Abstract
The assessment of landslide susceptibility often overlooks the influence of forests on shallow landslide mobility, despite its significance. This study delved into the impact of forest presence on shallow landslide mobility during intense rainfall in Mengdong, China. Field investigations were coupled with the analysis of pre- and post-rainfall remote sensing (RS) images to delineate landslides. The ratio of landslide height (H) to travel distance (L) from a digital elevation model (DEM) were used to calculate landslides mobility. Preceding the event, forest coverage was evaluated using the normalized difference vegetation index (NDVI) derived from multiband RS image. The research identified 1531 shallow landslides in the area, revealing a higher concentration of landslides on slopes with elevated NDVI. Results indicated that disparities in soil permeability and cohesion, generating pore water pressure (PWP), triggered clusters of shallow landslides. Shallow landslides exhibit a higher propensity on slopes with elevated NDVI. The dimensions (height and area) of these identified shallow landslides typically exhibit a positive correlation with NDVI, consequently resulting in longer travel distances for landslides occurring on higher NDVI slopes. The average H/L ratio of all identified landslides was about 0.63. H/L generally increases with NDVI and decreases with landslide area. However, due to river channel restrictions, the H/L increases with slope gradient. The findings suggest that the high permeability of areas with tree roots poses a risk to the shallow stability of slopes, yet trees contribute to mitigating landslide mobility.
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References
Aaron J, McDougall S (2019) Rock avalanche mobility: the role of path material. Eng Geol 257:105126. https://doi.org/10.1016/j.enggeo.2019.05.003
Alam M (2022) Influence of drainage and root biomass on soil mechanical behavior in triaxial tests. https://doi.org/10.1007/s11440-021-01380-w
Almalki R, Khaki M, Saco PM, Rodriguez JF (2022) Monitoring and mapping vegetation cover changes in arid and semi-arid areas using remote sensing technology: a review. Remote Sensing 14:5143. https://doi.org/10.3390/rs14205143
ASTM (2017) Standard practice for classification of soils for engineering purposes (Unified Soil Classification System). ASTM international
Basharat M, Rohn J (2015) Effects of volume on travel distance of mass movements triggered by the 2005 Kashmir earthquake, in the Northeast Himalayas of Pakistan. Nat Hazards 77:273–292. https://doi.org/10.1007/s11069-015-1590-4
Bathurst JC, Moretti G, El-Hames A et al (2007) Modelling the impact of forest loss on shallow landslide sediment yield, Ijuez river catchment, Spanish Pyrenees. Hydrol Earth Syst Sci 11:569–583. https://doi.org/10.5194/hess-11-569-2007
Beguería S (2006) Changes in land cover and shallow landslide activity: a case study in the Spanish Pyrenees. Geomorphology 74:196–206. https://doi.org/10.1016/j.geomorph.2005.07.018
Berger C, McArdell BW, Schlunegger F (2011) Sediment transfer patterns at the Illgraben catchment, Switzerland: implications for the time scales of debris flow activities. Geomorphology 125:421–432. https://doi.org/10.1016/j.geomorph.2010.10.019
Bessette-Kirton EK, Coe JA, Schulz WH et al (2020) Mobility characteristics of debris slides and flows triggered by Hurricane Maria in Puerto Rico. Landslides 17:2795–2809. https://doi.org/10.1007/s10346-020-01445-z
Brardinoni F, Slaymaker O, Hassan MA (2003) Landslide inventory in a rugged forested watershed: a comparison between air-photo and field survey data. Geomorphology 54:179–196. https://doi.org/10.1016/s0169-555x(02)00355-0
Bunn JT, Montgomery DR (2004) Patterns of wood and sediment storage along debris-flow impacted headwater channels in old-growth and industrial forests of the western Olympic Mountains, Washington. In: Vegetation Riparian, Geomorphology Fluvial (eds) Riparian Vegetation and Fluvial Geomorphology. American Geophysical Union (AGU). pp 99–112
Burroughs ER, Thomas BR (1977) Declining root strength in Douglas-fir after felling as a factor in slope stability. Intermountain Forest and Range Experiment Station, Forest Service, U.S. Dept. of Agriculture
Carman PC (1937) Fluid flow through granular beds. Trans Inst Chem Eng London 15:150–166
Cislaghi A, Alterio E, Fogliata P et al (2021) Effects of tree spacing and thinning on root reinforcement in mountain forests of the European Southern Alps. For Ecol Manage 482:118873. https://doi.org/10.1016/j.foreco.2020.118873
Cislaghi A, Bischetti GB (2019) Source areas, connectivity, and delivery rate of sediments in mountainous-forested hillslopes: a probabilistic approach. Sci Total Environ 652:1168–1186. https://doi.org/10.1016/j.scitotenv.2018.10.318
Cislaghi A, Chiaradia EA, Bischetti GB (2017) Including root reinforcement variability in a probabilistic 3D stability model. Earth Surf Proc Land 42:1789–1806. https://doi.org/10.1002/esp.4127
Collins BD, Reid ME (2020) Enhanced landslide mobility by basal liquefaction: the 2014 State Route 530 (Oso), Washington, landslide. GSA Bull 132:451–476. https://doi.org/10.1130/b35146.1
Davies TR, McSaveney MJ, Hodgson KA (1999) A fragmentation-spreading model for long-runout rock avalanches. Can Geotech J 36:1096–1110. https://doi.org/10.1139/t99-067
Deljouei A, Cislaghi A, Abdi E et al (2023) Implications of hornbeam and beech root systems on slope stability: from field and laboratory measurements to modelling methods. Plant Soil 483:547–572. https://doi.org/10.1007/s11104-022-05764-z
Fan CC, Lu JZ, Chen HH (2021) The pullout resistance of plant roots in the field at different soil water conditions and root geometries. CATENA 207:105593. https://doi.org/10.1016/j.catena.2021.105593
Farooq T, Wu W, Tigabu M et al (2019) Growth, biomass production and root development of Chinese fir in relation to initial planting density. Forests 10:236. https://doi.org/10.3390/f10030236
Francis JR, Wuddivira MN, Farrick KK (2022) Exotic tropical pine forest impacts on rainfall interception: canopy, understory, and litter. J Hydrol 609:127765. https://doi.org/10.1016/j.jhydrol.2022.127765
Fredlund DG, Rahardjo H (1993) Soil mechanics for unsaturated soils. John Wiley & Sons
Fuchu D, Lee CF, Sijing W (1999) Analysis of rainstorm-induced slide-debris flows on natural terrain of Lantau Island, Hong Kong. Eng Geol 51:279–290. https://doi.org/10.1016/S0013-7952(98)00047-7
Gao L, Wang X, Johnson BA et al (2020) Remote sensing algorithms for estimation of fractional vegetation cover using pure vegetation index values: a review. Isprs J Photogramm Remote Sens 159:364–377. https://doi.org/10.1016/j.isprsjprs.2019.11.018
García-Ruiz JM, Beguería S, Arnáez J et al (2017) Deforestation induces shallow landsliding in the montane and subalpine belts of the Urbión Mountains, Iberian Range, Northern Spain. Geomorphology 296:31–44. https://doi.org/10.1016/j.geomorph.2017.08.016
Ghestem M, Cao K, Ma W et al (2014) A framework for identifying plant species to be used as ‘ecological engineers’ for fixing soil on unstable slopes. PLoS ONE 9:e95876. https://doi.org/10.1371/journal.pone.0095876
Giadrossich F, Cohen D, Schwarz M et al (2019) Large roots dominate the contribution of trees to slope stability. Earth Surf Process Landforms 44:1602–1609. https://doi.org/10.1002/esp.4597
Gomi T, Sidle RC, Noguchi S et al (2006) Sediment and wood accumulations in humid tropical headwater streams: effects of logging and riparian buffers. For Ecol Manage 224:166–175. https://doi.org/10.1016/j.foreco.2005.12.016
Gonzalez-Ollauri A, Mickovski SB (2017) Hydrological effect of vegetation against rainfall-induced landslides. J Hydrol 549:374–387. https://doi.org/10.1016/j.jhydrol.2017.04.014
Goren L, Aharonov E (2007) Long runout landslides: the role of frictional heating and hydraulic diffusivity. Geophys Res Lett. https://doi.org/10.1029/2006GL028895
Guthrie RH, Hockin A, Colquhoun L et al (2010) An examination of controls on debris flow mobility: evidence from coastal British Columbia. Geomorphology 114:601–613. https://doi.org/10.1016/j.geomorph.2009.09.021
Heim A (1932) Bergsturz und menschenleben. Verlag nicht ermittelbar
Hemmati S, Gatmiri B, Cui YJ, Vincent M (2012) Thermo-hydro-mechanical modelling of soil settlements induced by soil-vegetation-atmosphere interactions. Eng Geol 139–140:1–16. https://doi.org/10.1016/j.enggeo.2012.04.003
Horn R, Smucker A (2005) Structure formation and its consequences for gas and water transport in unsaturated arable and forest soils. Soil and Tillage Research 82:5–14. https://doi.org/10.1016/j.still.2005.01.002
Hsü KJ (1975) Catastrophic debris streams (sturzstroms) generated by rockfalls. Geol Soc Am Bull 86:129. https://doi.org/10.1130/0016-7606(1975)86%3c129:cdssgb%3e2.0.co;2
Hu X, Li XY, Li ZC et al (2020) Linking 3-D soil macropores and root architecture to near saturated hydraulic conductivity of typical meadow soil types in the Qinghai Lake Watershed, northeastern Qinghai-Tibet Plateau. CATENA 185:104287. https://doi.org/10.1016/j.catena.2019.104287
Huat BBK, Ali FHJ, Low TH (2006) Water infiltration characteristics of unsaturated soil slope and its effect on suction and stability. Geotech Geol Eng 24:1293–1306. https://doi.org/10.1007/s10706-005-1881-8
Iverson RM, George DL (2016) Modelling landslide liquefaction, mobility bifurcation and the dynamics of the 2014 Oso disaster. Géotechnique 66:175–187. https://doi.org/10.1680/jgeot.15.lm.004
Johnson AC, Swanston DN, McGee KE (2000) Landslide initiation, runout, and deposition within clearcuts and old-growth forests of Alaska. J Am Water Resources Assoc 36:17–30. https://doi.org/10.1111/j.1752-1688.2000.tb04245.x
Koltermann CE, Gorelick SM (1995) Fractional packing model for hydraulic conductivity derived from sediment mixtures. Water Resour Res 31:3283–3297. https://doi.org/10.1029/95wr02020
Koyanagi K, Gomi T, Sidle RC (2020) Characteristics of landslides in forests and grasslands triggered by the 2016 Kumamoto earthquake. Earth Surf Process Landforms 45:893–904. https://doi.org/10.1002/esp.4781
Kozeny J (1927) Ueber kapillare leitung des wassers im boden. Sitzungsberichte der Akademie der Wissenschaften in Wien 136:271
Legros F (2002) The mobility of long-runout landslides. Eng Geol 63:301–331. https://doi.org/10.1016/S0013-7952(01)00090-4
Leung AK, Garg A, Coo JL et al (2015) Effects of the roots of Cynodon dactylon and Schefflera heptaphylla on water infiltration rate and soil hydraulic conductivity: effects of plant roots on infiltration characteristics and suction. Hydrol Process 29:3342–3354. https://doi.org/10.1002/hyp.10452
Li M, Ma C, Du C et al (2021) Landslide response to vegetation by example of July 25–26, 2013, extreme rainstorm, Tianshui, Gansu Province, China. Bull Eng Geol Environ 80:751–764. https://doi.org/10.1007/s10064-020-02000-9
Liu C, Wang Y, Ma C et al (2018) Quantifying the effect of non-spatial and spatial forest stand structure on rainfall partitioning in mountain forests, Southern China. For Chron 94:162–172. https://doi.org/10.5558/tfc2018-025
Lu J, Zhang Q, Werner A et al (2020) Root-induced changes of soil hydraulic properties – a review. J Hydrol 589:125203. https://doi.org/10.1016/j.jhydrol.2020.125203
Mehtab A, Jiang YJ, Su LJ et al (2020) Scaling the roots mechanical reinforcement in plantation of Cunninghamia R. Br in Southwest China Forests 12:33. https://doi.org/10.3390/f12010033
Milledge DG, Bellugi D, McKean JA et al (2014) A multidimensional stability model for predicting shallow landslide size and shape across landscapes. JGR Earth Surface 119:2481–2504. https://doi.org/10.1002/2014JF003135
Myneni RB, Hall FG, Sellers PJ, Marshak AL (1995) The interpretation of spectral vegetation indexes. IEEE Trans Geosci Remote Sensing 33:481–486. https://doi.org/10.1109/36.377948
Netto ALC, Sato AM, de Souza AA et al (2013) January 2011: the extreme landslide disaster in Brazil. In: Margottini C, Canuti P, Sassa K (eds) Landslide science and practice, vol 6. Risk Assessment. Management and Mitigation. Springer, Berlin, Heidelberg, pp 377–384
Ng CWW, Guo H, Ni J et al (2022) Long-term field performance of non-vegetated and vegetated three-layer landfill cover systems using construction waste without geomembrane. Géotechnique. https://doi.org/10.1680/jgeot.21.00238
Ng CWW, Ni JJ, Leung AK, Wang ZJ (2016) A new and simple water retention model for root-permeated soils. Géotechnique Letters 6:106–111. https://doi.org/10.1680/jgele.15.00187
Ng CWW, Zhang Q, Ni J, Li Z (2021) A new three-dimensional theoretical model for analysing the stability of vegetated slopes with different root architectures and planting patterns. Comput Geotech 130:103912. https://doi.org/10.1016/j.compgeo.2020.103912
Ni J, Leung A, Ng CWW, Shao W (2017) Modelling hydro-mechanical reinforcements of plants to slope stability. Comput Geotech 95:99–109. https://doi.org/10.1016/j.compgeo.2017.09.001
Park DW, Nikhil NV, Lee SR (2013) Landslide and debris flow susceptibility zonation using TRIGRS for the 2011 Seoul landslide event. Nat Hazards Earth Syst Sci 13:2833–2849. https://doi.org/10.5194/nhess-13-2833-2013
Phillips C, Hales T, Smith H, Basher L (2021) Shallow landslides and vegetation at the catchment scale: a perspective. Ecol Eng 173:106436. https://doi.org/10.1016/j.ecoleng.2021.106436
Pollen N (2007) Temporal and spatial variability in root reinforcement of streambanks: accounting for soil shear strength and moisture. CATENA 69:197–205. https://doi.org/10.1016/j.catena.2006.05.004
Qin M, Cui P, Jiang Y et al (2022) Occurrence of shallow landslides triggered by increased hydraulic conductivity due to tree roots. Landslides 19:2593–2604. https://doi.org/10.1007/s10346-022-01921-8
Reed B, Brown J, VanderZee D et al (1994) Measuring phenological variability from satellite imagery. Journal of Vegetation Science - J VEG SCI 5:703–714. https://doi.org/10.2307/3235884
Reid ME, Coe JA, Brien DL (2016) Forecasting inundation from debris flows that grow volumetrically during travel, with application to the Oregon Coast Range, USA. Geomorphology 273:396–411. https://doi.org/10.1016/j.geomorph.2016.07.039
Roback K, Clark MK, West AJ et al (2018) The size, distribution, and mobility of landslides caused by the 2015 Mw7.8 Gorkha earthquake. Nepal Geomorphology 301:121–138. https://doi.org/10.1016/j.geomorph.2017.01.030
Running SW (1990) Estimating terrestrial primary productivity by combining remote sensing and ecosystem simulation. In: Hobbs RJ, Mooney HA (eds) Remote sensing of biosphere functioning. Springer, New York, New York, NY, pp 65–86
Schmidt KM, Roering JJ, Stock JD et al (2001) The variability of root cohesion as an influence on shallow landslide susceptibility in the Oregon Coast Range. Can Geotech J 38:995–1024. https://doi.org/10.1139/t01-031
Scholl P, Leitner D, Kammerer G et al (2014) Root induced changes of effective 1D hydraulic properties in a soil column. Plant Soil 381:193–213. https://doi.org/10.1007/s11104-014-2121-x
Schwarz M, Cohen D, Or D (2012) Spatial characterization of root reinforcement at stand scale: theory and case study. Geomorphology 171–172:190–200. https://doi.org/10.1016/j.geomorph.2012.05.020
Schwarz M, Lehmann P, Or D (2010a) Quantifying lateral root reinforcement in steep slopes – from a bundle of roots to tree stands. Earth Surf Proc Land 35:354–367. https://doi.org/10.1002/esp.1927
Schwarz M, Preti F, Giadrossich F et al (2010b) Quantifying the role of vegetation in slope stability: a case study in Tuscany (Italy). Ecol Eng 36:285–291. https://doi.org/10.1016/j.ecoleng.2009.06.014
Schwarz M, Rist A, Cohen D et al (2015) Root reinforcement of soils under compression. J Geophys Res Earth Surf 120:2103–2120. https://doi.org/10.1002/2015JF003632
Sidle RC, Ziegler AD (2017) The canopy interception–landslide initiation conundrum: insight from a tropical secondary forest in northern Thailand. Hydrol Earth Syst Sci 21:651–667. https://doi.org/10.5194/hess-21-651-2017
Strom A, Li L, Lan H (2019) Rock avalanche mobility: optimal characterization and the effects of confinement. Landslides 16:1437–1452. https://doi.org/10.1007/s10346-019-01181-z
Su L, Hu B, Xie Q et al (2020) Experimental and theoretical study of mechanical properties of root-soil interface for slope protection. J Mt Sci 17:2784–2795. https://doi.org/10.1007/s11629-020-6077-4
Wu L, Cheng P, Zhou J, Li S (2022) Analytical solution of rainfall infiltration for vegetated slope in unsaturated soils considering hydro-mechanical effects. CATENA 217:106472. https://doi.org/10.1016/j.catena.2022.106472
Wu TH, McKinnell WP III, Swanston DN (1979) Strength of tree roots and landslides on Prince of Wales Island, Alaska. Can Geotech J 16:19–33. https://doi.org/10.1139/t79-003
Wuest SB (2001) Soil biopore estimation: effects of tillage, nitrogen, and photographic resolution. Soil and Tillage Research 62:111–116. https://doi.org/10.1016/S0167-1987(01)00218-5
Yang H, Yang T, Zhang S et al (2020) Rainfall-induced landslides and debris flows in Mengdong Town, Yunnan Province, China. Landslides 17:931–941. https://doi.org/10.1007/s10346-019-01336-y
Zeng Q, Zhang L, Davies T et al (2019) Morphology and inner structure of Luanshibao rock avalanche in Litang, China and its implications for long-runout mechanisms. Eng Geol 260:105216. https://doi.org/10.1016/j.enggeo.2019.105216
Zhao B, Su L, Wang Y et al (2021) Insights into the mobility characteristics of seismic earthflows related to the Palu and Eastern Iburi earthquakes. Geomorphology 391:107886. https://doi.org/10.1016/j.geomorph.2021.107886
Zhou W, Qiu H, Wang L et al (2022) Combining rainfall-induced shallow landslides and subsequent debris flows for hazard chain prediction. CATENA 213:106199. https://doi.org/10.1016/j.catena.2022.106199
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This study has been financially supported by the National Natural Science Foundation (U22A20603), the National Natural Science Foundation (41790432), the Sichuan Science and Technology Program (Grant-No. 2021YFS0322), and the Youth Innovation Promotion Association CAS (Grant No. 2019364).
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Bingli, H., Lijun, S., Chonglei, Z. et al. Mobility characteristics of rainfall-triggered shallow landslides in a forest area in Mengdong, China. Landslides (2024). https://doi.org/10.1007/s10346-024-02267-z
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DOI: https://doi.org/10.1007/s10346-024-02267-z