Environmental Armed Conflict Assessment Using Satellite Imagery
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Abstract
Armed conflicts not only affect human populations but can also cause considerable damage to the environment. Its consequences are as diverse as its causes, including; water pollution from oil spills, land degradation due to the destruction of infrastructure, poisoning of soils and fields, destruction of crops and forests, over-exploitation of natural resources and paradoxically and occasionally reforestation. In this way, the environment in the war can be approached as beneficiary, stage, victim or/and spoil of war.
Although there are few papers that assess the use of remote sensing methods in areas affected by warfare, we found a gap in these studies, being both outdated and lacking the correlation of remote sensing analysis with the causes-consequences, biome features and scale. Thus, this paper presents a methodical approach focused on the assessment of the existing datasets and the analysis of the connection between geographical conditions (biomes), drivers and the assessment using remote sensing methods in areas affected by armed conflicts. We aimed to find; weaknesses, tendencies, patterns, points of convergence and divergence. Then we consider variables such as biome, forest cover affectation, scale, and satellite imagery sensors to determine the relationship between warfare drivers with geographical location assessed by remote sensing methods. We collected data from 44 studies from international peer-reviewed journals from 1998 to 2019 that are indexed using scientific search engines. We found that 62% of the studies were focused on the analysis of torrid biomes as; Tropical Rainforest, Monsoon Forest / Dry Forest, Tree Savanna and Grass Savanna, using the 64% Moderate-resolution satellite imagery sensors as; Landsat 4-5 TM and Landsat 7 ETM+. Quantitative analysis of the trends identified within these areas contributes to an understanding of the reasons behind these conflicts.
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Abuelgasim, A.A., Ross, W.D., Gopal, S., Woodcock, C.E. 1999. Change detection using adaptive fuzzy neural networks: environmental damage assessment after the Gulf War. Remote Sensing of Environment 70 (2), 208–223. DOI: 10.1016/s0034-4257(99)00039-510.1016/S0034-4257(99)00039-5
Al-Khudhairy, D.H.A., Caravaggi, I., Giada, S. 2005. Structural damage assessments from Ikonos data using change detection, object-oriented segmentation, and classification techniques. Photogrammetric Engineering & Remote Sensing 71 (7), 825–837. DOI: 10.14358/pers.71.7.82510.14358/PERS.71.7.825
Álvarez, M.D. 2003. Forests in the time of violence: Conservation implications of the Colombian War. Journal of Sustainable Forestry 16 (3-4), 47-68. DOI: 10.1300/J091v16n03_0310.1300/J091v16n03_03
Armenteras, D., Rudas, G., Rodriguez, N., Sua, S., Romero, M. 2006. Patterns and causes of deforestation in the Colombian Amazon. Ecological Indicators 6 (3), 353–368. DOI: 10.1016/j.ecolind.2005.03.01410.1016/j.ecolind.2005.03.014
Armenteras, D., Cabrera, E., Retana, J., Rodríguez, N. 2013. National and regional determinants of tropical deforestation in Colombia. Regional Environmental Change 13 (6), 1181–1193. DOI: 10.1007/s10113-013-0433-710.1007/s10113-013-0433-7
Bjorgo, E. 1999. Using very high spatial resolution multispectral satellite sensor imagery to monitor refugee camps. International Journal of Remote Sensing 21 (3), 611–616. DOI: 10.1080/01431160021078610.1080/014311600210786
Biswas, A.K., Tortajada-Quiroz, H.C. 1996. Environmental impacts of the Rwandan refugees on Zaire. Ambio 25 (6), 403–408. Online available at: https://www.jstor.org/stable/4314504
Black, R. 1994. Forced migration and environmental change: the impact of refugees on host environments. Journal of Environmental Management 42 (3), 261–277. DOI: 10.1006/jema.1994.107210.1006/jema.1994.1072
Blackman, A. 2013. Evaluating forest conservation policies in developing countries using remote sensing data: an introduction and practical guide. Forest Policy and Economics 34, 1–16. DOI: 10.1016/j.forpol.2013.04.00610.1016/j.forpol.2013.04.006
Burgess, R., Miguel, E., Stanton, C. 2015. War and deforestation in Sierra Leone. Environmental Research Letters 10 (9) 095014. DOI: 10.1088/1748-9326/10/9/09501410.1088/1748-9326/10/9/095014
Butsic, V., Baumann, M., Shortland, A., Walker, S., Kuemmerle, T. 2015. Conservation and conflict in the Democratic Republic of Congo: The impacts of warfare, mining, and protected areas on deforestation. Biological Conservation 191, 266–273. DOI: 10.1016/j.biocon.2015.06.03710.1016/j.biocon.2015.06.037
Cabrera, E., Galindo, G., González, J., Vergara, L., Forero, C., Cubillos, A., Espejo, J., Rubiano, J., Corredor, X., Hurtado, L., Vargas D., Duque, A. 2019. Colombian forest monitoring system: Assessing deforestation in an environmental complex country. In: Suratman, M.N. (ed.) Deforestation around the World. IntechOpen, DOI: 10.5772/intechopen.8614310.5772/intechopen.86143
Chadid, M. A., Dávalos, L. M., Molina, J., Armenteras, D. 2015. A Bayesian spatial model highlights distinct dynamics in deforestation from coca and pastures in an Andean biodiversity hotspot. Forest 6 (12), 3828–3846. DOI: 10.3390/f611382810.3390/f6113828
Corson, M. W., Palka, E. J. 2004. Geotechnology, the U.S. Military, and War. In: Brunn, S.D., Cutter, S.L., Harrington J.W. (eds.) Geography and Technology. Springer, Dordrecht, 401–427. DOI: 10.1007/978-1-4020-2353-8_1810.1007/978-1-4020-2353-8_18
Dávalos, L.M. 2001. The San Lucas mountain range in Colombia: how much conservation is owed to the violence? Biodiversity and Conservation 10, 69–78. DOI: 10.1023/A:101665101129410.1023/A:1016651011294
de Merode, E., Smith, K.H., Homewood, K., Pettifor, R., Rowcliffe, M., Cowlishaw, G. 2007. The impact of armed conflict on protected-area efficacy in Central Africa. Biology Letters 3 (3), 299–301. DOI: 10.1098/rsbl.2007.001010.1098/rsbl.2007.0010
Draulans, D., Van Krunkelsven, E. 2002. The impact of war on forest areas in the Democratic Republic of Congo. Oryx 36 (1), 35–40. DOI: 10.1017/S003060530200006610.1017/S0030605302000066
Enaruvbe, G.O., Keculah, K.M., Atedhor, G.O., Osewole, A.O. 2019. Armed conflict and mining induced land-use transition in northern Nimba County, Liberia. Global Ecology and Conservation 17, e00597. DOI: 10.1016/j.gecco.2019.e0059710.1016/j.gecco.2019.e00597
Geist, H.J., Lambin E.F. 2002. Proximate causes and underlying driving forces of tropical deforestation. Bioscience 52 (2), 143–150. DOI: 10.1641/0006-3568(2002)052[0143:PCAUDF]2.0.CO;2
Garcia-Corrales, L.M., Avila, H., Gutierrez, R.R. 2019. Land-use and socioeconomic changes related to armed conflicts: A Colombian regional case study. Environmental Science and Policy 97, 116–124. DOI: 10.1016/j.envsci.2019.04.01210.1016/j.envsci.2019.04.012
Gbanie, S.P., Griffin, A.L., Thornton, A. 2018. Impacts on the urban environment: Land cover change trajectories and landscape fragmentation in post-war Western Area, Sierra Leone. Remote Sensing 10 (1), 129. DOI: 10.3390/rs1001012910.3390/rs10010129
Gheyle, W., Stichelbaut, B., Saey, T., Note, N., Van den Berghe, H., Van Eetvelded, V., Van Meirvenne, M., Bourgeois, J. 2018. Scratching the surface of war. Airborne laser scans of the Great War conflict landscape in Flanders. Applied Geography 90, 55–68. DOI: 10.1016/j.apgeog.2017.11.01110.1016/j.apgeog.2017.11.011
Michael Ezequiel Gómez-Rodríguez, M.E., Molina-Pérez, F.J., Agudelo-Echavarría, D.M., Cañón-Barriga, J.E., Vélez-Macías, F. de J. 2017. Changes in soil cover in Nechí, Antioquia: An approach to the environmental impact of mining, 1986-2010. Revista Facultad de Ingeniería 26 (45), 149–163. DOI: 10.19053/01211129.v26.n45.2017.642310.19053/01211129.v26.n45.2017.6423
Gorsevski, V., Kasischke, E., Dempewolf, J., Loboda, T., Grossmann, F. 2012. Analysis of the impacts of armed conflict on the Eastern Afromontane forest region on the South Sudan - Uganda border using multitemporal Landsat imagery. Remote Sensing of Environment 118, 10–20. DOI: 10.1016/j.rse.2011.10.02310.1016/j.rse.2011.10.023
Gorsevski, V., Geores, M., Kasischke, E. 2013. Human dimensions of land use and land cover change related to civil unrest in the Imatong Mountains of South Sudan. Applied Geography 38, 64–75. DOI: 10.1016/j.apgeog.2012.11.01910.1016/j.apgeog.2012.11.019
Hagenlocher, M., Lang, S., Tiede, D. 2012. Integrated assessment of the environmental impact of an IDP camp in Sudan based on very high resolution multi-temporal satellite imagery. Remote Sensing of Environment 126, 27–38. DOI: 10.1016/j.rse.2012.08.01010.1016/j.rse.2012.08.010
Hanson, T., Brooks, T.M., Da Fonseca, G.A.B., Hoffmann, M., Lamoreux, J.F., Machlis, G., Mittermeier, C.G., Mittermeier, R.A., Pilgrim, J.D. 2008. Warfare in Biodiversity Hotspots. Conservation Biology 23 (3), 578–587. DOI: 10.1111/j.1523-1739.2009.01166.x10.1111/j.1523-1739.2009.01166.x
Hecht, S.B., Saatchi, S.S. 2007. Globalization and forest resurgence: Changes in forest cover in El Salvador. Bioscience 57 (8), 663–672. DOI: 10.1641/B57080610.1641/B570806
Hoffmann, C., García-Márquez, J.R., Krueger, T. 2018. A local perspective on drivers and measures to slow deforestation in the Andean-Amazonian foothills of Colombia. Land Use Policy 77, 379–391. DOI: 10.1016/j.landusepol.2018.04.04310.1016/j.landusepol.2018.04.043
International Law and Policy Institute - ILPI. 2014. Protection of the natural environment in armed conflict. Oslo. 68p. Online available at: https://ceobs.org/wp-content/uploads/2018/03/Protection-of-the-Natural-Environment-in-Armed-Conflict.pdf
Ingalls, M.L., Mansfield, D. 2017. Resilience at the periphery: Insurgency, agency and social-ecological change under armed conflict. Geoforum 84, 126–137. DOI: 10.1016/j.geoforum.2017.06.01210.1016/j.geoforum.2017.06.012
Jarrett, R. 2003. The environment: Collateral victim and tool of war. BioScience 53 (9), 880–882. DOI: 10.1641/0006-3568(2003)053[0880:TECVAT]2.0.CO;2
Jha, U., 2014. Armed Conflict and Environmental Damage. Vij Books India Pvt Ltd.
Kwarteng, A.Y. 1998. Multitemporal remote sensing data analysis of Kuwait’s oil lakes. Environment International 24 (1-2), 121–137. DOI: 10.1016/s0160-4120(97)00129-310.1016/S0160-4120(97)00129-3
Landholm, D.M., Pradhana, P., Kroppa, J.P. 2019. Diverging forest land use dynamics induced by armed conflict across the Tropics. Global Environmental Change 56, 86–94. DOI: 10.1016/j.gloenvcha.2019.03.00610.1016/j.gloenvcha.2019.03.006
Le Billon, P. 2001. The political ecology of war: natural resources and armed conflicts. Political Geography 20 (5), 561–584. DOI: 10.1016/s0962-6298(01)00015-410.1016/S0962-6298(01)00015-4
Leiterer, R., Bloesch, U., Wulfa, H., Eugster, S., Joerg, P, C. 2018. Vegetation monitoring in refugee-hosting areas in South Sudan. Applied Geography 93, 1-15. DOI: 10.1016/j.apgeog.2018.01.01310.1016/j.apgeog.2018.01.013
Levin, N., Ali, S., Crandall, D. 2018. Utilizing remote sensing and big data to quantify conflict intensity: The Arab Spring as a case study. Applied Geography 94, 1–17. DOI: 10.1016/j.apgeog.2018.03.00110.1016/j.apgeog.2018.03.001
Lodhi, M.A., Echavarria, F.R., Keithley, C. 1998. Using remote sensing data to monitor land cover changes near Afghan refugee camps in northern Pakistan. Geocarto International 13 (1), 33–39. DOI: 10.1080/1010604980935462610.1080/10106049809354626
Loucks, C., Mascia, M.B., Maxwell, A., Huy, K., Duong, K., Chea, N., Long, B., Cox, N., Seng, T. 2009. Wildlife decline in Cambodia, 1953–2005: exploring the legacy of armed conflict. Conservation Letters 2 (2), 82–92. DOI: 10.1111/j.1755-263X.2008.00044.x10.1111/j.1755-263X.2008.00044.x
Machlis, G.E., Hanson, T. 2008. Warfare ecology. Bioscience 58 (8), 729–736. DOI: 10.1641/B58080910.1641/B580809
Mendez, F., Valánszki, I. 2019. Trends in the use of remote sensing methods for the analysis of areas affected by armed conflicts. SZIEntific Meeting for Young Researchers - Ifjú Tehetségek Találkozója, 173–192.
McNeely, J. 2003. Conserving forest biodiversity in times of violent conflict. Oryx 37 (2), 142–152. DOI: 10.1017/S003060530300033410.1017/S0030605303000334
Monroy, D., Armenteras, D. 2017. Land cover change caused by alluvial mining on the Nechí River, Antioquia (Colombia). Gestión y Ambiente 20 (1), 50–61. DOI: 10.15446/ga.v20n1.6151310.15446/ga.v20n1.61513
Murad, C.A., Pearse, J. 2018. Landsat study of deforestation in the Amazon region of Colombia: Departments of Caquetá and Putumayo. Remote Sensing Applications: Society and Environment 11, 161–171. DOI: 10.1016/j.rsase.2018.07.00310.1016/j.rsase.2018.07.003
Nackoney, J., Molinario, G., Potapov, P., Turubanova, S., Hansen, M., Furuichi, T. 2014. Impacts of civil conflict on primary forest habitat in northern Democratic Republic of the Congo, 1990–2010. Biological Conservation 170, 321–328. DOI: 10.1016/j.biocon.2013.12.03310.1016/j.biocon.2013.12.033
Negret P.J., Sonter, L., Watson, J.E.M., Possingham, H.P., Jones K.R., Suarez, C., Ochoa-Quintero, J.M., Maron, M. 2019. Emerging evidence that armed conflict and coca cultivation influence deforestation patterns. Biological Conservation 239, 108176. DOI: 10.1016/j.biocon.2019.07.02110.1016/j.biocon.2019.07.021
Note, N., Gheyle. W., Van den Berghe, H., Saey, T., Bourgeois, J., Van Eetvelde, V., Van Meirvenne, M., Stichelbaut, B. 2018. A new evaluation approach of World War One’s devastated front zone: A shell hole density map based on historical aerial photographs and validated by electromagnetic induction field measurements to link the metal shrapnel phenomenon. Geoderma 310, 257–269. DOI: 10.1016/j.geoderma.2017.09.02910.1016/j.geoderma.2017.09.029
Omar S.A.S., Bath, N.R. 2009. Critical assessment of the environmental consequences of the invasion of Kuwait, the Gulf War, and the aftermath. In: Kassim T.A., Barceló D. (eds) Environmental Consequences of War and Aftermath. The Handbook of Environmental Chemistry, vol 3U. Springer, Berlin, Heidelberg, 141–170. DOI: 10.1007/978-3-540-87963-3_510.1007/978-3-540-87963-3_5
Ordway, E. M. 2015. Political shifts and changing forests: Effects of armed conflict on forest conservation in Rwanda. Global Ecology and Conservation 3, 448–460. DOI: 10.1016/j.gecco.2015.01.01310.1016/j.gecco.2015.01.013
Partow, H. 2008. Environmental impact of wars and conflicts. In: Tolba, M.K., Saab, N.W. (eds.) Arab environment: Future challenges. Arab Forum for Environment and Development, 159–172. Online available at: http://www.fao.org/fileadmin/user_upload/rome2007/docs/Arab_Environment_Future_Challenges.pdf
Pech, L., Lakes, T. 2017. The impact of armed conflict and forced migration on urban expansion in Goma: Introduction to a simple method of satellite-imagery analysis as a complement to field research. Applied Geography 88, 161–173. DOI: 10.1016/j.apgeog.2017.07.00810.1016/j.apgeog.2017.07.008
Petit, C., Scudder, T., Lambin, E. 2001. Quantifying processes of land-cover change by remote sensing: Resettlement and rapid land-cover changes in southeastern Zambia. International Journal. Remote Sensing 22 (17), 3435–3456. DOI: 10.1080/0143116001000688110.1080/01431160010006881
Potapov, P.V., Turubanova, S. A., Hansen, M. C., Adusei, B., Broich, M., Altstatt, A., Mane, L., Justice, C.O. 2012. Quantifying forest cover loss in Democratic Republic of the Congo, 2000–2010, with Landsat ETM+ data. Remote Sensing of Environment 122, 106–116. DOI: 10.1016/j.rse.2011.08.02710.1016/j.rse.2011.08.027
Qamer, F.M., Abbas, S., Saleem, R. Shehzad, K., Ali, H., Gilani, H. 2012. Forest cover change assessment in conflict-affected areas of northwest Pakistan: the case of Swat and Shangla Districts. Journal of Mountain Science 9 (3), 297–306. DOI: 10.1007/s11629-009-2319-110.1007/s11629-009-2319-1
Rincón Ruiz, A., Pascual, U., Romero, M. 2013. An exploratory spatial analysis of illegal coca cultivation in Colombia using local indicators of spatial association and socioecological variables. Ecological Indicators 34, 103–112. DOI: 10.1016/j.ecolind.2013.04.00810.1016/j.ecolind.2013.04.008
Rustad, S.C.A., Rød, J.K., Larsen, W., Gleditsch, N.P. 2008. Foliage and fighting: forest resources and the onset, duration, and location of civil war. Political Geography 27 (7), 761–782. DOI: 10.1016/j.polgeo.2008.09.00410.1016/j.polgeo.2008.09.004
Sánchez-Cuervo, A.N., Aide, T.M. 2013. Consequences of the armed conflict, forced human displacement, and land abandonment on forest cover change in Colombia: A multi-scaled analysis. Ecosystems 16 (6), 1052–1070. DOI: 10.1007/s10021-013-9667-y10.1007/s10021-013-9667-y
Sigismond A., Wilson, S.A., Wilson, C.O. 2013. Modelling the impacts of civil war on land use and land cover change within Kono District, Sierra Leone: a socio-geospatial approach. Geocarto International 28 (6), 476–501. DOI: 10.1080/10106049.2012.72445610.1080/10106049.2012.724456
Solomon, N., Birhane, E., Gordon, C., Haile, M., Taheri, F., Azadie, H., Scheffran, J. 2018. Environmental impacts and causes of conflict in the Horn of Africa: A review. Earth-Science Reviews 177, 284–290. DOI: 10.1016/j.earscirev.2017.11.01610.1016/j.earscirev.2017.11.016
Sosnowski, A., Ghoneim, E., Burke, J.J., Hines, E., Halls, J. 2016. Remote regions, remote data: A spatial investigation of precipitation, dynamic land covers, and conflict in the Sudd wetland of South Sudan. Applied Geography 69, 51–64. DOI: 10.1016/j.apgeog.2016.02.00710.1016/j.apgeog.2016.02.007
Stevens, K., Campbell, L., Urquhart, G., Kramer, D., Qi, J. 2011. Examining complexities of forest cover change during armed conflict on Nicaragua’s Atlantic Coast. Biodiversity and Conservation 20 (12), 2597–2613. DOI: 10.1007/s10531-011-0093-110.1007/s10531-011-0093-1
Stichelbaut, B., Gheyle, W., Saey, T., van Eetvelde, V., van Meirvenne, M., Note, N., van den Berghe, H., Bourgeois, J. 2016. The First World War from above and below. Historical aerial photographs and mine craters in the Ypres Salient. Applied Geography 66, 64–72. DOI: 10.1016/j.apgeog.2015.11.02010.1016/j.apgeog.2015.11.020
Suthakar, K., Bui, E.N. 2008. Land use/cover changes in the war-ravaged Jaffna Peninsula, Sri Lanka, 1984–early 2004. Singapore Journal of Tropical Geography 29 (2), 205–220. DOI: 10.1111/j.1467-9493.2008.00329.x10.1111/j.1467-9493.2008.00329.x
Tian, Y., Wu, B., Zhang, L., Li, Q., Jia, K., Wen, M. 2011. Opium poppy monitoring with remote sensing in North Myanmar. International Journal of Drug Policy 22 (4), 278–284. DOI: 10.1016/j.drugpo.2011.02.00110.1016/j.drugpo.2011.02.001
Uriarte, M., Schneider, L., Rudel, T.K., 2010. Land transitions in the tropics: going beyond the case studies. Biotropica 42 (1), 1–2. DOI: 10.1111/j.1744-7429.2009.00580.x10.1111/j.1744-7429.2009.00580.x
van der Meer, F., van der Werff, H., Jong, S.M. 2009. Pre-Processing of optical imagery in Warner, T.A., Nellis, M.D., Foody, G.M. (eds.) The SAGE Handbook of Remote Sensing. 55 City Road, London: SAGE Publications, Inc. DOI: 10.4135/9780857021052.n1610.4135/9780857021052.n16
van Etten, J., Jongerden, J., de Vos, H.J., Klaasse, A., van Hoeve E.C.E. 2008. Environmental destruction as a counterinsurgency strategy in the Kurdistan region of Turkey. Geoforum 39 (5), 1786–1797. DOI: 10.1016/j.geoforum.2008.05.00110.1016/j.geoforum.2008.05.001
Witmer, F.D.W. 2008. Detecting war-induced abandoned agricultural land in northeast Bosnia using multispectral, multitemporal Landsat TM imagery. International Journal of Remote Sensing 29 (13), 3805–3831. DOI: 10.1080/0143116080189187910.1080/01431160801891879
Witmer, F.D.W. 2015. Remote sensing of violent conflict: eyes from above. International Journal of Remote Sensing 36 (9), 2326–2352. DOI: 10.1080/01431161.2015.103541210.1080/01431161.2015.1035412