Connectivtiy of Remained Tropical Rain Forest in Langkat District, Indonesia

Anita Zaitunah, Samsuri Samsuri

Abstract


Remained forest connectivity facilitates organism movement, genetic exchange, and other ecological material flows. Low connectivity may decrease ecosystem production and cut the material flows within the forest ecosystems. The connectivity of ramaining forest is needed to determine the management strategy of forest landscape as a wildlife habitat. This paper describe connectivity of remaining tropical forest in Langkat district and explain correlation between connectivity and biophysical as well as anthropogenic factors. Landsat satellite imageries of year 1990 (Landsat TM), 2010 (SPOT), and 2015 (Landsat 8 OLI) were used to identify land cover in several different years. Fragstat was used to generate landscape metrics of the study area. Landscape metrics were analyzed using a scoring method to determine the connectivity degree of remaining forest. A Pearson correlation analysis was performed to obtain a correlation between connectivity degree and the distance from roads, the distance from rivers, elevation and slope. The study found that the total forest area and the landscape connectivity tend to decrease over the period from 1990 to 2015. The lowest connectivity degree was found in Wampu watershed. . The connectivity degree of remaining forest has a positive correlation with the slope and and the elevation.


Keywords


connectivity; tropical rain forest; Leuser ecosystem; degraded forest; fragstat.

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References


Anderson B, and C.N. Jenkins. Applying natures design: corridors as a strategy for biodiversity conservation. New York USA: Columbia University Press, 2006

Arima, E.Y., R.T. Walker, S.G. Perz and M. Caldas., (2005) Logger and forest fragmentation behaviour model of road building in the Amazon Basin. Annal of the Association of American Geography, 95, 525 541.

Batistella, M., S. Eduardo, Brondizio, F. Emilio and Moran., (2000) Comparative analysis of landscape fragmentation in Rondnia, Brazilian Amazon. International Archives of Photogrammetry and Remote Sensing, 33, 148-155.

Broquet, T., N. Ray, E. Petit, H.M. Fryxell and F. Burel., (2006) Genetic isolation by distance and landscape connectivity in the American marten (Martes americana). Landscape Ecology, 21, 877-889.

Cabral, D. C., S.R. Freitas and J.T. Fiszon.(2007) Combining sensors in landscape ecology: imagery based and farm level analysis in study human driven forest fragmentation. Sociedade & Natureza, 19, 69-87.

Collinge, S.K., (2000) Effects of grassland fragmentation on insect species loss, colonization, and movement patterns. Ecology, 81, 22112226.

Cortina J. (2006) Ecosystem structure, function, and restoration success: are they related. Journal for Nature Conservation, Elsevier, 14, 152 160.

Crooks, K.R. and M. Sanjayan (Eds.)., Connectivity conservation. Cambridge University Press: New York, 2006

Davies, Z. and A. Pullin, (2007) Are hedgerows effective corridors between fragments of woodland habitat? An evidence-based approach. Landscape Ecology, 22, 333-351.

Decout, S., S. Manel, C. Miaud, and S. Luque, (2010) Connectivity and landscape patterns in human dominated landscape: a case study with the common frog Rana temporaria. www.symposcience.org [2 Desember 2011]

Fahrig, L., (2003) Effect of habitat fragmentation on biodiversity. Annual review of Ecology, Evolution, and Systematics, 34, 487-515.

Fahrig, L. and G. Merriam, (1985) Habitat patch connectivity and population survival Ecology, 66, 1762-1768.

Fearnside, P.M. (2007) Brazils Cuiaba Santarem (BR-163) Higway. The Environmental Management, 39, 601-614

Fearnside, P.M. (2008) Will urbanization cause deforested area to be abandoned in Brazilian Amazon? Environmental Conservation, 35, 197 199.

Feraz,, S.F.B., C.A. Vettorazzi, D.M. Theobald, and M.V.R. Ballester, (2005) Landscape dynamic of Amazonia deforestation between 1984 and 2002 in Central Rendonia Brazil: Assesment and Future Scenario. Forest Ecology and Management, 204, 67-83.

Forman, R.T.T. and M. Godron. Landscape Ecology. New York: Wiley, 1986

Forman, R.T.T. Land Mosaics: The ecology of landscapes and regions (2nd Ed.). Cambridge: Cambridge University Press, 1995.

Garcia, S. Estimating landscape fragmentation form satelite images; the high of sensor spatial resolution. Remote Sensing for Agriculture. Ecosystem Hydrology, in Proc. SPIE 5232, 2004, 668-675.

Garca-Feceda, C., S. Saura and R. Elena-Rossella, (2011) Improving landscape connectivity in forest districts: A two-stage process for prioritizing agricultural patches for reforestation. Forest Ecology and Management, 261, 154161.

Goodwin, B.J. and L. Fahrig, (2002) How does landscape structure in?uence landscape connectivity? OIKOS 99, 552570.

Graves, T., S. Farley, M. Goldstein and C. Serheen, (2007) Identification of functional corridors with movement characteristics of brown bears on the Kenai Peninsula, Alaska. Landscape Ecology, 22, 765-772.

Gustafson, E.J. (1998) Quantifying landscape spatial pattern: what is the state of the art. Ecosystems, 1, 143-156.

Jaya, I.N.S. Analysis citra dijital: perspektif penginderaan jauh untuk pengelolaan sumberdaya alam. Bogor: Institut Pertanian Bogor Press, 2009.

Jaya, I.N.S., R. Boer and Samsuri. (2007) Developing fire risk index in Central Kalimantan. International Research Institute and Bogor Agricultural University. A Project Repport..

Levin, N. and H. Lahav (2007), Landscape continuity analysis: A new approach to conservation planning in Israel. Landscape and Urban Planning, 79, 53-64, 2007.

Lindborg, R. and O.Eriksson, (2004) Historical landscape connectivity affects present plant Species diversity. Ecology, 85(7), 18401845.

McGarigal K. Landscape Metrics, (1995). http://www.umass.edu/landeco/pubs/mcgarigal.marks. [7 September 2011]

McGarigal, K. and B.J. Marks, B. J. (1995) FRAGSTATS: spatial pattern analysis program for quantifying landscape structure. Gen. Tech. Rep. PNW-GTR-351.

Nagendra, H., J. Southworth and C. Tucker, (2003) Accessibility as a determinan of landscape transformation in Westeren Honduras. Landscape and Urban Planning, 83, 154 167.

Nikolakaki, P. (2004) A GIS Site Selection process for habitat creation: estimating connectivity of habitat patches. Landscape and Urban Planing, 68, 77-94.

Samsuri, Jaya INS, Kusmana C, dan Murtilaksono K. (2014) Fragmentation of tropical forest landscape on Batang Toru Watershed - North Sumatra. Journal Tropical Forest Management, 20(2), 77-85

Samsuri, Jaya INS, Kusmana C, dan Murtilaksono K. (2014). Restoration priority index development of degraded tropical forest landscape in Batang Toru Watershed, North Sumatera-Indonesia, Biotropia, 21(2):111-124

Saunders, D.A., R.J. Hobb and C.R. Marques, (1991) Biological consequences of ecosystem fragmentatio, a review. Conservation Biology, 5, 18-32.

Saura, S., P. Vogt, J. Velzquezc, A. Hernandoa and R. Tejeraa, (2011) Key structural forest connectors can be identi?ed by combining landscape spatial pattern and network analyses. Forest Ecology and Management, 262, 150160.

Schumaker, N. (1996) Using landscape indices to predicts habitat connectivity. Ecology, 77(4), 1210-1225.

Selman, P. Planning at the landscape scale. New York: Routledge, 2006.

Simone, R.F., T.J. Hawbaker, P.M. Jean. (2010) Effects of roads, topography, and land use on forest cover dynamics in the Brazilian Atlantic. Forest Forest Ecology and Management, 259 (3), 410417

Taylor, P.D., L. Fahrig, K. Henein and N.G. Merriam, Connectivity is a vital element of landscape, 1993.

Tena, A.G., L. Brotons and S. Saura, (2010) Effects of forest landscape change and management on the range expansion offorest bird species in the Mediterranean region. Forest Ecology and Management, 259, 13381346.

Van Lier, H.N. (1998) Sustainable land use planning. An editorial commentary. Landscape Urban Planning, 41, 79-82.

Verburg, P.H., W. Soephoer, A. Veldkamp, R. Limpiada and V. Espaldon, (2002) Modelling the spatial dynamics of regional landuse the CLUES. Model Environmental Management, 30, 391-405.

Xi, W.M. (2008) Landscape modeling for forest restoration planning and assessment: lessons from the Southern Appalachian Mountains. Journal of Forestry, 106 (4), 191-197.


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