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河床滲渠式集水廊道

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__NOTOC__ <small{{Language-title />box|english_link= Riverbed infiltration galleries | french_link= Coming soon | spanish_link= Coming soon | hindi_link= Coming soon | malayalam_link= Coming soon | tamil_link= Coming soon | swahili_link=coming soon | korean_link= Coming soon | chinese_link=河床滲渠式集水廊道 | indonesian_link= Coming soon | japanese_link= Coming soon }}

[[Image:riverbed infiltration galleries icon.png|right|80px]]

[[Image:OmoRiver.jpg|thumb|right|200px|非洲衣索比亞的奧莫河。 <br>照片來源： [http://www.flickr.com/photos/neslab/6826784275/ Davide Comelli.]]]

[[Image:InfiltrationGalleryDiagram.jpg|thumb|right|200px|集水滲渠。 <br> 圖片： © Ken Chatterton. 出處： Hussey, S.W. (2007) Water from sand rivers: guidelines for abstraction. WEDC, Loughborough University, UK.]]

[[Image:InfiltrationGalleryBuild.jpg|thumb|right|200px|Building an infiltration gallery. Infiltration Area: 1080 ft2 (100建造一個集水滲渠。滲透面積：1080平方英呎（100.3 m2). Cost - 平方公尺）。花費－$9.33/foot2. Overseas supplier (AUS).平方英呎。海外供應（澳洲）。]]

====水位有多深？====

因以下樹木的主根皆需生長於水面之下，知道主根深度即可得知水位深度。依據經驗，一棵樹的主根深度大約是其樹長之四分之三。將樹投射在地上的影子與一根一百公分的棍子的影子做比較，即可測量出樹高。這兩種測量方法皆需在清晨陽光下或傍晚影子最長時進行。例：如果棍子的影子為八十公分長，比例則為：80/100＝0.8。如果樹影為12公尺長，樹高即為：12公尺 x 5/4＝15公尺高，主根及水位高度為：15公尺 x 3/4＝11.25公尺深。

[[File:WaterTableDepthChart.jpg|thumb|none|500px|Vegetation that tells you how deep the water is beneath it. Click on chart to zoom in.由植被得知底下水的深度。點擊圖表放大。]]

====其他考量====

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