Please use this identifier to cite or link to this item: http://hdl.handle.net/11455/33474
DC FieldValueLanguage
dc.contributor.advisor林信輝zh_TW
dc.contributor.advisorShin-Hwei Linen_US
dc.contributor.authorWang, Kei-Lien_US
dc.contributor.author王凱立zh_TW
dc.date2005zh_TW
dc.date.accessioned2014-06-06T07:46:06Z-
dc.date.available2014-06-06T07:46:06Z-
dc.identifier.urihttp://hdl.handle.net/11455/33474-
dc.description.abstract本文於台灣中部之後龍溪、筏子溪、大里溪以及加走寮溪等四處進行低海拔河川濱水帶之植群調查,並探討其植生分佈之水平與垂直結構特性。另就河川區域內植物之水流阻力,蒐集彙整相關經驗模式及應用參數,並於大里溪樣區選取優勢柔韌性植物,進行水流阻力評估參數之推估,俾供河川設計與管理之參考。 選用之濱水帶植物以呈均勻帶狀分佈之柔韌性草本植物為主,以落板試驗與株高法進行其水流阻力特性參數(MEI)之推估,得到15種植物於不同植株高度下之MEI值,並從中發現兩種推估方法所得之MEI值有很大的差異,此說明植株平均高度無法顯示植株分佈密度與植莖材料剛度之變化。文中進一步假設每種濱水帶草類皆有其特定之分佈密度,且變化不大可視為均一,提出大黍(天竺草)、狗牙根(百慕達草)、甜根子草與鋪地黍等四種植物之株高法初步修正模式,俾供以植株高度評估植生水流阻力之參考依據。zh_TW
dc.description.abstractvegetation survey was made on the riparian zone of the low altitude rivers in central Taiwan, and their vegetation structure which including vertical and horizontal structure was also analyzed. In the meanwhile, this paper reviewed previous studies on the hydraulic behavior of vegetation in flow and the empirical models and parameters that governing the flow resistance of vegetation. Furthermore, 15 grasses those were grown in pure vegetation stand and in different stem length were chosen to estimate and compare their flow resistance coefficient-MEI(flexural rigidity per square meter) by board drop test and stem height method. The results show that there were always large discrepancies between the data of board drop test and stem height method. It is for the reason that average length of stems cannot represent essentially the stem density and flexural rigidity. Furthermore, in the assumption that each grass on riparian zone has the particular density, the calibrated models of four species grasses: Panicum maximum, Cynodon dactylon, Saccharum spontaneum, and Panicum repens were presented for evaluating the vegetation stiffness by average length of stems. That provides the guidance in channel design and river management.en_US
dc.description.tableofcontents壹、前言 1 貳、文獻蒐集與理論基礎 2 一、河川濱水帶適生植物 4 (一)水流對濱水植物之影響 4 (二)濱水帶適生植物之相關研究 4 (三)植生調查方法 5 二、河川濱水帶植生之水力特性 8 (一)植生水流阻力之推估 10 (二)柔韌性植物之水流阻力 14 (三)非柔韌性植物之水流阻力 22 (四)植生水流阻力之評估參數 25 參、材料與方法 27 一、河川濱水帶適生植物調查 27 (一)植生調查樣區設置 28 (二)調查樣區簡介 29 (三)濱水帶適生植物調查與植生名錄建立 36 (四)植群結構探討並繪製河川斷面植生圖 37 二、河川濱水帶優勢柔韌性植物之MEI之調查 38 肆、結果與討論 40 一、濱水帶適生植群結構 40 二、河川濱水帶優勢柔韌性植物之MEI調查 54 伍、結論與建議 62 陸、參考文獻 64 附錄一、植生調查名錄 69 附錄二、河川斷面植生圖 88zh_TW
dc.language.isoen_USzh_TW
dc.publisher水土保持學系zh_TW
dc.subjectflow resistanceen_US
dc.subject河川區域zh_TW
dc.subjectvegetation associationen_US
dc.subjectriparianen_US
dc.subject水流阻力zh_TW
dc.subject植生群落zh_TW
dc.subject濱水帶zh_TW
dc.titleStudy on the Vegetation Analysis and Flow Resistance of Riparian Zoneen_US
dc.title河川濱水帶適生植物及其水流阻力之研究zh_TW
dc.typeThesis and Dissertationzh_TW
item.cerifentitytypePublications-
item.grantfulltextnone-
item.languageiso639-1en_US-
item.fulltextno fulltext-
item.openairecristypehttp://purl.org/coar/resource_type/c_18cf-
item.openairetypeThesis and Dissertation-
Appears in Collections:水土保持學系
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