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58 - Climatic change impacts on tropical montane cloud forests: fire as a major determinant in the upper zones of Mount Kilimanjaro, Tanzania

from Part VI - Effects of climate variability and climate change

Published online by Cambridge University Press:  03 May 2011

By
A. Hemp
Edited by
L. A. Bruijnzeel ,
F. N. Scatena  and
L. S. Hamilton
A. Hemp
Affiliation:
University of Bayreuth, Germany
L. A. Bruijnzeel
Affiliation:
Vrije Universiteit, Amsterdam
F. N. Scatena
Affiliation:
University of Pennsylvania
L. S. Hamilton
Affiliation:
Cornell University, New York
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Summary

ABSTRACT

Cloud forests are of great importance for the hydrological functioning of watersheds in sub-humid East Africa. However, the montane forests of Mt. Kilimanjaro are heavily threatened, at lower elevations by illegal logging and at higher elevations by an increasing fire risk. Based on an evaluation of over 1400 vegetation plots and interpretation of satellite imagery from 1976 and 2000, land-cover changes on Kilimanjaro were evaluated and their impact on the water balance estimated. In recent years, a drier climate has facilitated the spreading of human-caused fires dramatically, and has led to the almost complete destruction of the former closed forest between 3000 m.a.s.l. and the potential tree-line at 4000 m.a.s.l. Therefore, the current upper closed forest limit at 3200 m.a.s.l. has become suppressed by nearly 800 m. Since 1976, about 150 km2 of cloud forests have been destroyed by fire, possibly representing an estimated annual loss of 20 million m3 of water potentially captured by “fog stripping” under forested conditions. Such losses are potentially much more harmful hydrologically speaking than those associated with the loss of the showy ice cap on Kilimanjaro and highlight the importance of quantitative hydrological investigations in support of montane forest conservation and management in the region.

Type
Chapter
Information
Tropical Montane Cloud Forests
Science for Conservation and Management
 , pp. 566 - 574
Publisher: Cambridge University Press
Print publication year: 2011

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References

Altmann, J., Alberts, S. C., Altmann, S. A., and Roy, S. B. (2002). Dramatic change in local climate patterns in the Amboseli basin, Kenya. African Journal of Ecology 40: 248–251.CrossRefGoogle Scholar
Blackie, J. R. (1979a). The water balance of the Kericho catchments. East African Agricultural and Forestry Journal 43: 55–84.CrossRefGoogle Scholar
Blackie, J. R. (1979b). The water balance of the Kimakia catchments. East African Agricultural and Forestry Journal 43: 155–174.CrossRefGoogle Scholar
Bruijnzeel, L. A. (1990). Hydrology of Moist Tropical Forests and Effects of Conversion: A State-of-Knowledge Review. Paris: UNESCO International Hydrological Programme.Google Scholar
Bruijnzeel, L. A. (2001). Hydrology of tropical montane cloud forests: a reassessment. Land Use and Water Resources Research 1: 1–18.Google Scholar
Bruijnzeel, L. A., and Proctor, J. (1995). Hydrology and biogeochemistry of tropical montane cloud forests: what do we really know? In Tropical Montane Cloud Forests, eds. Hamilton, L. S., Juvik, J. O., and Scatena, F. N., pp. 38–78. New York: Springer-Verlag.CrossRefGoogle Scholar
Bruijnzeel, L. A., Eugster, W., and Burkard, R. (2005). Fog as an input to the hydrological cycle. In Encyclopaedia of Hydrological Sciences, eds. Anderson, M. G. and McDonnell, J. J., pp. 559–582. Chichester, UK: John Wiley.Google Scholar
Cavelier, J., and Goldstein, G. (1989). Mist and fog interception in elfin cloud forests in Columbia and Venezuela. Journal of Tropical Ecology 5: 309–322.CrossRefGoogle Scholar
,CES (Consulting Engineers) (2002). Hydrometic Report of the Hai District Water Supply Phase IV (2002). Dar es Salaam, Tanzania: United Republic of Tanzania, Ministry of Water.Google Scholar
Dohrenwend, R. E. (1979). Hydrologic Behavior at the Top of a Tropical Mountain. Houghton, MI: Michigan Technological University Forestry Center.Google Scholar
Edwards, K. A. (1979). The water balance of the Mbeya experimental catchments. East African Agricultural and Forestry Journal 43: 231–247.CrossRefGoogle Scholar
Eva, H., and Lambin, E. F. (2000). Fires and land-cover change in the tropics: a remote sensing analysis at the landscape scale. Journal of Biogeography 27: 765–776.CrossRefGoogle Scholar
Furrer, G., and Freund, R. (1973). Beobachtungen zum subnivalen Formenschatz am Kilimanjaro. Zeitschrift fürGeomorphologie N. F. 16: 180–203.Google Scholar
García-Santos, G. (2007). An ecohydrological and soils study in a montane cloud forest in the National Park of Garajonay, La Gomera (Canary Islands, Spain). Ph.D. Thesis, VU University Ámsterdam, Ámsterdam, The Netherlands. [http://www.falw.vu.nl/nl/onderzoek/earth-sciences/geo-environmental-science-and-hydrology/hydrology-dissertations/index.asp].
Grabherr, G., and Pauli, H. (1994). Climate effects on mountain plants. Nature 369: 448.CrossRefGoogle ScholarPubMed
Hedberg, O. (1951). Vegetation belts of the East African mountains. Svensk Botaniker Tidskrift 45: 140–202.Google Scholar
Hemp, A. (2001). Ecology of the pteridophytes on the southern slopes of Mt. Kilimanjaro. II. Habitat selection. Plant Biology 3: 493–523.CrossRefGoogle Scholar
Hemp, A. (2002). Ecology of the pteridophytes on the southern slopes of Mt. Kilimanjaro. I. Altitudinal distribution. Plant Ecology 159: 211–239.CrossRefGoogle Scholar
Hemp, A. (2003). Climate impacts and responses on Mount Kilimanjaro. In Development and Climate Change in Tanzania: Focus on Mount Kilimanjaro, eds. Agrawala, S. and Moehner, A.. Paris: OECD.Google Scholar
Hemp, A. (2005a). Climate change driven forest fires marginalize the impact of ice cap wasting on Kilimanjaro. Global Change Biology 11: 1013–1023.CrossRefGoogle Scholar
Hemp, A. (2005b). The impact of fire on diversity, structure and composition of Mt. Kilimanjaro's vegetation. In Land Use Changes and Mountain Biodiversity, eds. Spehn, E., Liberman, M., and Körner, C., pp. 51–68. Boca Raton, FL: CRC Press.Google Scholar
Hemp, A. (2006a). Continuum or zonation? Altitudinal diversity patterns in the forests on Mt. Kilimanjaro. Plant Ecology 184: 27–42.CrossRefGoogle Scholar
Hemp, A. (2006b). Vegetation of Kilimanjaro: hidden endemics and missing bamboo. African Journal of Ecology 44: 305–328.CrossRefGoogle Scholar
Hemp, A., and Beck, E. (2001). Erica excelsa as a fire-tolerating component of Mt. Kilimanjaro's forests. Phytocoenologia 31: 449–475.CrossRefGoogle Scholar
Hemp, A., Lambrechts, C., and Hemp, C. (in press). Global Trends and Africa: The Case of Mt. Kilimanjaro. Nairobi, Kenya: UNEP.
Holwerda, F. (2005). Water and energy budgets of rain forests along an elevational gradient under maritime tropical conditions. Ph.D. thesis, VU University Amsterdam, Amsterdam, the Netherlands. Also available at www.falw.vu.nl/images_upload/B321FA03-1279-D040-8B25E94A8EBDB962.pdf.Google Scholar
Jaeger, F. (1909). Forschungen in den Hochregionen des Kilimandscharo. Mitteilungen aus den Deutschen Schutzgebieten 22: 113–146; 161–196.
Juvik, J. O. (2009). The seminal Hawaiian cloud forest “Lâna'i fog drip study”: 50th anniversary reassessment. In Tropical Hydrology Symposium, eds. Ogden, F. L., Harmon, R. S., and Stallard, R. F., p. 229. Panama City: Smithsonian Tropical Research Institute.Google Scholar
Juvik, J. O., and Nullet, D. (1995). Relationships between rainfall, cloud-water interception, and canopy throughfall in a Hawaian montane forest. In Tropical Montane Cloud Forests, eds. Hamilton, L. S., Juvik, J. O., and Scatena, F. N., pp. 165–182. New York: Springer-Verlag.CrossRefGoogle Scholar
Kämmer, F. (1974). Klima und Vegetation auf Tenerife, besonders im Hinblick auf den Nebelniederschlag. Scripta Geobotanica 7: 1–78.Google Scholar
Kaser, G., Hardy, D. R., Mölg, T., Bradley, R. S., and Hyera, T. M. (2004). Modern glacier retreat on Kilimanjaro as evidence of climate change: observations and facts. International Journal of Climatology 24: 329–339.CrossRefGoogle Scholar
Klute, F. (1920). Ergebnisse der Forschungen am Kilimandscharo 1912. Berlin: Reimer.Google Scholar
Köhler, L., Tobón, C., Frumau, K. F. A., and Bruijnzeel, L. A. (2007). Biomass and water storage dynamics of epiphytes in old-growth and secondary montane cloud forest stands in Costa Rica. Plant Ecology 193: 171–184.CrossRefGoogle Scholar
Körner, C. (2003). Alpine Plant Life. Berlin: Springer-Verlag.CrossRefGoogle Scholar
Lambrechts, C., Woodley, B., Hemp, A., Hemp, C., and Nnyiti, P. (2002). Aerial Survey of the Threats to Mt. Kilimanjaro Forests. Dar es Salaam, Tanzania: UNDP.Google Scholar
McJannet, D., Fitch, P., Disher, M., and Wallace, J. (2007). Measurements of transpiration in four tropical rainforest types of north Queensland, Australia. Hydrological Processes 21: 3549–3564.CrossRefGoogle Scholar
Nauss, T., Bendix, J., and Bruijnzeel, L. A. (2009). Climate dynamics of the Kilimanjaro region. Kilimanjaro Ecosystems under Global Change: Linking Biodiversity, Biotic Interactions and Biogeochemical Ecosystem Processes, ed. I. Steffan-Dewenter. Proposal for the establishment of a Research Unit submitted to the Deutsche Forschungsgemeinschaft.
Pócs, T. (1976). The role of the epiphytic vegetation in the water balance and humus production of the rain forests of the Uluguru Mountains, East Africa. Boissiera 24: 499–503.Google Scholar
Ponette-González, A. G., Weathers, K. C., and Curran, L. M. (2009). Water inputs across a tropical montane landscape in Veracruz, Mexico: synergistic effects of land cover, rain and fog seasonality, and interannual precipitation variability. Global Change Biology, doi:10.1111/j.1365–2486.2009.01985.x.CrossRef
Prada, S., Menezes de Sequeiro, M., Figueira, C., and Silva, M. Oliveira da (2009). Fog precipitation and rainfall interception in the natural forests of Madeira Island (Portugal). Agricultural and Forest Meteorology 149: 1179–1187.CrossRefGoogle Scholar
Rietkerk, M. G., Dekker, S. C., , P. C. de ruiter, and Koppel, J. (2004). Self-organized patches and catastrophic shifts in ecosystems. Science 305: 1826–1829.CrossRefGoogle Scholar
Røhr, P. C. (2003). A hydrological study concerning the southern slopes of Mt. Kilimanjaro, Tanzania. Ph.D. thesis, Norwegian University of Science and Technology, Trondheim, Norway.Google Scholar
Santiago, L. S., Goldstein, G., Meinzer, F. C., Fownes, J., and Mueller-Dombois, D. (2000). Transpiration and forest structure in relation to soil waterlogging in a Hawaiian montane cloud forest. Tree Physiology 20: 673–681.CrossRefGoogle Scholar
Shugart, H. H, French, N. H. F, Kasischke, E. S., et al. (2001). Detection of vegetation change using reconnaissance imagery. Global Change Biology 7: 247–252.CrossRefGoogle Scholar
Steinhardt, U. (1979). Untersuchungen über den Wasser- und Nährstoffhaushalt eines andinen Wolkenwaldes in Venezuela. Göttinger Bodenkundliche Berichte 56: 1–185.Google Scholar
Tenhunen, J., Otieno, D., Huwe, B., and Glaser, B. (2009). Patterns in water and carbon flux controls along land use and climate gradients. Kilimanjaro Ecosystems under Global Change: Linking Biodiversity, Biotic Interactions and Biogeochemical Ecosystem Processes, ed. I. Steffan-Dewenter. Proposal for the establishment of a Research Unit submitted to the Deutsche Forschungsgemeinschaft.
Koppel, J., and Rietkerk, M. G. (2004). Spatial interactions and resilience in arid ecosystems. American Naturalist 163: 113–121.CrossRefGoogle ScholarPubMed
Walter, H., and Breckle, S. W. (1984). Spezielle Ökologie der tropischen und subtropischen Zonen: Ökologie der Erde. Berlin: Fischer-Verlag.Google Scholar

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