Influences of the Wenchuan Earthquake on Sediment Supply of Debris Flows
The 5.12 Wenchuan Earthquake and the subsequent rainstorms induced a large number of landslides, which later were transformed into debris flows. To evaluate the effect of the earthquake on the sediment supply of debris flows, eight debris flow basins near Beichuan City, Sichuan Province, China were...
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| Veröffentlicht in: | Journal of mountain science 2011-04, Vol.8 (2), p.270-277 |
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| description | The 5.12 Wenchuan Earthquake and the subsequent rainstorms induced a large number of landslides, which later were transformed into debris flows. To evaluate the effect of the earthquake on the sediment supply of debris flows, eight debris flow basins near Beichuan City, Sichuan Province, China were chosen as the study area. The area variations of the debris flow source after the Wenchuan Earthquake and the subsequent rainstorm are analyzed and discussed in this paper. Interpretations of aerial photographs （after the 5.12 Wenchuan Earthquake） and SPOT5 images （after the rainstorm event of September 24, 2008） as well as field investigations were compared to identify the transformation of landslide surface in the study area, indicating that the landslide area in the eight debris flow basins significantly increased. The loose sediment area on the channel bed increased after the rainstorm event. In order to estimate the relationship of the landslide area with the rainfall intensity in different return periods, a model proposed by Uchihugi was adopted. Results show that new landslide area induced by heavy rainfall with 50-year and 100-year return period will be 0.87 km2 and 1.67 km2, respectively. The study results show the Wenchuan earthquake had particular influences on subsequent rainfall-induced debris flow occurrence. |
| doi_str_mv | 10.1007/s11629-011-2114-7 |
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To evaluate the effect of the earthquake on the sediment supply of debris flows, eight debris flow basins near Beichuan City, Sichuan Province, China were chosen as the study area. The area variations of the debris flow source after the Wenchuan Earthquake and the subsequent rainstorm are analyzed and discussed in this paper. Interpretations of aerial photographs （after the 5.12 Wenchuan Earthquake） and SPOT5 images （after the rainstorm event of September 24, 2008） as well as field investigations were compared to identify the transformation of landslide surface in the study area, indicating that the landslide area in the eight debris flow basins significantly increased. The loose sediment area on the channel bed increased after the rainstorm event. In order to estimate the relationship of the landslide area with the rainfall intensity in different return periods, a model proposed by Uchihugi was adopted. Results show that new landslide area induced by heavy rainfall with 50-year and 100-year return period will be 0.87 km2 and 1.67 km2, respectively. The study results show the Wenchuan earthquake had particular influences on subsequent rainfall-induced debris flow occurrence.</description><identifier>ISSN: 1672-6316</identifier><identifier>EISSN: 1993-0321</identifier><identifier>EISSN: 1008-2786</identifier><identifier>DOI: 10.1007/s11629-011-2114-7</identifier><language>eng</language><publisher>Heidelberg: SP Science Press</publisher><subject>Aerial photography ; Debris flow ; Detritus ; Earth and Environmental Science ; Earth Sciences ; Earthquakes ; Ecology ; Environment ; Field tests ; Flow velocity ; Geography ; Landslides ; Landslides & mudslides ; Rain ; Rainfall intensity ; Rainstorms ; Remote sensing ; Sediments ; Seismic activity ; 地震影响 ; 流域面积 ; 滑坡泥石流 ; 研究区域 ; 降雨强度</subject><ispartof>Journal of mountain science, 2011-04, Vol.8 (2), p.270-277</ispartof><rights>Science Press, Institute of Mountain Hazards and Environment, CAS and Springer-Verlag Berlin Heidelberg 2011</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c441t-54012e16fcca737737852a87fa79145257b072f411210b5c632e5c833989e09f3</citedby><cites>FETCH-LOGICAL-c441t-54012e16fcca737737852a87fa79145257b072f411210b5c632e5c833989e09f3</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Uhttp://image.cqvip.com/vip1000/qk/87799X/87799X.jpg</thumbnail><linktopdf>$$Uhttps://link.springer.com/content/pdf/10.1007/s11629-011-2114-7$$EPDF$$P50$$Gspringer$$H</linktopdf><linktohtml>$$Uhttps://link.springer.com/10.1007/s11629-011-2114-7$$EHTML$$P50$$Gspringer$$H</linktohtml><link.rule.ids>314,776,780,27901,27902,41464,42533,51294</link.rule.ids></links><search><creatorcontrib>Zhu, Jing</creatorcontrib><creatorcontrib>Ding, Jun</creatorcontrib><creatorcontrib>Liang, Jingtao</creatorcontrib><title>Influences of the Wenchuan Earthquake on Sediment Supply of Debris Flows</title><title>Journal of mountain science</title><addtitle>J. Mt. Sci</addtitle><addtitle>Journal of Mountain Science</addtitle><description>The 5.12 Wenchuan Earthquake and the subsequent rainstorms induced a large number of landslides, which later were transformed into debris flows. To evaluate the effect of the earthquake on the sediment supply of debris flows, eight debris flow basins near Beichuan City, Sichuan Province, China were chosen as the study area. The area variations of the debris flow source after the Wenchuan Earthquake and the subsequent rainstorm are analyzed and discussed in this paper. Interpretations of aerial photographs （after the 5.12 Wenchuan Earthquake） and SPOT5 images （after the rainstorm event of September 24, 2008） as well as field investigations were compared to identify the transformation of landslide surface in the study area, indicating that the landslide area in the eight debris flow basins significantly increased. The loose sediment area on the channel bed increased after the rainstorm event. In order to estimate the relationship of the landslide area with the rainfall intensity in different return periods, a model proposed by Uchihugi was adopted. Results show that new landslide area induced by heavy rainfall with 50-year and 100-year return period will be 0.87 km2 and 1.67 km2, respectively. The study results show the Wenchuan earthquake had particular influences on subsequent rainfall-induced debris flow occurrence.</description><subject>Aerial photography</subject><subject>Debris flow</subject><subject>Detritus</subject><subject>Earth and Environmental Science</subject><subject>Earth Sciences</subject><subject>Earthquakes</subject><subject>Ecology</subject><subject>Environment</subject><subject>Field tests</subject><subject>Flow velocity</subject><subject>Geography</subject><subject>Landslides</subject><subject>Landslides & mudslides</subject><subject>Rain</subject><subject>Rainfall intensity</subject><subject>Rainstorms</subject><subject>Remote sensing</subject><subject>Sediments</subject><subject>Seismic activity</subject><subject>地震影响</subject><subject>流域面积</subject><subject>滑坡泥石流</subject><subject>研究区域</subject><subject>降雨强度</subject><issn>1672-6316</issn><issn>1993-0321</issn><issn>1008-2786</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2011</creationdate><recordtype>article</recordtype><sourceid>BENPR</sourceid><recordid>eNp9kEFLwzAYhosoOKc_wFvx5KWaL2mb5ijTucHAwxSPIYtf1m5d2iUtsn9vRgeCByEhX-B5Hz7eKLoF8gCE8EcPkFOREICEAqQJP4tGIARLCKNwHuac0yRnkF9GV95vCMm5KGAUzebW1D1ajT5uTNyVGH-GX9krG78o15X7Xm0xbmy8xK9qh7aLl33b1ocj_YwrV_l4Wjff_jq6MKr2eHN6x9HH9OV9MksWb6_zydMi0WkKXZKlBChCbrRWnPFwioyqghvFBaQZzfiKcGpSAApklemcUcx0wZgoBBJh2Di6H7yta_Y9-k7uKq-xrpXFpvcSQgWUZAJ4QO_-oJumdzZsJ4tMMBpuGiAYIO0a7x0a2bpqp9whmOSxWjlUK4NXHquVRzEdMj6wdo3uV_xf6LSNLhu73oecXCm9NVWNkvGcE0g5-wG264QR</recordid><startdate>20110401</startdate><enddate>20110401</enddate><creator>Zhu, Jing</creator><creator>Ding, Jun</creator><creator>Liang, Jingtao</creator><general>SP Science Press</general><general>Springer Nature B.V</general><scope>2RA</scope><scope>92L</scope><scope>CQIGP</scope><scope>W94</scope><scope>~WA</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>3V.</scope><scope>7ST</scope><scope>7UA</scope><scope>7XB</scope><scope>88I</scope><scope>8FK</scope><scope>ABUWG</scope><scope>AEUYN</scope><scope>AFKRA</scope><scope>AZQEC</scope><scope>BENPR</scope><scope>BHPHI</scope><scope>BKSAR</scope><scope>C1K</scope><scope>CCPQU</scope><scope>DWQXO</scope><scope>F1W</scope><scope>GNUQQ</scope><scope>H96</scope><scope>HCIFZ</scope><scope>L.G</scope><scope>M2P</scope><scope>PCBAR</scope><scope>PQEST</scope><scope>PQQKQ</scope><scope>PQUKI</scope><scope>Q9U</scope><scope>SOI</scope><scope>7QH</scope></search><sort><creationdate>20110401</creationdate><title>Influences of the Wenchuan Earthquake on Sediment Supply of Debris Flows</title><author>Zhu, Jing ; 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Mt. Sci</stitle><addtitle>Journal of Mountain Science</addtitle><date>2011-04-01</date><risdate>2011</risdate><volume>8</volume><issue>2</issue><spage>270</spage><epage>277</epage><pages>270-277</pages><issn>1672-6316</issn><eissn>1993-0321</eissn><eissn>1008-2786</eissn><abstract>The 5.12 Wenchuan Earthquake and the subsequent rainstorms induced a large number of landslides, which later were transformed into debris flows. To evaluate the effect of the earthquake on the sediment supply of debris flows, eight debris flow basins near Beichuan City, Sichuan Province, China were chosen as the study area. The area variations of the debris flow source after the Wenchuan Earthquake and the subsequent rainstorm are analyzed and discussed in this paper. Interpretations of aerial photographs （after the 5.12 Wenchuan Earthquake） and SPOT5 images （after the rainstorm event of September 24, 2008） as well as field investigations were compared to identify the transformation of landslide surface in the study area, indicating that the landslide area in the eight debris flow basins significantly increased. The loose sediment area on the channel bed increased after the rainstorm event. In order to estimate the relationship of the landslide area with the rainfall intensity in different return periods, a model proposed by Uchihugi was adopted. Results show that new landslide area induced by heavy rainfall with 50-year and 100-year return period will be 0.87 km2 and 1.67 km2, respectively. The study results show the Wenchuan earthquake had particular influences on subsequent rainfall-induced debris flow occurrence.</abstract><cop>Heidelberg</cop><pub>SP Science Press</pub><doi>10.1007/s11629-011-2114-7</doi><tpages>8</tpages></addata></record> |
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| subjects | Aerial photography Debris flow Detritus Earth and Environmental Science Earth Sciences Earthquakes Ecology Environment Field tests Flow velocity Geography Landslides Landslides & mudslides Rain Rainfall intensity Rainstorms Remote sensing Sediments Seismic activity 地震影响 流域面积 滑坡泥石流 研究区域 降雨强度 |
| title | Influences of the Wenchuan Earthquake on Sediment Supply of Debris Flows |
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