衛星影像判釋與現地探查天然林集水區新生崩塌地分布之比較：以2015年蘇迪勒颱風誘發崩塌為例

Landslide Distributions Identified by Satellite Images and Field Investigations in a Natural Forested Catchment: The Case of Landslides Induced by Typhoon Soudelor in 2015

10.29417/JCSWC.201803_49(1).0001

林松駿(Song-Jin Lin)；梁偉立(Wei-Li Liang)

現地探查 ； 崩塌型態 ； 天然林集水區 ； 衛星影像分析 ； Field investigation ； landslide type ； natural forested catchment ； satellite image analysis

中華水土保持學報

49卷1期（2018 / 03 / 01）

1 - 11

繁體中文

蘇迪勒颱風帶來的短延時強降雨為2015年影響臺灣最大的颱風事件，然而蘇迪勒颱風對人為干擾少之天然林區域所造成的影響還少有研究調查，本研究調查蘇迪勒颱風後對於福山試驗林粗坑溪集水區內的新生崩塌地的分布，並比較衛星影像圈繪以及現地探查所得結果之異同。根據衛星影像分析，新生崩塌地總計62處，除了河道變動外，崩塌面積隨著坡度上升而擴大。三條現地探查路線之崩塌型態不一致，其中水管步道之崩塌規模雖然小，但卻包含裂縫、山壁崩塌、沖蝕溝擴大、兩者以上的複合型態。粗坑溪沿岸處崩塌事件中有56%可以在上坡之水管步道中找到位置相對應的裂縫或崩塌，可能為上下坡面塊體連續移動，這些區域未來再次擴大、移動、滑動的可能性高；然而若單以衛星影像難以得知此徵兆，凸顯結合現地探查之必要性及優點。

Typhoon Soudelor brought high-intensity, short-duration rainfall and was the largest typhoon event to strike Taiwan in 2015. However, the effects of the typhoon on natural forested areas have been little reported. This study investigated the spatial distribution of new landslides in the Tsukeng catchment in Fushan Experimental Forest and compared their effects through satellite images and field investigations. Based on satellite image analysis, 62 new landslides were induced by the typhoon. The surface area of the landslides increased with slope gradient, except for areas of stream-bed fluctuation. The characteristics and types of landslides were different along three field investigation lines. The Shuiguan trail showed smaller landslides but included four types, namely cracks, collapses, gully expansions, and compounding. For 56% of the landslides occurring at downslope locations along the Tsukeng stream, cracks or collapses were also found at corresponding locations in the upslope direction along the Shuiguan trail. It suggests the consecutiveness of mass movements between the upslope and downslope, as well as impending movements at these locations in the near future. Since these effects are barely detectable from satellite images alone, it is necessary to use them in combination with field investigations to collect the greatest amount of information possible.

1. Baatz, M.,Schäpe, A.(2000).Multiresolution segmentation – an optimization approach for high quality multi-scale image segmentation.Angewandte Geographische Informations-Verarbeitung XII,Karlsruhe:
2. Liang, W.L.,Chan, M.C.(2017).Spatial and temporal variations in the effects of soil depth and topographic wetness index of bedrock topography on subsurface saturation generation in a steep natural forested headwater catchment.Journal of Hydrology,546,405-418.
3. Liang, W.L.,Hung, F.X.,Chan, M.C.,Lu, T.H.(2014).Spatial structure of surface soil water content in a natural forested headwater catchment with a subtropical monsoon climate.Journal of Hydrology,516,210-221.
4. Lin, T.C.,Hamburg, S.P.,Lin, K.C.,Wang, L.J.,Chang, C.T.,Hsia, Y.J.,Vadeboncoeur, M.A.,Mabry McMullen, C.M.,Liu, C.P.(2011).Typhoon disturbance and forest dynamics: lessons from a northwest pacific subtropical forest.Ecosystems,14(1),127-143.
5. Niethammer, U.,Rothmund, S.,James, M.R.,Travelletti, J.,Joswig, M.(2010).UAV-based remote sensing of landslides.International Archives of Photogrammetry, Remote Sensing and Spatial Information Sciences, Vol. XXXVIII, Part 5 Commission V Symposium,Newcastle upon Tyne, UK:
6. Rouse, J.W.,Haas, R.H.,Schell, J.A.,Deering, D.W.(1974).Monitoring vegetation systems in the Great Plains with ERTS.Third ERTS-1 Symposium, NASA SP-351,Washington D.C.:
7. Varnes, D.J.(1978).Slope movement types and processes.Landslides: Analysis and Control,Washington D.C.:
8. 林光清, K.C.,洪富文, F.W.,程煒兒, W.E.,蔣先覺, H.C.,張雲翔, U.C.(1996)。福山試驗林土壤調查與分類。臺灣林業科學，11，159-174。
9. 林美聆, M.L.,陳彥澄, Y.C.(2014)。應用光達地形資料於莫拉克災後陳有蘭溪流域崩塌與土石流地質敏感地區判釋與分析。航測及遙測學刊，18(2)，129-144。
10. 施錦揮, C.H.,游政恭, C.K.,鄒慶敏, C.M.,蔡季欣, J.S.,林志清, J.C.,林燕山, Y.S.(2010)。無人飛行載具應用於防救災圖資供應之研究－以北二高崩塌地為例。地籍測量，29(3)，17-36。
11. 康若蘭, R.L.,林登秋, T.C.,詹進發, J.F.,黃正良, J.L.(2005)。2000 年碧利斯颱風干擾前後福山試驗林 NDVI 變動之研究。台灣林業科學，20(1)，73-87。
12. 張志新, C.S.,王俞婷, Y.T.,傅鏸漩, H.S.,林又青, Y.C.,張駿暉, J.H.,劉哲欣, C.S.,呂喬茵, C.Y.,吳啟瑞, C.R.,蘇元風, Y.F.(2015)。張志新、王俞婷、傅鏸漩、林又青、張駿暉、劉哲欣、呂喬茵、吳啟瑞、蘇元風 (2015)，「2015 年蘇迪勒颱風災害調查彙整報告」，國家災害防救科技中心。(Chang, C.S., Wang, Y.T., Fu, H.S., Lin, Y.C., Chang, J.H., Liu, C.S., Lu, C.Y., Wu, C.R., and Su, Y.F. (2015). “The aggregate report of the disaster caused by typhoon SOUDELOR in 2015.” National science and technology center for disaster reduction. (in Chinese))。
13. 張庭瑜, T.Y.,王湘閔, S.M.,林昭遠, C.Y.(2015)。陳有蘭溪集水區災後山坡地土地可利用限度查定快速評估之研究。中華水土保持學報，46(3)，158-170。
14. 梁偉立, W.L.,李勝倫, S.L.(2016)。2015 年蘇迪勒颱風強降雨事件中源頭集水區土壤水分之時空變化。2016 森林集水區經營研討會論文集
15. 莊雲翰, Y.H.(2002)。國立中央大學土木工程學系=Department of civil engineering College of engineering, National Central University。
16. 楊樹榮, S.R.,林忠志, C.C.,鄭錦桐, C.T.,潘國樑, G.L.,蔡如君, R.J.,李正利, C.L.(2011)。臺灣常用山崩分類系統。第十四屆大地工程研討會
17. 詹孟浚, M.C.,梁偉立, W.L.(2014)。以坡地土壤厚度及垂直結構探討淺層崩塌潛勢區位。中華水土保持學報，45(2)，85-94。
18. 詹勳全, H.C.,張嘉琪, C.C.,陳樹群, S.C.,魏郁軒, Y.S.,王昭堡, Z.B.,李桃生, T.S.(2015)。台灣山區淺層崩塌地特性調查與分析。中華水土保持學報，46(1)，19-28。
19. 鄭雅文, Y.W.,史天元, T.Y.,蕭國鑫, K.T.(2008)。物件導向分類於高解析度影像自動判釋。航測及遙測學刊，13(4)，273-284。
20. 蕭國鑫, K.H.,尹承遠, C.Y.,劉進金, J.K.,遊明芳, M.F.,王晉倫, C.L.(2003)。SPOT影像與航照資料應用於崩塌地辨識之探討。航測及遙測學刊，8(4)，29-42。
21. 魏倫瑋, L.W.,黃韋凱, W.K.,黃春銘, C.M.,李璟芳, C.F.,林聖琪, S.C.,紀宗吉, C.C.(2015)。蘇迪勒颱風於臺灣北部之山崩致災機制初探。中華水土保持學報，46(4)，223-232。

1. 詹婉妤,陳振宇,陳均維,莊承穎,林詠喬(2023)。臺灣近年（2006－2020）降雨誘發之土砂災害變遷趨勢分析。中華水土保持學報，54(2)，108-118。