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Nature and Extent of Forest Degradation in Central Himalayas

  • Surendra P. SinghEmail author
  • Anvita Pandey
  • Vishal Singh
Chapter

Abstract

Forest degradation is widespread in developing countries, as poor people depend on forest biomass collection on a “day-to-day” basis, giving little respite to forest ecosystems to recover. In the Himalayas, collection of firewood, tree leaf fodder, and leaf litter from forest floor is one of the main causes of forest degradation, particularly in oak (Quercus leucotrichophora) and pine (Pinus roxburghii) elevation belt (1000–2200 m elevation) of the Western and Central Himalayas. In this area, whole tree cutting is uncommon, but most trees are lopped until they become severely denuded, with little crown left. Compared to healthy forests, generally such degraded forests have 40–50% less biomass but about 80% less net primary productivity and 86.4% less leaf area. As degradation progresses, the biomass extracted from the forest declines, but in proportional terms it increases, resulting in a rapid disintegration of ecosystem structure and functions. Some of the observed effects are (1) reduction of soil carbon and nitrogen by 40–50%; (2) desiccation of oak acorns lying on forest floor well before the arrival of monsoon; (3) about 40% reduction in leaf litter decomposition; (4) 35% reduction in ectomycorrhizal association with roots, as indicated by fungal sporocarp density; and (5) 25% reduction in soil water holding capacity and 25% increase in soil bulk density (these values are in comparison to a relatively undisturbed forest). Recovery of a degraded forest (chronic disturbance) has not yet been investigated but is likely to be slower than that of a clear-cut (acute disturbance) forest. However, some interventions can result in a faster recovery.

Keywords

Forest degradation Forest biomass Leaf litter and net primary productivity Himalayas Oak and pine Recovery 

Notes

Acknowledgment

We are thankful to INSA, CHEA, CEDAR, DST INSPIRE, and Doon University for providing research facilities. No good work has ever been done without the active or passive support of people surrounding and mentoring; we are thankful to all who have contributed in this work in one way or the other; thank you once again for your useful insights.

References

  1. Asner G (2009) Automated mapping of tropical deforestation and forest degradation: CLASlite. J Appl Remote Sens 3(1):033543CrossRefGoogle Scholar
  2. Baland J (2009) Degradation forestière himalayenne: quel rôle des pouvoirs publics? Afr Contemp 229(1):43CrossRefGoogle Scholar
  3. Baland J, Mookherjee D (2014) Deforestation in the Himalayas: myths and reality. [online] SANDEE, Kathmandu. Available at: http://admin.indiaenvironmentportal.org.in/files/file/Deforestation%20in%20the%20
  4. Baland J, Bardhan P, Das S, Mookherjee D (2010) Forests to the people: decentralization and forest degradation in the Indian Himalayas. World Dev 38(11):1642–1656CrossRefGoogle Scholar
  5. Bormann FH, Likens GE (1979) Pattern and process in a forested ecosystem: disturbance, development and the steady state based on the Hubbard brook ecosystem study. Springer Science & Business MediaGoogle Scholar
  6. Chaudhary D, Saxena J, Lorenz N, Dick L, Dick R (2012) Microbial profiles of rhizosphere and bulk soil microbial communities of biofuel crops switchgrass (Panicum virgatum L.) and jatropha (Jatropha curcas L.). Appl Environ Soil Sci 24:1–6CrossRefGoogle Scholar
  7. Cousens J, Borman F, Likens G (1980) Pattern and process in a forested ecosystem. J Ecol 68(2):697CrossRefGoogle Scholar
  8. DeFries R, Achard F, Brown S, Herold M, Murdiyarso D, Schlamadinger B, de Souza C (2007) Earth observations for estimating greenhouse gas emissions from deforestation in developing countries. Environ Sci Pol 10(4):385–394CrossRefGoogle Scholar
  9. Denman KL (2007) Couplings between changes the climate system and biogeochemistry climate change: the physical science basis. Contribution of working group I to the fourth assessment report of the intergovernmental panel on climate change. Cambridge University Press, CambridgeGoogle Scholar
  10. FAO (2015) Global forest resources assessment. How are the world’s forests changing? 2nd edn. FAO, Rome 2016Google Scholar
  11. Garkoti S, Akoijam S, Singh S (2002) Ecology of water relations between mistletoe (Taxillus vestitus) and its host Oak (Q. floribunda). Trop Ecol 43(2):243–249Google Scholar
  12. Gumber S, Tewari A, Tewari B (2017) Loranthus (Taxillus Vestitus) infestation in mixed oak Forest sites in and around Nainital. Indian Forester 143(7):671–675Google Scholar
  13. Hosonuma N, Herold M, de Sy V, de Fries RS, Brockhaus M, Verchot L, Angelsen A, Romijn E (2012) An assessment of deforestation and forest degradation drivers in developing countries. Environ Res Lett 7(4):4009CrossRefGoogle Scholar
  14. Ives J (1989) Deforestation in the Himalayas. Land Use Policy 6(3):187–193CrossRefGoogle Scholar
  15. Joshi M, Mer G, Singh S, Rawat Y (1991) Seasonal pattern of total soil respiration in undisturbed and disturbed ecosystems of Central Himalaya. Biol Fertil Soils 11(4):267–272CrossRefGoogle Scholar
  16. Khan ML, Tripathi RS (1989) Effects of stump diameter, stump height and sprout density on the sprout growth of four tree species in burnt and unburnt forest plots. Acta Oecol 10(4):303–316Google Scholar
  17. Kopacz M, Mauzerall DL, Wang J, Leibensperger EM, Henze DK, Singh K (2011) Origin and radiative forcing of black carbon transported to the Himalayas and Tibetan Plateau. Atmos Chem Phys 11:2837–2852CrossRefGoogle Scholar
  18. Prabhakar R, Somanathan E, Mehta BS (2006) How degraded are Himalayan forests? In: Current science, pp 61–67Google Scholar
  19. Prabhakar R, Somanathan E, Singh B (2017) How degraded are Himalayan forests? on JSTOR. Available via Jstor.org. http://www.jstor.org/stable/24094176
  20. Raikwal D (2009) Effect of leaf litter removal on soil nutrients in the Central Himalayan banj oak and chir pine forests with relation to carbon sequestration. Thesis, Kumaun UniversityGoogle Scholar
  21. Ramanathan V, Carmichael G (2008) Global and regional climate changes due to black carbon. Nat Geosci 1(4):221–227CrossRefGoogle Scholar
  22. Rathore SKS, Singh SP, Singh JS, Tiwari AK (1997) Changes in forest cover in central Himalayan catchments: inadequacy of assessment based on forest area alone. J Environ Manag 49:273–285CrossRefGoogle Scholar
  23. Rawat YS, Singh JS (1989) Forest floor biomass, litter fall and nutrient return in central Himalayan oak forests. Vegetation 82(2):113–125CrossRefGoogle Scholar
  24. Singh SP (1998) Chronic disturbance, a principal cause of environmental degradation in developing countries. Environ Conserv 25:1–2CrossRefGoogle Scholar
  25. Singh V (2009). Biomass stock and carbon sequestration rates in banj oak (Qusercus leucotrichophora, A. Camus.) forests under different disturbance regimes in Central Himalayas. Thesis, Kumaun UniversityGoogle Scholar
  26. Singh S (2017) Climate change in Himalayas: research findings, complexities and institutional roles- 23rd GB Pant Memorial Lecture- GBPNIHESD. Kosi-Katarmal, AlmoraGoogle Scholar
  27. Singh JS, Singh SP (1987) Forest vegetation of Himalaya. Bot Rev 52:80–192CrossRefGoogle Scholar
  28. Singh JS, Singh SP (1992) Forests of Himalaya, structure, functioning and impact of man. Gyanodaya Prakashan, NainitalGoogle Scholar
  29. Singh S, Thadani R (2015) Complexities and controversies in Himalayan research: a call for collaboration and rigor for better data. Mt Res Dev 35(4):401–409CrossRefGoogle Scholar
  30. Singh JS, Pandey U, Tiwari AK (1984) Man and forests: a central Himalayan case study. Ambio 13(2):80–87Google Scholar
  31. Singh SP, Bassignana-Khadka I, Singh Karky B, Sharma E (2011) Climate change in the Hindu Kush-Himalayas: the state of current knowledge. International Centre for Integrated Mountain Development (ICIMOD)Google Scholar
  32. Singh V, Thadani R, Tewari A, Ram J (2014) Human influence on banj oak (Quercus leucotrichophora, A. Camus) forests of central Himalaya. J Sustain For 33(4):373–386CrossRefGoogle Scholar
  33. Singh DS, Tangri AK, Kumar D, Dubey CA, Bali R (2017) Pattern of retreat and related morphological zones of Gangotri Glacier, Garhwal Himalaya, India. Quat Int 444:172–181CrossRefGoogle Scholar
  34. Skutsch M, Zahabu E, Lovett J, McCall M, Singh SP, Trines E, Verplanke J, Karky BS, van Laake P, Banskota K, Basnet R, Ba L (2008) Dealing with emissions from dry forest degradation; a low cost community-based approach. Think Global, Act Local project, KyotoGoogle Scholar
  35. Souza C (2003) Mapping forest degradation in the Eastern Amazon from SPOT 4 through spectral mixture models. Remote Sens Environ 87(4):494–506CrossRefGoogle Scholar
  36. Tewari A, Singh V, Phartiyal P (2008) The potential of community managed forests for carbon trade. LEISA Mag 24:332–333Google Scholar
  37. Thadani R (1999) Disturbance, microclimate and competitive dynamics of tree seedlings in Banj oak (Quercus leucotrichophora) forest of central Himalayas India. Thesis, Yale UniversityGoogle Scholar
  38. Thadani R (2008) Direct sowing of Acorns: A low cost reforestation technique for the Himalaya. Centre for Ecology, Development and Research (CEDAR), Dehradun, New DelhiGoogle Scholar
  39. Tucker R (1986) The evolution of Transhumant Grazing in the Punjab Himalaya. Mt Res Dev 6(1):17CrossRefGoogle Scholar
  40. Tucker BE, King JL (1984) Dependence of sediment-filled valley response on input amplitude and valley properties. Bull Seismol Soc Am 74(1):153–165Google Scholar
  41. Upreti N, Tewari JC, Singh SP (1985) The oak forests of the Kumaun Himalaya (India): Composition, diversity and regeneration. Mt Res Dev 5:163–174CrossRefGoogle Scholar
  42. Zobel DB, Singh SP (1995) Tree water relations along the vegetational gradient in the Himalayas. Curr Sci:742–745Google Scholar
  43. Zobel DB, Singh SP (1997) Himalayan forests and ecological generalizations. Bioscience 11:735–745CrossRefGoogle Scholar

Copyright information

© Springer Nature Singapore Pte Ltd. 2019

Authors and Affiliations

  • Surendra P. Singh
    • 1
    Email author
  • Anvita Pandey
    • 2
  • Vishal Singh
    • 3
  1. 1.Central Himalayan Research Association (CHEA)NainitalIndia
  2. 2.SENR, Doon UniversityDehradunIndia
  3. 3.Centre for Ecology Development and ResearchDehradunIndia

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