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標題: 林地崩塌風險與地層含水量分佈之研究
A Study on Landslides and Water Content Distribution of Strata in Forestland
作者: 馮正一
關鍵字: 林業類;應用研究;forestland;林地;地電阻;崩塌地;風險;含水量;resistively;landslide;water content

This project proposes a three year term research topic of “A study on landslidesand water content distribution of strata in forestland”. Beside the discussion of therelationship between water content distribution of strata with geology, topography,vegetation facies, the influences of the factors on landslides in forestland are studied.A genetic algorithm will be used to analyze the stability of forestland, and landsliderisk analysis model will be developed.The subtopics of the research are “Investigation of the landslides and watercontent distribution of strata in forestland”for the first year, “Relationships betweenlandslides and water content distribution of strata in forestland.”for the second year,and “Landslide risk analysis model development for forestland”for the third year.The three subtopics are sequential topics and are interrelated.The first year term, “Investigation of the landslides and water contentdistribution of strata in forestland”, is to discuss the relationships between vegetationfacies, geology, topography, and water content in strata. Also, field measurements willbe performed to establish the fundamental data for continuing research of the secondand third year terms. Proper landslide test sites will be selected for research. Satelliteimages are used to establish the spectrum data. Field investigations include electricalresistively testing for water content of strata, 3D laser scanning for topography, andsurface wave spectra analysis for measuring shear wave velocity to estimate strengthof strata.The second year term, “Relationships between landslides and water contentdistribution of strata in forestland”, will continue the field measurements. Thevegetation facies data and the field measurement results of the first year term will beused to analyze the relationship among distribution of water content in strata and thefactors using bi-variable and multi-variable method. The relationship of water contentin strata and landslide in forestland will be discussed. The genetic algorithm will beapplied to calculate the stability of the forestland.The three year term, “Landslide risk analysis model development for forestland”is to evaluate the variation of the factors, including water content in strata, geology,topography, and rainfall, for estimation of landslide probability and for developmentof landslide risk analysis model. The third year term will still continue to performfield measurements for verification of the landslide risk model developed. Theresearch results will be integrated to GIS system for presentation, inquiring andfurther research.This research can better understand the relationships among the water content instrata, geology, topography, vegetation facies, etc., and their influences on landslide offorestland. The research results can be provided for estimation distribution of watercontent in the landslide area and landslide risk of forestland. In addition, it can be asubstantial aid to forest landslide prevention.
其他識別: NSC97-2313-B005-042-MY3
Appears in Collections:水土保持學系

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