Shannon CE, Weaver W. The mathematical theory of communication. Urbana: University of Illinois Press; 1963.
  66. Shibru S, Balcha G. Composition, structure and regeneration status of woody species in Dindin natural forest, Southeast Ethiopia: an implication for conservation. Ethiop J Biol Sci. 2004;1(3):15-35.
  67. Shrestha KB, Maren IE, Arneberg E, Sah JP, Vetaas OR. Effect of anthropogenic disturbance on plant species diversity in oak forests in Nepal, Central Himalaya. Int J Biodivers Sci Ecosyst Serv Manag. 2013;9(1):21-9. https://doi.org/10.1080/21513732.2012.749303.
  68. Simpson EH. Measurement of diversity. Nature. 1949;163:688. https://doi.org/10.1038/163688a0.
  69. Singh B, Rawat JMS. Effects of cutting types and hormonal concentration on vegetative propagation of Zanthoxylum armatum in Garhwal Himalaya, India. J For Res. 2017;28(2):419-23. https://doi.org/10.1007/s11676-016-0286-2.
  70. Singh JS, Singh SP. Forest vegetation of the Himalaya. Bot Rev. 1987;53:80-192. https://doi.org/10.1007/BF02858183.
  71. Singh JS, Singh SP. Forests of Himalaya: structure, functioning and impact of man. Nainital: Gyanodaya Prakashan; 1992.
  72. Singh OJ, Raleng I, Premchand M, Debashree N. A review on the pharmacological profiles of Zanthoxylum armatum DC (Rutaceae). J Evol Res Med Pharmacol. 2016;2(1):10-2.
  73. Stevens GC. The elevational gradient in altitudinal range: an extension of Rapoport's latitudinal rule to altitude. Am Nat. 1992;140(6):893-911. https://doi.org/10.1086/285447.
  74. Sundriyal R, Sharma E. Anthropogenic pressure on tree structure and biomass in the temperate forest of Mamlay watershed in Sikkim. For Ecol Manag. 1996;81(1-3):113-34. https://doi.org/10.1016/0378-1127(95)03657-1.
  75. Sunil C, Somashekar RK, Nagaraja BC. Impact of anthropogenic disturbances on riparian forest ecology and ecosystem services in Southern India. Int J Biodivers Sci Ecosyst Serv Manag. 2011;7(4):273-82. https://doi.org/10.1080/21513732.2011.631939.
  76. Tang KL. The characteristics and control methods of soil erosions in Loess Plateau. Beijing: China Science and Technology Press; 1990.
  77. Tilman D, Pacala S. The maintenance of species richness in plant communities. In: Ricklefs RE, Schluter D, editors. Species diversity in ecological communities: historical and geographical perspectives. Chicago: University of Chicago Press; 1993.
  78. Trivedy RK, Goel PK. Chemical and biological methods for water pollution studies. Karad: Environmental Publications; 1986.
  79. Tsuji K, Ohnishi O. Phylogenetic relationships among wild and cultivated Tartary buckwheat (Fagopyrum tataricum Gaert.) populations revealed by AFLP analyses. Genes Genet Syst. 2001;76(1):47-52. https://doi.org/10.1266/ggs.76.47.
  80. Vashistha R, Nautiyal BP, Nautiyal MC. Conservation status and morphological variations between populations of Angelica glauca Edgew. and Angelica archangelica Linn. in Garhwal Himalaya. Curr Sci. 2006;91(11):1537-42.
  81. Vetaas OR. Comparing species temperature response curves: population density versus second-hand data. J Veg Sci. 2000;11(5):659-66. https://doi.org/10.2307/3236573.
  82. Walkley A, Black IA. An examination of the Degtjareff method for determining soil organic matter, and a proposed modification of the chromic acid titration method. Soil Sci. 1934;37(1):29-38. https://doi.org/10.1097/00010694-193401000-00003.
  83. Wangda P, Ohsawa M. Gradational forest change along the climatically dry valley slopes of Bhutan in the midst of humid Eastern Himalaya. Plant Ecol. 2006;186(1):109-28. https://doi.org/10.1007/s11258-006-9116-5
  84. Webb EL, Sah RN. Structure and diversity of natural and managed sal (Shorea robusta Gaertn.f.) forest in the Terai of Nepal. For Ecol Manag. 2003;176(1-3):337-53. https://doi.org/10.1016/S0378-1127(02)00272-4.
  85. Whitford PB. Distribution of woodland plants in relation to succession and clonal growth. Ecology. 1949;30(2):199-208. https://doi.org/10.2307/1931186.
  86. Yadav UKR, Zobel DB, Visvavidyalaya T. A practical manual for ecology. Kathmandu: Ratna Book Distributors; 1987.
  87. Zhang Q, Wang ZQ, Ji MF, Fan ZX, Deng JM. Patterns of species richness in relation to temperature, taxonomy and spatial scale in eastern China. Acta Oecol. 2011;37(4):307-313. https://doi.org/10.1016/j.actao.2011.03.002.