Abstract
Agricultural land cover and changes in its extent are directly related to human activities. The rapidly growing population in Nepal has resulted in an increasing trend of agricultural land expansion, and can be used to determine the long-term status of agricultural land cover via reconstruction. This decadal study considered spatially explicit agricultural area, statistical records, population density, soil types, and climate and topography datasets. We collected available datasets and revised them on the basis of a spatiotemporal reconstruction of agricultural land cover. The different datasets were based on 30 × 30 m grid cells used for agricultural land suitability and allocation models. This historical agricultural land reconstruction revealed an increasing trend in agricultural area from 37.03 to 43.88 (103 km2), between 1970 and 2010. In this period, the agricultural land expanded and agriculture became more intensified, especially in the southern and middle parts of the country. A slightly decreasing trend was found in areas surrounding big cities. The evaluation of the results of our reconstruction and a comparison with satellite-based data in 2010 confirmed that this study established an effective methodology. The results of the study were in agreement with the FAO, History Database of the Global Environment 3.1 and 3.2, and the range of differences was found closer. These reconstruction datasets were suitable for use in climatic impact assessments of agricultural land change, as well as carbon cycle and climate modeling studies.
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References
Andreae B, Gregor HF (1981) Farming, development and space: a world agricultural geography. De Gruyter, USA
Bahadur KC K, Pant LP, Fraser ED, Shrestha PK, Shrestha D, Lama A (2016) Assessing links between crop diversity and food self-sufficiency in three agroecological regions of Nepal. Reg Environ Chang 16:1239–1251. doi:10.1007/s10113-015-0851-9
Bastakoti RC, Shivakoti GP, Lebel L (2010) Local irrigation management institutions mediate changes driven by external policy and market pressures in Nepal and Thailand. Environ Manag 46:411–423. doi:10.1007/s00267-010-9544-9
Berg R, Carter DL (1980) Furrow erosion and sediment losses on irrigated cropland. J Soil Water Conserv 35:267–270
CBS (2012) National population and housing census 2011 (National Report) vol 1. Government of Nepal, National Planning Commission Secretariat, Central Bureau of Statistics, Kathmandu, Nepal
Chhetri N, Chaudhary P, Tiwari PR, Yadaw RB (2012) Institutional and technological innovation: understanding agricultural adaptation to climate change in Nepal. Appl Geogr 33:142–150. doi:10.1016/j.apgeog.2011.10.006
Dijkshoorn K, Huting J (2009) Soil and terrain database for Nepal (report). ISRIC–World Soil Information, Wageningen 21 p. with data set
Duley FL, Hays OE (1932) The effect of the degree of slope on run-off an soil erosion. J Agric Res 45:349–360
FAO (2016) FAO statistics. Food and Agriculture Organization of the United Nations (http://www.fao.org/faostat/en/#data/RL). Accessed 30 July 2016
Foley JA, DeFries R, Asner GP, Barford C, Bonan G, Carpenter SR, Chapin FS, Coe MT, Daily GC, Gibbs HK (2005) Global consequences of land use. Science 309:570–574. doi:10.1126/science.1111772
Fuchs R, Herold M, Verburg PH, Clevers JGPW (2013) A high-resolution and harmonized model approach for reconstructing and analysing historic land changes in Europe. Biogeosciences 10:1543–1559. doi:10.5194/bg-10-1543-2013
Gabet E, Burbank D, Pratt-Sitaula B, Putkonen J, Bookhagen B (2008) Modern erosion rates in the High Himalayas of Nepal. Earth Planet Sci Lett 267:482–494. doi:10.1016/j.epsl.2007.11.059
Gardner RAM, Gerrard AJ (2003) Runoff and soil erosion on cultivated rainfed terraces in the Middle Hills of Nepal. Appl Geogr 23:23–45. doi:10.1016/S0143-6228(02)00069-3
Gartaula HN, Chaudhary P, Khadka K (2014) Land redistribution and reutilization in the context of migration in rural Nepal. Land 3:541–556. doi:10.3390/land3030541
Gerrard J, Gardner R (2002) Relationships between landsliding and land use in the Likhu Khola drainage basin, Middle Hills, Nepal. Mt Res Dev 22:48–55. doi:10.1659/0276-4741(2002)022[0048:RBLALU]2.0.CO;2
Ghimire S, Higaki D, Bhattarai T (2013) Estimation of soil erosion rates and eroded sediment in a degraded catchment of the Siwalik Hills, Nepal. Land 2:370–391. doi:10.3390/land2030370
Giri A, Katzensteiner K (2013) Carbon and nitrogen flow in the traditional land use system of the Himalaya region, Nepal. Mt Res Dev 33:381–390. doi:10.1659/MRD-JOURNAL-D-13-00023.1
Harris I, Jones PD, Osborn TJ, Lister DH (2014) Updated high-resolution grids of monthly climatic observations—the CRU TS3.10 dataset. Int J Climatol 34:623–642. doi:10.1002/joc.3711
He F, Li S, Zhang X (2012) Reconstruction of cropland area and spatial distribution in the mid-Northern Song Dynasty (AD1004-1085). J Geogr Sci 22:359–370. doi:10.1007/s11442-012-0932-3
He F, Li S, Zhang X, Ge Q, Dai J (2013) Comparisons of cropland area from multiple datasets over the past 300 years in the traditional cultivated region of China. J Geogr Sci 23:978–990. doi:10.1007/s11442-013-1057-z
Houghton RA (1999) The annual net flux of carbon to the atmosphere from changes in land use 1850–1990. Tellus Series B Chemical and Physical Meteorology 51:298–313. doi:10.1034/j.1600-0889.1999.00013.x
Houghton RA (2003) Revised estimates of the annual net flux of carbon to the atmosphere from changes in land use and land management 1850–2000. Tellus Series B Chemical and Physical Meteorology 55:378–390. doi:10.1034/j.1600-0889.2003.01450.x
Kaplan JO, Krumhardt KM, Zimmermann N (2009) The prehistoric and preindustrial deforestation of Europe. Quat Sci Rev 28:3016–3034. doi:10.1016/j.quascirev.2009.09.028
Khanal NR, Watanabe T (2006) Abandonment of agricultural land and its consequences. Mt Res Dev 26:32–40. doi:10.1659/0276-4741(2006)026[0032:AOALAI]2.0.CO;2
Klein Goldewijk K (2001) Estimating global land use change over the past 300 years: the HYDE database. Glob Biogeochem Cycles 15:417–433. doi:10.1029/1999GB001232
Klein Goldewijk K (2016) A historical land use data set for the Holocene; HYDE 3.2 (replaced). Utrecht University, DANS. doi: 10.17026/dans-znk-cfy3
Klein Goldewijk K, Beusen A, Van Drecht G, De Vos M (2011) The HYDE 3.1 spatially explicit database of human induced global land use change over the past 12,000 years. Glob Ecol Biogeogr 20:73–86. doi:10.1111/j.1466-8238.2010.00587.x
Körner C (2007) The use of ‘altitude’ in ecological research. Trends Ecol Evol 22:569–574. doi:10.1016/j.tree.2007.09.006
Li S, He F, Zhang X (2016) A spatially explicit reconstruction of cropland cover in China from 1661 to 1996. Reg Environ Chang 16:417–428. doi:10.1007/s10113-014-0751-4
Lin S, Zheng J, He F (2009) Gridding cropland data reconstruction over the agricultural region of China in 1820. J Geogr Sci 19:36–48. doi:10.1007/s11442-009-0036-x
Liu M, Tian H (2010) China’s land cover and land use change from 1700 to 2005: estimations from high-resolution satellite data and historical archives. Glob Biogeochem Cycles 24:GB3003. doi:10.1029/2009GB003687
LRMP (1986) Land utilization report. Land resource mapping project, Kenting earth science Canada and department of topography, Government of Nepal
Malla G (2009) Climate change and its impact on Nepalese agriculture. The Journal of Agriculture and Environment 9:62–71. doi:10.3126/aej.v9i0.2119
Manandhar S, Vogt DS, Perret SR, Kazama F (2011) Adapting cropping systems to climate change in Nepal: a cross-regional study of farmers’ perception and practices. Reg Environ Chang 11:335–348. doi:10.1007/s10113-010-0137-1
MoAD (2013) Statistical information on Nepalese agriculture, time series information. Ministry of Agriculture Development, Government of Nepal
Moore ID, Burch GJ (1986) Physical basis of the length-slope factor in the universal soil loss equation. Soil Sci Soc Am J 50:1294–1298. doi:10.2136/sssaj1986.03615995005000050042x
Paudel B, Gao J, Zhang Y, Wu X, Li S, Yan J (2016a) Changes in cropland status and their driving factors in the Koshi River basin of the Central Himalayas, Nepal. Sustainability 8:933. doi:10.3390/su8090933
Paudel B, Zhang Y, Li S, Liu L, Wu X, Khanal NR (2016b) Review of studies on land use and land cover change in Nepal. J Mt Sci 13:643–660. doi:10.1007/s11629-015-3604-9
Pitman AJ, Avila FB, Abramowitz G, Wang YP, Phipps SJ, de Noblet-Ducoudre N (2011) Importance of background climate in determining impact of land-cover change on regional climate. Nature Clim Change 1:472–475. doi:10.1038/nclimate1294
Pongratz J, Reick C, Raddatz T, Claussen M (2008) A reconstruction of global agricultural areas and land cover for the last millennium. Glob Biogeochem Cycles 22:GB3018. doi:10.1029/2007GB003153
Qian C, Deyong Y, Matei G, Zhe H, Jianguo W (2015) Impacts of land use and land cover change on regional climate: a case study in the agro-pastoral transitional zone of China. Environ Res Lett 10:124025. doi:10.1088/1748-9326/10/12/124025
Ramankutty N, Foley JA (1999) Estimating historical changes in global land cover: croplands from 1700 to 1992. Glob Biogeochem Cycles 13:997–1027. doi:10.1029/1999GB900046
Ramankutty N, Foley JA (2010) ISLSCP II historical croplands cover, 1700–1992. In: Hall, Forest G, Collatz G, Meeson B, Los S, Brown de colstoun E, Landis D (eds) ISLSCP initiative II collection data set. ORNL distributed Active Archive Center, Tennessee, p 10. doi:10.3334/ORNLDAAC/966
Regmi MC (1976) Landownership in Nepal. University of California Press, USA
Regmi MC (1978) Land tenure and taxation in Nepal, vol 1-4. Ratna Pustak Bhandar, Kathamandu, Nepal
Rimal B, Baral H, Stork NE, Paudyal K, Rijal S (2015) Growing city and rapid land use transition: assessing multiple hazards and risks in the Pokhara Valley, Nepal. Land 4:957–978. doi:10.3390/land4040957
Thapa RB, Murayama Y (2009) Examining spatiotemporal urbanization patterns in Kathmandu Valley, Nepal: remote sensing and spatial metrics approaches. Remote Sens 1:534–556. doi:10.3390/rs1030534
Thapa RB, Murayama Y (2010) Drivers of urban growth in the Kathmandu Valley, Nepal: examining the efficacy of the analytic hierarchy process. Appl Geogr 30:70–83. doi:10.1016/j.apgeog.2009.10.002
Uddin K, Shrestha HL, Murthy MSR, Bajracharya B, Shrestha B, Gilani H, Pradhan S, Dangol B (2015) Development of 2010 national land cover database for the Nepal. J Environ Manag 148:82–90. doi:10.1016/j.jenvman.2014.07.047
Verburg PH, de Koning GHJ, Kok K, Veldkamp A, Bouma J (1999) A spatial explicit allocation procedure for modelling the pattern of land use change based upon actual land use. Ecol Model 116:45–61. doi:10.1016/S0304-3800(98)00156-2
Vitousek PM, Mooney HA, Lubchenco J, Melillo JM (1997) Human domination of Earth’s ecosystems. Science 277:494–499. doi:10.1126/science.277.5325.494
Zhang X, He F, Li S (2013) Reconstructed cropland in the mid-eleventh century in the traditional agricultural area of China: implications of comparisons among datasets. Reg Environ Chang 13:969–977. doi:10.1007/s10113-012-0390-6
Acknowledgements
This research was financially supported by the Natural Science Foundation of China (Grant No. 41371120), the Chinese Academy of Sciences—The World Academy of Sciences (CAS-TWAS) President’s Fellowship Program for PhD study, and the International Partnership Program of the Chinese Academy of Sciences (Grant No. 131C11KYSB20160061). We are thankful to Dr. Linshan Liu and Dr. Zhaofeng Wang of the IGSNRR, and Prof. Dr. Narendra Raj Khanal of the Central Department of Geography, Tribhuvan University, Nepal, for their help, comments, and guidance during this study. The authors are grateful to the editors and anonymous reviewers for their constructive comments and suggestions.
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Editor: Wolfgang Cramer
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Paudel, B., Zhang, Y., Li, S. et al. Spatiotemporal reconstruction of agricultural land cover in Nepal from 1970 to 2010. Reg Environ Change 17, 2349–2357 (2017). https://doi.org/10.1007/s10113-017-1164-y
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DOI: https://doi.org/10.1007/s10113-017-1164-y