Quantifying landscape pattern and assessing the land cover changes in Piatra Craiului National Park and Bucegi Natural Park, Romania, using satellite imagery and landscape metrics
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Protected areas of Romania have enjoyed particular importance after 1989, but, at the same time, they were subject to different anthropogenic and natural pressures which resulted in the occurrence of land cover changes. These changes have generally led to landscape degradation inside and at the borders of the protected areas. In this article, 12 landscape metrics were used in order to quantify landscape pattern and assess land cover changes in two protected areas, Piatra Craiului National Park (PCNP) and Bucegi Natural Park (BNP). The landscape metrics were obtained from land cover maps derived from Landsat Thematic Mapper (TM) and Landsat Enhanced Thematic Mapper Plus (ETM+) images from 1987, 1993, 2000, 2009 and 2010. Three land cover classes were analysed in PCNP and five land cover map classes in BNP. The results show a landscape fragmentation trend for both parks, affecting different types of land covers. Between 1987 and 2010, in PCNP fragmentation was, in principle, the result not only of anthropogenic activities such as forest cuttings and illegal logging but also of natural causes. In BNP, between 1987 and 2009, the fragmentation affected the pasture which resulted in the occurrence of bare land and rocky areas because of the erosion on the Bucegi Plateau.
KeywordsFragmentation Landscape metrics Landscape pattern Satellite images
The author would like to thank the management of Piatra Craiului National Park and Bucegi Natural Park for their assistance in obtaining the material. Also, the author would like to express his gratitude to the two anonymous reviewers for their pertinent observations and comments and to Claudia Ciubancan for her support with the English language.
- Abrudan, I. V., Marinescu, V., Ionescu, O., Ioras, F., Horodnic, S. A., & Sestras, R. (2009). Developments in the Romanian forestry and its linkages with other sectors. Notulae Botanicae Horti Agrobotanici Cluj-Napoca, 37(2), 14–21.Google Scholar
- Piatra Craiului National Park Administration (2011). Management Plan of Piatra Craiului National Park (in Romanian). http://www.pcrai.ro//files/Plan_site.pdf. Accessed 20 Jan 2015.
- Bucegi Natural Park Administration, (2011). Management plan of Bucegi Natural ark (in Romanian). http://www.bucegipark.ro/informatii.php?show=plan. Accessed 20 Jan 2015.
- Chavez Jr., P. S. (1996). Image-based atmospheric corrections—revisited and improved. Photogrammetric Engineering and Remote Sensing, 62(9), 1025–1036.Google Scholar
- Congalton, R. G., & Green, K. (2009). Assessing the accuracy of remotely sensed data: Principles and practices. London: CRC Press Taylor & Francis Group.Google Scholar
- Forman, R. T. T. (1995). Land mosaics—The ecology of landscape and regions. Cambridge: Cambridge University Press.Google Scholar
- Frohn, R. C. (1998). Remote sensing for landscape ecology: New metric indicators for monitoring, modeling, and assessment of ecosystems. Florida: Boca Raton, Lewis Publications.Google Scholar
- Ienciu, I., Dimen, L., Ludusan, N., Grecea, C., Borsan, T., & Oprea, L. (2012). Dynamics of the rill and gully erosion using GIS technologies. Journal of Environmental Protection and Ecology, 13(1), 345–351.Google Scholar
- Jensen, J. R. (2007). Remote sensing of the environment: an earth resource perspective. New Jersey: Upper Saddle River, NJ: Pearson Prentice Hall.Google Scholar
- Joern, A., & Keeler, K. H. (1995). Getting the lay of the land: introducing North American native grassland: In: Joern, A. and Keeler, K. H. (Eds.), The changing prairie: North American grasslands (pp. 11–24). New York: Oxford University Press.Google Scholar
- Knorn, J. (2012). Studying land-use and land-cover change with high resolution data—an assessment of the Carpathian Ecoregion. PhD Thesis, Humboldt-Universität zu Berlin – Geographisches Institut: Berlin, 165 p.Google Scholar
- Lillesand, T. M., Kiefer, R. W., & Chipman, J. W. (2008). Remote sensing and image interpretation. NewYork: JohnWiley & Sons.Google Scholar
- Markham, B. L., & Barker, J. L. (1986). Landsat MSS and TM post-calibration dynamic ranges, exatmospheric reflectances and at-satellite temperatures. EOSAT Landsat Technical Notes, 1, 3–8.Google Scholar
- McGarigal, K., & Marks, B. J. (1995). Fragstats: spatial pattern analysis program for quantifying landscape structure. General Technical Report PNW–GTR–351. Portland OR: U.S. Department of Agriculture, Forest Service, Pacific Northwest Research Station.Google Scholar
- Tereşneu, C. C. (2012). Automatic data processing of geodetic data. Brasov: Transilvania University Publishing House (in Romanian).Google Scholar
- Tudoran, G. M. (2013). Regulations regarding the management of forests included in natural protected areas. Bulletin of the Transilvania University of Braşov, Series II: Forestry, Wood Industry, Agricultural Food Engineering, 6(55)(1), 33–38.Google Scholar
- Risser, P. G., Birney, E. C., Blocker, H. D., May, S. W., Parton, W. J., & Wiens, J. A. (1981). The true prairie ecosystem. Stroudsburg, Pennsylvania: Hutchinson Ross Publishing Company.Google Scholar
- Voiculescu, M. (2009). The present-day erosional processes in the alpine level of the Bucegi Mountains—Southern Carpathians. Geographic Forum. Studies and Research in Geography and Environment, VIII(8), 23–37.Google Scholar
- Vorovencii, I., & Iordache, E. (2013). Identification and analysis of forest disturbances and fragmentation in Giurgeu Mountains, Romania, using Landsat data. In: Proceedings of the 6th international scientific conference „Rural Development 2013”, Vol. 6, Book 3, Kaunas, Lithuania, pp. 513–518.Google Scholar