Using landsat data to monitor the land cover change in vientiane capital, lao pdr

THAI NGUYEN UNIVERSITY UNIVERSITY OF AGRICULTURE AND FORESTRY NAMKHO SONGKHAM USING LANDSAT DATA TO MONITOR THE LAND COVER CHANGE IN VIENTIANE CAPITAL, LAO PDR BACHELOR THESIS Study mode : Full-Time Major : Environmental Science and Management Faculty : International Program Office Batch : ESM48 (2017 – 2020) Thai Nguyen, 8th September 2021 DOCUMANTATION PAGE AND ABSTRACT Thai Nguyen University of Agriculture and Forestry Degree Program Bachelor of Environmental Science and Management Student Name NAMKHO SONGKHAM Student Name DTN1554290051 Thesis title USING LANDSAT DATA TO MONITOR THE LAND COVER CHANGE IN VIENTIANE CAPITAL, LAO PDR Supervisor (s) NGUYEN VAN HIEU GEOINFORMATIC RESEARCH CENTER Supervisor signature (s) Nguyen Van Hieu Land cover change is the significant to arrange of scale and problems center to global change study In order to monitor change in land cover, gathering the data by using intensive desktop for analysis land cover in particular area by using land satellite image, land satellite image bring a benefit for many proposes especially analysis area without time-travelling Vientiane is located on center of Lao PDR and considered as capital of Lao PDR this capital is also a development area By using ArcGIS software to classify a land cover types by using supervised classification The result illustrates the decreasing of forest area and increase in built-up scale In term of environmental impacts, extending of settling area is the factor of urban population growth which leads to environment issues This research will gather a result and provide a changing detail on land cover in Vientiane and in provision of development plan to mitigate the issues that probably happen in the future i Keywords Land cover, Land cover change, GIS, Urbanization, Landsat image, Vientiane Lao, USGS Number of Pages 56 Submission date ii ACKNOWLEDGEMENT I would like to express the deepest appreciation to my supervisor, Mr Nguyen Van Hieu, who has the attitude and substance of a genius For this patience, motivation, enthusiasm, and immense knowledge His suggestion helped me in all the time of the research and conducting of this thesis Without his advice and persistent help this thesis would not have been possible Besides my supervisor, I would like to thank the rest of my thesis committee: Mr Bui Minh Tung For his cooperation and suggestion to my thesis about comment and question Moreover, I would like to say thank you to Geoinformatics Research Center (GIRC) for offering a chance to conduct research Last but not least, I would like to thank my family, my parent Kay Namkho and Sonechan Namkho For giving birth to me at the first place as well as encouragement and support throughout my life iii TABLE OF CONTENT DOCUMANTATION PAGE AND ABSTRACT i ACKNOWLEDGEMENT .iii TABLE OF CONTENT iv LIST OF FIGURES vii LIST OF TABLES viii LIST OF ABBREVIEATION ix PART I INTRODUCTION 1.1 Research Rationale 1.2 Research Questions and Hypothesis 1.3 Research Objective 1.4 Significance of Study 1.5 Scope and Limitations 1.6 Definitions PART II LITERATURE REVIEW 2.1 Urbanization 2.2 Urbanization in Vientiane 11 2.3 Land use and Land cover study 14 PART III METHODOLOGY 18 3.1 Materials and Methods 18 3.2 Study area 19 iv 3.3 Introduction to the preprocessing 20 3.4 Software used in this study 20 3.5 Data collection 20 3.6 Band combination 21 3.7 Image clip 24 3.8 Image analysis and classification 25 3.9 Supervised classification 26 PART IV RESULT 28 4.1 Land Cover Map In 2000 28 4.2 Land cover map in 2013 29 4.3 The land cover map of 2020 30 4.4 Land cover between 2000 and 2013 31 4.5 Land cover between 2013 and 2020 34 4.6 Land cover between 2000 and 2020 37 4.7 Land cover change in Vientiane from 2000 and 2020 39 4.8 Field survey 42 PART V DISCUSSION 44 5.1 How has land use in Vientiane changed from 2000 to 2020 44 5.2 Reason Behind Land Use Changes in Vientiane 45 5.3 Urbanization and Its Impacts on the Environment: the case of Vientiane, Laos 47 v 5.4 Implications for Urban Planning and Management: 50 PART VI CONCLUSION 53 REFERENCES 55 vi LIST OF FIGURES Figure 3.1 Flowchart of the methodology 18 Figure 3.2 Study area Vientiane 19 Figure 3.3 Process of band combination .23 Figure 3.4 Band combination completed 23 Figure 3.5 Clipping image process using Vientiane boundary 24 Figure 3.6 Taking training samples .27 Figure 3.7 Types of samples 27 Figure 4.1 Vientaine’s land cover map in 2000 28 Figure 4.2 Vientaine’s land cover map in 2013 29 Figure 4.3 Vientaine’s land cover map in 2020 30 Figure 4.4 Land cover Vientiane 2000 and 2013 31 Figure 4.5 Graph of land cover change 2000 and 2013 32 Figure 4.6 Land cover Vientiane 2013 and 2020 34 Figure 4.7 Comparison graph of land cover 2013 and 2020 .35 Figure 4.8 Land cover of Vientiane 2000 and 2020 .37 Figure 4.9 Comparison graph of land cover 2000 and 2020 .38 Figure 4.10 Land cover change map of Vientiane .39 Figure 4.11 Graph of Land cover change 41 Figure 4.12 Google Earth image of December 2000 and February 2020 42 vii LIST OF TABLES Table 3.1 Data sources 21 Table 3.2 Band combination for natural color (ESRI) 22 Table 4.1 Details of land use of Vientiane in 2000 .29 Table 4.2 Details of land use of Vientiane in 2013 .30 Table 4.3 Details of land use of Vientiane in 2020 .31 Table 4.4 Details of land use of Vientiane 2000 and 2013 32 Table 4.5 Details of land use of Vientiane 2013 and 2020 35 Table 4.6 Details of land use of Vientiane in 2000 and 2020 .38 Table 4.7 Details of land cover change in Vientiane 2000 and 2020 40 viii LIST OF ABBREVIEATION CAC Center for Clean Air Coalition CIA Central Intelligence Agency EC Electrical Conductivity GDP Gross Domestic Product GGGI Global Green Growth Institute GIS Geo Informatic System GMS Greater Mekong Subregion HA Hectare JICA Japan International Cooperation Agency Lao PDR Lao People Democratic Republic LC Land Cover LST Land Surface Temperature MRC Mekong River Commission NOAA National Oceanic and Atmospheric Administration RS Remote Sensing USGS United States Geological Survey UTM Urchin Tracking Module WGS World Geodetic System WHO World Health Organization µm Micrometer ix surged, especially the demand of energy and electricity Shahbas et al (2016) suggested that the population growth according to the urbanization and/or overpopulation influenced in the higher demand for energy, same as the economic and technology development did Consequently, the city faces the issues of overconsumption and with causes several issues towards the environment such as food waste, excessive energy demand and so on The problem coming along with the higher consumption is excessive waste generation Reported by GGGI (2017) Having in consideration the city population, indicate waste generation figures as 600 ton per day Such amount is insanely affecting to the environment in the city in many perspectives In Laos, according from the report of CCAC (2016), Citizen in Vientiane generated waste in estimation at 0.65 kg per person per day This is considered a massive amount and its impacts could lead to the severe problem including the lack of proper management, unpleasant scenery, and so on Open dumps are also responsible for the blockage of drains, breeding of flies and spread of epidemic diseases (Ejaz et al., 2010) 5.4 Implications for Urban Planning and Management: Aside from an increasing in built-up area and potential environmental impacts of urbanization in Vientiane, the population of Vientiane has been on an increase and expected to increase in the following decades According to UNHabitat (2020), half of the urban population of Laos is concentrated in Vientiane capital and those are expected to increase by 7% to reach 1.4 million by 2045 All of these calls for urban planning and management to ensure the urban development 50 in Vientiane is sustainable In this research, the author suggests that the urban development of Vientiane should be aligned with the improvement of better urban planning, adequate provision of infrastructure and services, concern about environmental issues The prominent issue in urban expansion in Laos is caused by poor urban planning and management which follows the urban development plan prepared since 1990s and 2000s (Bosoni et al., 2018) This results in lack of zoning, leading to the mixture of residential and industrial areas (UN-habitat, 2020) Indeed, urban planning is significant for the city leaders to sustainable development It assists the efficiency of budget utilization for infrastructure and service investment The lack of updated and efficient urban planning and management of Laos in general requires the urgent need for a country to create one Urban planning and management should integrate UN’s Sustainable Development Framework, specifically SDG 11 whose aim is to make cities inclusive, safe, resilient, and sustainable Moreover, there needs to be a an improve of basic infrastructure and services in Vientiane Despite the spatial expansion of urban area but it does not mean that the area is modernized According to Chen et al (2014) the speed of urban expansion does not always result in economic development In the case of Vientiane, there has been a rapid growth in the number of private automobiles (UN-Habitat, 2020), but the development of roads is not in the same pace Therefore, the expansion and introduction of new routes should be considered It is worth to acknowledge that in 2021, there has been report on an upgrade of roads 51 and infrastructures, such as the upgrade of nine roads and the provision of garbage collection bins for more than 150 villages in Vientiane capital by the City Planning Officials Thanabouasy (2021) This kind of provision should be encouraged and continued for the sustainable urbanization in the future Nevertheless, regarding the improvement of the road’s conditions, the City Planning Officials should also consider in planning and constructing new routes to accommodate the increasing numbers of private vehicles as the population continues to grow in the future As discussed earlier about the environmental impacts of urbanization, Vientiane capital should incorporate the concept which integrates all the three bottom lines (environment, society, and economy) into its city development 52 PART VI CONCLUSION In conclusion, this report aims to study the state of urbanization in Vientiane, which is the capital city of Laos As can be seen from the result the land use has been changed steadily in the course of 20 years from 2000 to 2020 In general, most of the area of Vientiane has been covered by the forest and agricultural land However, forest and agricultural area have been on the decline, while the built-up area continue to increase By using the Landsat data in the supervised classification tool using ArcGIS software, an author can answer research questions to some extent, especially regarding to changes in land cover area an additional information such as reasons behind the changes, and environmental impacts of these changes are gathered through an intensive desktop research as it is the most convenient form of research during the pandemic Reasons to changes in land cover are believed to be the result of economic development and urbanization which is seen from an increase in GDP growth Nevertheless, urbanization is known to have adverse environmental impacts such as air and water pollution and increasing consumption and waste generation With the increase in built-up area, concerning environmental impacts and growing urban population, it calls for the introduction of new and efficient urban planning and management, provision of adequate infrastructures and services with consideration on environmental issues Limitation: It is worth to acknowledge some limitations of this study Firstly, regarding the classification of land-cover, even though remote sensing and GIS data provide accurate data (Reis, 2018), but some flaws could occur during the 53 classification in the software To make it more accurate, it should be the field surveys to confirm what type of area that is locating Secondly, there is not many information available, especially regarding the context of urbanization in Laos Indeed, in general, the number of publications about Laos are low due to the lack of access itself, incentive, and language proficiency (Clarkeet al., 2015) 54 REFERENCES Adam Augustyn, Patricia Bauer (2016) Vientiane Barney Cohen Urbanization in developing countries: Current trends,future projections, and key challenges for sustainability 2006 Basnyat, B (2009) Impacts of Demographic Changes on Forests and Forestry in Asia and The Pacific Available at http://www.fao.org/3/am253e/am253e.pdf Bakr, N., Weindorf, D C., Bahnassy, M H., Marei, S M and EI-Badawi, M M (2010), Monitoring land cover changes in a newly reclaimed area of Egypt using multi-temporal Landsat data, Applied Geography, 30: (4), pp 592605 Bosoni, N., Epprecht, M., & Hayward, D (2018, December) Urbanization processes in the Lao PDR: Process- es, challenges, and opportunities Centre for Development and Environment (CDE) http://laofab.org/ document/view/4166# Brindha, K., Pavelic, P., & Sotoukee, T (2018) Environmental assessment of water and soil quality in the Vientiane Plain, Lao PDR Groundwater for Sustainable Development doi:10.1016/j.gsd.2018.08.005 Center for Clean Air Coalition (CCAC), 2015 “Solid Waste Management City Profile – Vientiane Capital, LAO People’s Democratic Republic”, http://www.waste.ccacoalition.org/sites/default/files/files/vientiane_city_profile_vientiane_capital_lao.pdf Chen, M., Zhang, H., Liu, W., & Zhang, W (2014) The global pattern of urbanization and economic growth: evidence from the last three decades PloS one, 9(8), e103799 https://doi.org/10.1371/journal.pone.0103799 Cao, H., Liu, J., Chen, J., Gao, J., Wang, G., & Zhang, W (2019) Spatiotemporal patterns of urban land use change in typical cities in the Greater Mekong Subregion (GMS) Remote Sensing, 11(7) doi:10.3390/rs11070801 55 10 Centre for Development ad Environment, U o B (2018) Urbanization processes in the Lao PDR: Processes, challenges, and opportunities Retrieved from Switzerland: https://www.shareweb.ch/site/PovertyWellbeing/currentpovertyissues/Documents/Lao_Urbanization_Study_CDE_final.p df 11 CIA (2019) The World Factbook: Laos Washington, DC: Central Intelligence Agency Retrieved from https://www.cia.gov/library/publications/theworld-factbook/attachments/summaries/ LA-summary.pdf 12 Clarke, Elizabeth & Grünbühel, Clemens & Souvannachak, Chintana & Keoka,Khamlouang & Latsany, Latsany (2015) Research capacity and science to policy processes in Lao PDR: An initial study 10.13140/RG.2.1.4782.9845 13 Coops, N.C., Wulder, M.A and Iwanicka, D (2009) "Large area monitoring with a MODIS-based Disturbance Index (DI) sensitive to annual and seasonal variations" Remote Sensing of Environment, 113(6): 1250-1261 14 Congalton, R G (2015) “Assessing positional and thematic accuracies of maps generated from remotely sensed data,” in Remotely Sensed Data Characterization, Classification, and Accuracies, ed P Thenkabail, (Boca Raton, FL: CRC Press), 583–601 15 DIANA EASTMAN (2018) The A to Z of Land Uses: Understanding Land-Use Specifics 16 Ellis, E.Land-use and Land-cover Change In: Encyclopedia of Earth; Cutler, J., Ed.; Environmental Information Coalition, National Council for Science and the Environment: Washington, DC, USA, 2010 17 Ford KL, Harris JR, Shives R, Carson J, and Buckle J (2008a) Gamma ray spectrometry In: Harris JR (ed.) Remote Predictive Mapping: An Aid for Northern Mapping 56 18 Faruquee, Mahmud & Khan, Manzurul & Karim, Md & Khan, N & Yasmin, Rabeya & Dutta, Shanta & Ahmad, Sk Akhtar (2014) Water Pollution by Industrial Effluent and its Impact on Human Health 19 Grimm, N B., Faeth, S H., Golubiewski, N E., Redman, C L., Wu, J., Bai, X., & Briggs, J M (2008) Global Change and the Ecology of Cities Science, 319(5864), 756–760 doi:10.1126/science.1150195 20 GGGI, 2017 “Summary Report of GGGI’s Green City Scoping Mission, 21-23 February 2017” Unpublished document 21 Ghazoul, J (2013) Deforestation and Land Clearing In: Levin, S.A In (pp 447456) Academic Press, Waltham: Encyclopedia of Biodiversity 22 Garba, Zaharaddeen (2011) Domestic Water Pollution among Local Communities in Nigeria Causes and Consequences European Journal of Scientific Research 52 592-603 23 García-Ruiz, José M & Lana-Renault, N (2011) Hydrological and Erosive Consequences of Farmland Abandonment in Europe, with Special Reference to the Mediterranean Region—A Review Agriculture Ecosystems & Environment - AGR ECOSYST ENVIRON 140 317-338 10.1016/j.agee.2011.01.003 24 Hu, Y., Batunacun, Zhen, L et al Assessment of Land-Use and Land-Cover Change in Guangxi, China 2019 25 Ha, T V., Tuohy, M., Irwin, M., & Tuan, P V (2020) Monitoring and mapping rural urbanization and land use changes using Landsat data in the northeast subtropical region of Vietnam The Egyptian Journal of Remote Sensing and Space Science,23(1), 11-19 doi:10.1016/j.ejrs.2018.07.001 26 Hasan, S., Shi, W., Zhu, X., & Abbas, S (2019) Monitoring of Land Use/Land Cover and Socioeconomic Changes in South China over the Last 57 Three Decades Using Landsat and Nighttime Light Data Remote Sensing,11(14), 1658 doi:10.3390/rs11141658 27 Hou, Z., Xu, Q., Nuutinen, T and Tokola, T (2013) "Extraction of remote sensing-based forestmanagement units in tropical forests" Remote Sensing of Environment, 130: 1-10 28 Islam, K.; Jashimuddin, M.; Nath, B.; Nath, T.K Land use classification and change detection by using multi-temporal remotely sensed imagery: The case of Chunati wildlife sanctuary, Bangladesh.Egypt J.Remote Sens Space Sci.2018 29 JICA (2011) The Project for Urban Development Master Plan Study in Vientiane Capital Retrieved from http://open_jicareport.jica.go.jp/pdf/12023693_01.pdf 30 J.A Foley, R DeFries, G.P Asner, C Barford, G Bonan, S.R Carpenter, F.S Chapin, M.T Coe, G.C Daily, H.K Gibbs, J.H Helkowski, T Holloway, E.A Howard,C.J Kucharik,C.Monfreda,J.A.Patz,I.C.Prentice,N.Ramankutty, P.K Snyder, Global consequences of land use, Science 309 (2005) 31 Jillian Mackenzie (2016) Air Pollution: Everything You Need to Know 32 Kevin butler (2013) Imagery & Remote Sensing Retrieved from https://www.esri.com/arcgis-blog/products/product/imagery/band-combinations-forlandsat-8 33 Kuenzer, C Remote sensing the Mekong.Int J Remote Sens.2014 34 Lambin EF, Geist HJ Land use and land cover change: Local processes and global impacts Environmental Sciences 2006;1:1-8 35 Lao Statistics Bureau (2016) Results of the population and housing census 2015 Vientiane, Laos: Lao Statistics Bureau 36 Liu, Z., He, C., Zhou, Y., Wu, J., 2014 How much of the world’s land has been urbanized, really? A hierarchical framework for avoiding confusion Landscape Ecol 58 37 Mottet, A.; Ladet, S.; Coque, N.; Gibon, A Agricultural land-use change and its drivers in mountain landscapes: A case study in the Pyrenees Agric Ecosyst Environ.2006,114, 296–310 38 Mawenda, J., Watanabe, T., & Avtar, R (2020) An Analysis of Urban Land Use/Land Cover Changes in Blantyre City, Southern Malawi (1994– 2018).Sustainability,12(6), 2377 doi:10.3390/su12062377 39 MoNRE, IUCN (2016) Fifth National Report to the United Nations Convention on Biological Diversity – DFRM-MoNRE and Technical support: IUCN - Vientiane, Lao PDR 40 MRC (2014) Crop Production for Food Security and Rural Poverty - Baseline and Pilot Modeling Vientiane: Mekong River Commission 41 Mitchell, J F B (1989) The “Greenhouse” effect and climate change Reviews of Geophysics, 27(1), 115 doi:10.1029/rg027i001p00115 42 Ministry of Agriculture and forestry (2012) Laos census of agriculture 2010/11 highlights Vientiane: ministry of agriculture and forestry and the food and agriculture organization of the united nation (FAO) 43 Melissa Denchak (2018) Water Pollution: Everything You Need to Know Retrieved from: https://www.nrdc.org/stories/water-pollution-everything-you-need-know 44 MassDEP (2016) Health & Environmental Effects of Air Pollution Health Effects Retrieved from https://www.mass.gov/files/documents/2016/08/vl/health-and-env-effects-airpollutions.pdf 45 Mekong River Commission (2020) Flood and drought remain key challenges for the Mekong: Report (n.d.) Retrieved from http://www.mrcmekong.org/news-andevents/news/annual-report-2019-pr/ 59 46 NOAA (2020) What is the difference between land cover and land use? 47 Nath, B., Niu, Z., & Singh, R (2018) Land Use and Land Cover Changes, and Environment and Risk Evaluation of Dujiangyan City (SW China) Using Remote Sensing and GIS Techniques Sustainability, 10(12), 4631 48 N Ejaz, N Akhtar, H Nisar & U Ali Naeem (2010) Environmental Impacts of Improper Solid Waste Management in Developing Countries: A Case Study of Rawalpindi City doi:10.2495/SW100351 49 Okamoto, K., Sharifi, A., & Chiba, Y (2014) The impact of urbanization on land use and the changing role of forests in Vientiane In Advances in Asian HumanEnvironmental Research (pp 29-38) 50 Palamuleni LG Land cover change and hydrological regimes in the Shire River Catchment, Malawi [doctoral dissertation] Johannesburg: University of Johannesburg; 2009 51 Personal interventions and risk communication on air pollution Geneva: World Health Organization ; 2020 License : CC BY-NC-SA 3.0 IGO 52 Phengkhamla Phonvisai Urban Wastewater and Sanitation Situation in Vientiane, Lao PDR, 2010 Retrieved from http://www.wepa-db.net/pdf/0712forum/paper42.pdf 53 Praveen Kumar Mallupattu, Jayarama Reddy Sreenivasula Reddy, "Analysis of Land Use/Land Cover Changes Using Remote Sensing Data and GIS at an Urban Area, Tirupati, India", The Scientific World Journal, vol 2013, Article ID 268623, pages, 2013 54 Paul, B K., & Rashid, H (2017) Land Use Change and Coastal Management Climatic Hazards in Coastal Bangladesh 60 55 Phompila, C., Lewis, M., Ostendorf, B., & Clarke, K (2017) Forest Cover Changes in Lao Tropical Forests: Physical and Socio-Economic Factors are the Most Important Drivers 56 Rafiqui, P S., & Gentile, M (2009) Vientiane Cities, 26(1), 38-48 doi:https://doi.org/10.1016/j.cities.2008.10.002 57 Richards J.A (2013) Supervised Classification Techniques In: Remote Sensing Digital Image Analysis Springer, Berlin, Heidelberg https://doi.org/10.1007/9783-642-30062-2_8 58 Reis, S (2008) Analysing Land Use/Land Cover Changes Using Remote Sensing and GIS in Rise, North-East Turkey.Sensors,8(10), 6188-6202 doi:10.3390/s8106188 59 Su, S.; Xiao, R.; Jiang, Z.; Zhang, Y Characterizing landscape pattern and ecosystem service value changes for urbanization impacts at an eco-regional scale.Appl Geogr.2012, 60 Seto, K.C., Fragkias, M., Güneralp, B., Reilly, M.K., 2011 A meta-analysis of global urban land expansion 61 Su, C.H.; Fu, B.J.; Lu, Y.H.; Lu, N.; Zeng, Y.; He, A.; Lamparski, H.L Land use change and anthropogenic driving force: A case study in Yanhe River Basin.Chin Geogr Sci.2011 62 Shahbas, M., Chaudhary, A R., & Ozturk, I (2016) Does urbanization cause increasing energy demand in Pakistan? Empirical evidence from STIRPAT model MPRA Paper No 70313 Available on https://mpra.ub.uni-muenchen.de/70313/ accessed September 2021) 63 Sultan RM The impacts of agricultural expansion and interest groups on deforestation: An optimal forest control model International Journal of Agricultural Resources, Governance and Ecology 2016;12(2):137-154 61 64 Sharifi, A., Chiba, Y., Okamoto, K., Yokoyama, S., & Murayama, A (2014) Can master planning control and regulate urban growth in Vientiane, Laos? Landscape and Urban Planning, 131, 1-13 doi:10.1016/j.landurbplan.2014.07.014 65 Sebastian Koch, The struggle over Lao PDR’s forests:New opportunities for improved forest governance? (2017) 66 Swaen, B (2015, December 07) Developing a Conceptual Framework for Research (Sample) Retrieved from https://www.scribbr.com/dissertation/conceptual-framework/ 67 THIPPHACHANH SOUPHIHALATH, Spatial Assessment of Land Cover Change and Ecosystem Services from a Case Study in Savannakhet Province, Laos 2017 68 Thanabouasy, P (2021) Vientiane Capital to Upgrade Roads and Infrastructure The Laotian Times Retrieved from https://laotiantimes.com/2021/07/09/vientianecapital-to-upgrade-roads-and-infrastructure/ 69 The Lancet Commission on pollution and health (2017) Retrieved from https://www.thelancet.com/commissions/pollution-and-health 70 United Nations World urbanization prospects: the 2003 revision Data tables and highlights New York: United Nations; 2004 71 United Nation (2018) World Urbanization Prospects The 2018 revision Department of Economic and Social Affair Now York: United Nation 72 UNSD (2017) UNdata http://data.un.org/ Accessed Jan 2017Vagnetti R, Miana P, Fabris M, Pavoni B (2003) Self-purification ability of a resurgence stream 73 UN-Habitat (2020) Position Paper - Urbanization: A Rapidly Emerging Development Issue for Lao PDR – An analytical input for the Common Country Assessment Available at 62 https://www.fukuoka.unhabitat.org/docs/publications/pdf/habitat_newsletter/1_Urb anization_Rapidly_Emerging_Development_Issue_for_Lao_PDR_paper_APA.pdf 74 United Nations Population Division (2015) World Urbanization Pros-pects: The 2014 Revision Lao PDR Economic Monitor Mid-Year Update May 2010 75 Viravong, M S (1964) History of Laos Paragon Book Reprint Corp, New York White Lotus (2000) The French in Indochina, With a Narrative of Garnier’s Exporations in Cochinachina, Annam and Tonkin.White Lotus Press, Bangkok 76 Vongpraseuth, T (2014) The Transformation of the Urban Form in Vientiane, Laos Journal of Korea Planners Association,49(4), 37 doi:10.17208/jkpa.2014.07.49.4.37 77 Verberg, P H., Neumann, K., and Nol, L (2011) Challenges in using land use and land cover data for global change studies Global Change Biol 78 Vientiane Times (2019) Pollution at hazardous levels in Vientiane Retrieved from http://www.vientianetimes.org.la/freeContent/FreeConten_Pollution_at_63.php 79 Vongvilay, X., Shin, J., Kang, Y., Kim, E., & Choi, J (2015) The Influence of French Colonial Rule on Lao Architecture with a Focus on Residential Buildings Journal of Asian Architecture and Building Engineering,14(2), 279-286 doi:10.3130/jaabe.14.279 80 World Bank Group, 2015 East Asia’s changing urban landscape Measuring a decade of special growth Avail-able from: http://www.worldbank.org/content/dam/Worldbank/Publications/Urban%20Develo pment/EAP_Urban_Expansion_full_report_web.pdf 81 World Bank Lao Office, 2010 82 World Bank (2006) Lao PDR: Rural and Agriculture Sector Issues Paper Available at 63 https://documents1.worldbank.org/curated/en/295881468300856900/pdf/375660LA 0Rural1ctor0Issues01PUBLIC1.pdf 83 Watt, A (2020) Land-Use Intensity and Land-Use Change: Impacts on Biodiversity Life on Land 84 Xiao, H., & Weng, Q (2007) The impact of land use and land cover changes on land surface temperature in a karst area of China Journal of Environmental Management 64