Journal of Geoscience and Environment Protection, 2016, 4, 13-33
http://www.scirp.org/journal/gep
ISSN Online: 2327-4344
ISSN Print: 2327-4336
DOI: 10.4236/gep.2016.411003 November 4, 2016
Monitoring Forest Cover Change and
Fragmentation Using Remote Sensing and
Landscape Metrics in Nyungwe-Kibira Park
Alphonse Kayiranga
1,2,3
, Alishir Kurban
1,2*
, Felix Ndayisaba
1,2,3
, Lamek Nahayo
1,2,3
,
Fidele Karamage
1,2,3
, Abdimijit Ablekim
1,2
, Haiwen Li
1,2
, Osman Ilniyaz
1,2
1
State Key Laboratory of Desert and Oasis Ecology, Xinjiang Institute of Ecology and Geography, Chinese Academy of Sciences, Urumqi,
China
2
University of Chinese Academy of Sciences (UCAS), Beijing, China
3
University of Lay Adventists of Kigali (UNILAK), Kigali, Rwanda
Abstract
The objective of this study was to evaluate forest cover change and forest degradation
in Nyungwe-Kibira Park, a natural reserve straddling Rwanda and Burundi from
1986 to 2015. Landsat TM, ETM+ and 8OLI images of 30 m spatial resolution were
used as primary datasets. Geographic Information System (GIS) techniques were
used for forest cover mapping and landscape metrics were calculated by using
FRAGSTATS software. Classification and change analysis of forest cover type and
landscape patterns analysis were carried out. In addition, to analyze the correlated
external disturbances, the buffer zone of 5 Km was delineated outside the boundary
of Nyungwe-Kibira Park. The results revealed that in among 5 land cover classes
considered within the Park, the dominant one was dense forest class covering over
70% of the entire Park area while in the buffer zone cultivated and open land domi-
nated at over 90% between the years 1986 and 2015. Change detection highlighted
that within Nyungwe-Kibira forest, approximately 0.27% (4.97 Km
2
) of forest cover
was cleared while 0.07% (1.22 Km
2
) was regenerated annually. In the buffer zone, the
annual cleared forest cover was about 0.76% (13.02 Km
2
). The five landscape indices
chosen at class level indicated a considerable fragmentation of forest inside the Park
and the highest fragmentation in the buffer zone. Indeed, these results shed a bleak
image over the future of the Nyungwe-Kibira forest that should be helpful for the
policy-makers and managers of these natural parks to establish adequate policies to
mitigate the forest loss and degradation by implementing quick and effective solu-
tions.
How to cite this paper: Kayiranga, A., Kur-
ban, A., Ndayisaba, F., Nahayo, L., Kara-
mage, F., Ablekim, A., Li, H.W. and Ilniyaz,
O. (2016) Monitoring Forest Cover Change
and Fragmentation Using Remote Sensing
and Landscape Metrics in Nyungwe-Kibira
Park. Journal of Geoscience and Environ-
ment Protection, 4, 13-33.
http://dx.doi.org/10.4236/gep.2016.411003
Received: September 30, 2016
Accepted: November 1, 2016
Published: November 4, 2016
Copyright © 2016 by authors and
Scientific Research Publishing Inc.
This work is licensed under the Creative
Commons Attribution International
License (CC BY 4.0).
http://creativecommons.org/licenses/by/4.0/
Open Access