Stream Morphology Engineering Lab Classification of Taiwan River

Stream Morphology & Engineering Lab. Classification of Taiwan River Morphology Level 1 Basin Geology Property Drainage Pattern Level 2 Main River Bed Material Distribution Main River Pattern Level 3 Bed Profile Sediment Transport Hydraulic Distribution Artificial Control Point Level 4 Habitats Bed Material Composition Flow Condition Artificial Construction Level 5 Unit Sediment Water Properties Force Geology Water NCHUSWC Basin Geometric Line Topography Property Reach Channel Shape Vegetation Distribution Local Bed Form Human Activity Vegetation Association Point Bed Form Unit Human Vegetation Spatial and Time Scale Plane Topography 2

Stream Morphology & Engineering Lab. Classification of Taiwan River Morphology Level 1 Basin Geology Property Drainage Pattern Level 2 Main River Bed Material Distribution Main River Pattern Level 3 Bed Profile Sediment Transport Hydraulic Distribution NCHUSWC 河 相 A Artificial Control Point 由流域、主流及河道之 縱橫剖面特性，組成一 個河段特有之河相特性 3

Stream Morphology & Engineering Lab. Classification of Taiwan River Morphology Level 1 Basin Geology Property Drainage Pattern Level 2 Main River Bed Material Distribution Main River Pattern Level 3 Bed Profile Sediment Transport Hydraulic Distribution Artificial Control Point Level 4 Habitats Bed Material Composition Flow Condition Artificial Construction Vegetation Distribution Level 5 Unit Sediment Water Properties Human Activity Vegetation Association 河段之河相特性影響棲 地中之物理組成結構， 形成該河相下之特有棲 地特性。 NCHUSWC 河 相 棲 地 4

Stream Morphology & Engineering Lab. Classification of Taiwan River Morphology NCHUSWC Level 1 – Basin Property 水 流 侵 蝕 原 始 地 質 地 形 Basin Initial Condition 流 域 現 貌 地 震 斷 層 Force Basin Explicit Property Basin Geometric Property Basin Evolution Origin Earthquake, Flood with Hundred Years Return Period, Weathering Drainage Pattern Geology Property 5

Stream Morphology & Engineering Lab. Classification of Taiwan River Morphology NCHUSWC Level 2 – Main River Property Main River Boundary Condition Force Mountain, Hill Tableland Plain, Estuary Sediment, Hydraulic Condition Erosion Base Level Bed Boundary Main River Explicit Property Topography Property Geology, Topography Flood with Several Decades Return Period Main River Pattern Meandering Braided, Straight Bed Material Distribution Coarse, Fine Bed Material 8

Stream Morphology & Engineering Lab. Classification of Taiwan River Morphology NCHUSWC Engineering Properties in Level 2 12

Stream Morphology & Engineering Lab. Classification of Taiwan River Morphology NCHUSWC Engineering Properties in Level 2 13

Stream Morphology & Engineering Lab. Classification of Taiwan River Morphology Level 3 - River Bed Profile Property NCHUSWC U, V Type Valley, Valley Terraces, Compound Topography Force: Flood with Several Years Return Period, Human And Single Channels Activities Force Reach Explicit Property Erosion Base Level Force Vertical Aggradation, Degradation Channel Aggradation Or Degradation, Local Erosion Bed Boundary Reach Explicit Property Reach Boundary Condition Sediment, Hydraulic Condition Reach Explicit Property Force Lateral Condense or Widen Bank Erosion Convex Bend Deposition Concave Bend Erosion 16

Stream Morphology & Engineering Lab. Classification of Taiwan River Morphology NCHUSWC Level 4 – Stream Physical Habitas Property Local Boundary Condition Sediment, Hydraulic Condition Artificial Construction Force Local Explicit Property Nature Condition, Aqueous Habitats Continuity Annual Discharge Human Activities Aqueous Habitats Stream Physical Habitats Waterfront Habitats Diversity, Habitats longitudinal Continuity 29

Stream Morphology & Engineering Lab. Classification of Taiwan River Morphology NCHUSWC Level 5 – Stream Physical Habitats Property Explicit Condition Property Boundary Seasonal Discharge Daily Discharge Sediment Bed Form Unit Water Properties Human Activity Seasonal Discharge Daily Discharge Vegetation Association Boundary condition Explicit Property 30

Stream Morphology & Engineering Lab. Classification of Taiwan River Morphology Level 1 Basin Geology Property Drainage Pattern Level 2 Main River Bed Material Distribution Main River Pattern Level 3 Bed Profile Sediment Transport Hydraulic Distribution Artificial Control Point Level 4 Habitats Bed Material Composition Flow Condition Artificial Construction NCHUSWC 河 相 Vegetation Distribution 棲 地 Level 5 Unit Sediment Water Properties Human Activity Vegetation Association 本研究建構各河相之河川特性及其分析模式，並架構棲地物理組成之特性，而 為建立將河相對棲地環境之影響及關連性，則需訂定棲地物理組成之定量評估 指標，以做為河相及棲地間之定量連結。 32

Stream Morphology & Engineering Lab. Index of Physical Habitats NCHUSWC 34

Stream Morphology & Engineering Lab. Index of Physical Habitats NCHUSWC 35