| 词条 | Nanhua Dam |
| 释义 |
| name = Nanhua Dam | name_official = 南化水庫 | image = Nanhua.jpg | image_size = 250px | image_caption = | image_alt = | location_map = | location_map_size = | location_map_caption = | coordinates = {{coord|23|05|22|N|120|32|16|E|type:landmark|display=inline,title}} | country = | location = Nanhua, Tainan, Taiwan | status = | construction_began = 1988 | opening = 1994 | demolished = | cost = | owner = | dam_type = Earthfill | dam_height = {{convert|87.5|m|ft|abbr=on}}[1] | dam_height_thalweg = | dam_height_foundation= | dam_length = {{convert|511|m|ft|abbr=on}}[1] | dam_width_crest = | dam_width_base = | dam_volume = | dam_elevation_crest = | dam_crosses = Houku River | spillway_count = | spillway_type = Ungated overflow, bathtub | spillway_capacity = {{convert|4332|m3/s|cuft/s|abbr=on}}[1] | res_name = | res_capacity_total = {{convert|0.158|km3|acre feet|abbr=on}}[1] | res_capacity_active = | res_capacity_inactive= | res_catchment = {{convert|512|km2|mi2|abbr=on}}[1] | res_surface = {{convert|5.37|km2|acre|abbr=on}}[1] | res_elevation = | res_max_depth = | res_max_length = | res_max_width = | res_tidal_range = | plant_operator = Taiwan Water Corporation | plant_commission = | plant_decommission = | plant_type = | plant_turbines = | plant_capacity = | plant_annual_gen = | website = | extra = }}Nanhua Dam ({{zh|c=南化水庫|p=Nánhuà Shuǐkù|poj=Lâm-hoà Chúi-khò͘}}), originally named Houjie Dam ({{zh|t=後堀水庫|labels=no}}), is a dam across the Houku River, a tributary of the Tsengwen River in southern Taiwan. Located at Nanhua District, Tainan, the dam was built to provide municipal water to Tainan and Kaohsiung City and is operated by the Taiwan Water Corporation.[2] Construction work started in December 1988, and impoundment of the reservoir began in July 1993. A conduit to supply water from the reservoir to Kaohsiung was completed in October 1993 and the entire project was operational in March 1994.[3] The curved earthfill dam is {{convert|87.5|m|ft}} high and {{convert|511|m|ft}} long, impounding a reservoir with a capacity of {{convert|0.158|km3|acre feet}} and an active or useful capacity of {{convert|0.1495|km3|acre feet}}.[1] The reservoir naturally receives water from a catchment of {{convert|104|km2|mi2}}, which is not enough to fill it alone. Most of the water is actually diverted through a tunnel from the Qishan River to the east, adding {{convert|408|km2|mi2}} to the drainage area.[1] The tunnel provides an average of 160.6 million m3 (130,200 acre feet) of water to the reservoir each year.[3] Because of its location in a mountainous region, Nanhua is prone to heavy sediment accumulation. A small upstream diversion weir was built to send water laden with silt through a bypass tunnel and allow the remaining clear water to enter the reservoir.[4] However, large amounts of silt are still carried into the reservoir during flooding events. In 2009 alone, flooding caused by Typhoon Morakot dumped 17 million m3 (14,000 acre feet) of silt into the reservoir.[5] In February 2010, the Taiwan Water Corporation began the first stage of a two-year sediment removal project at Nanhua.[6] See also
References1. ^1 2 3 4 5 6 7 {{cite book|title=Reservoirs and Weirs in Taiwan|publisher=Taiwan Water Resources Agency, Ministry of Public Affairs|language=Chinese|page=335}} {{commons category|Nanhua Dam}}2. ^{{cite web|url=http://mirrorsignalmove.blogspot.com/2012/05/nanhua-reservoir.html|title=Nanhua Reservoir (南化水庫)|publisher=煞車轉舵再加速|author=Fagan, Michael|date=2012-05-05|accessdate=2012-07-13}} 3. ^1 {{cite web|url=http://tainfra-model.pcc.gov.tw/files/15-1009-2369,c515-1.php|title=Nanhua Reservoir|publisher=Museum of Major Engineering Project Models|date=|accessdate=2012-07-13}} 4. ^{{cite web|author1=Owens, Phil |author2=Collins, Alison |url=http://www.sednet.org/download/WG4_ws01_Minutes.pdf|title=Planning and Decision Making: Opportunities for River Basin Planning of Sediment Management|publisher=SedNet|work=|date=March 2003|accessdate=2012-07-13}} 5. ^{{cite web |url = http://web1.tainan.gov.tw/NewEnglish/PDA/HotNewsDetail.aspx?SN=22344 |title = Impending Flood Season County Magistrate Su Urges for Acceleration in the Dredging of Dams |publisher = Tainan Public Works Bureau |work = |date = 2010-04-13 |accessdate = 2012-07-13 |deadurl = yes |archiveurl = https://web.archive.org/web/20150322144841/http://web1.tainan.gov.tw/NewEnglish/PDA/HotNewsDetail.aspx?SN=22344 |archivedate = 2015-03-22 |df = }} 6. ^{{cite news|title=Date set for Nan-Hua Reservoir desilting plan|work=The China Post|date=2009-12-29|url=http://www.chinapost.com.tw/taiwan/national/national-news/2009/12/19/237114/Date-set.htm|accessdate=2012-07-13}} 4 : 1994 establishments in Taiwan|Dams completed in 1994|Dams in Tainan|Earth-filled dams |
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