1)the Backwater Reach回水區
1.Eutrophication Investigation on the Backwater Reach of the Branch River of the Three Gorges Reservoir;重慶三峽庫區支流河口回水區富營養化研究
2.The contents of different nitrogen forms and phosphorus forms in surface sediments and the soils of water-level-fluctuating zone of the backwater reach from input river of Three Gorges Reservoir were measured,and their distribution character were studied,Major conclusions were described as follows:1.主要研究了三峽入庫河流大寧河回水區沉積物及消落區土壤氮磷營養鹽的賦存形態及其分布特征,并對消落帶土壤進行氮磷釋放動力學特征研究,以掌握三峽水庫秋季蓄水運行(156m)條件下大寧河流域回水區沉積物分布特征,以期為分析水庫運行對大寧河沉積物變化的影響、探討水體中營養負荷的遷移變化規律提供基礎數據,結果表明:1。
英文短句/例句
1.Bed Load Agradation in Reservoir and Depostion in Variable Backwater Region水庫推移質淤積、變動回水區淤積及回水抬高
2.Eutrophication Investigation on the Backwater Reach of the Branch River of the Three Gorges Reservoir;重慶三峽庫區支流河口回水區富營養化研究
3.Dynamics of TN and TP in the Backwater Region of the Linjiang River in the Three Gorge Reservoir三峽庫區臨江河回水區總氮和總磷的動態特征
4.Analysis for the reasonable dock and port form in fluctuating backwater area of the Three Gorges Reservoir三峽庫區變動回水區港口碼頭合理型式分析
5.The Advance in Physical Modelling of Sedimentation in the Fluctuating Backwater Region of Three Gorges Reservoir三峽水庫變動回水區泥沙問題物理摸擬的進展
6.Distribution of sediment diameter of bed load at the fluctuating backwater reach of Liujiaxia Reservoir劉家峽水庫變動回水區河床質泥沙粒徑分布
7.The Sediment accumulation Situation of the Variety Back-water Zone In Shanxia Dam;三峽水庫變動回水區泥沙淤積狀況及治理
8.Fluvial process and waterway regulation in fluctuating backwater area of the Three Gorges三峽水庫變動回水區河床演變及航道整治
9.Changes of sediment deposition and erosion at Chongqing reach in backwater area of Three Gorges Project after reservoir adjusting of the upstream in the Yangtze River水沙調節后三峽工程變動回水區泥沙沖淤變化
10.Seasonal Variation of Trophic States in Backwater Areas of Tributaries in Three Gorges Reservoir三峽水庫支流回水區營養狀態季節變化
11.Characteristics of soil seed banks in backwater area of Three Gorges Reservoir water-level-fluctuating zone at initial stage of river-flooding三峽庫區消落帶回水區水淹初期土壤種子庫特征
12.Study on Sewage Reclamation and Reuse and Regional Sewage Resourcelization污水再生回用與區域污水資源化研究
13.Last Study on Chemical Plant Sewage Reusing as Makeup Water of Circulation化工廠區雨排水回用循環水補水及時研究
14.Gray water reuse among the public institutions and residential communities will be promoted.推行居住小區和單位中水回用。
15.The use of gray water in residential areas and institutions will be encouraged.開展居住小區和單位中水回用；
16.Analysis on the Selection of Re-Injection of Salt Making Waste Water Into Rock Brine Well Mining Area制鹽廢水回注巖鹽鹵井采區選擇分析
17.Treatment and Reuse of Fresh Section Wastewater in Big Commercial Center大型商業中心生鮮區廢水處理及回用
18.Experimental study on sediment deposition in circulation zone of shallow water flows明渠淺水回流區泥沙淤積的試驗研究
相關短句/例句
backwater area回水區
1.Characteristics of soil seed banks in backwater area of Three Gorges Reservoir water-level-fluctuating zone at initial stage of river-flooding三峽庫區消落帶回水區水淹初期土壤種子庫特征
3)backwater reach回水區
1.The contents of different phosphorus forms in surface sediments and the soils of water-level-fluctuating zone of the backwater reach from input river of Three Gorges Reservoir were measured,using the standard measurement and test(SMT) procedure of phosphorus forms in freshwater sediments.應用淡水沉積物中磷形態的標準測試程序(SMT)對三峽入庫河流大寧河回水區表層沉積物、消落帶土壤不同形態P進行了分級測定,分析了各形態磷之間以及各形態磷與樣品理化性質如有機質、主要氧化物組成之間的相關性。
4)backwater region回水區
1.Application of the neural network in prediction for chlorophyll-a in branch backwater region神經網絡在次級河流回水區葉綠素a濃度預測中的應用
5)large backwater zone大回水區
1.This paper studies the causes of its extinction of Meta population from the perspective of biology,analyses the problems of present protective measures and gives the suggestion to set up a natural protected area network in large backwater zones of middle and lower reaches of the Changjiang River.本文試從生物學的角度,探討其Meta種群滅絕的原因和現有保護措施存在的問題,并提出了在長江中、下游大回水區建立自然保護區網的設想。
6)the area of fluctuant backwater回水變動區
1.Study of the model of water quality for the period of time of backwater in the area of fluctuant backwater of Three Gorges Reservoir anabranch-embouchure;三峽庫區次級河流河口回水變動區回水時段水質模型
延伸閱讀
水庫變動回水區水庫變動回水區region of reservoir shu一ku匕一。門do}191飛L{lshLJ}日一水庫變動回水區(fluetuating baCkwaterregion of reservoir)水庫最高水位[u1水末端和最低水位回水末端之間的河段。水庫變動回水區具有水庫和河道的雙重特性。在水庫蓄水期中.變動回水區受塑水影響，水流流速降低，泥沙迅速落淤。當水庫水位消落時，變動回水區自上而下逐漸脫離雍水影響，恢復天然河道狀態，水流流速提高、蓄水期落淤的泥沙將被水流沖刷起動，搬運至下游深水區內。因此.在水庫變動回水區內，水位變化頻繁，泥沙沖淤交替.其變化幅度均遠大于天然河流。 變動回水區的泥沙沖淤數量和沖淤過程主要取決于水庫的運行方式。由于河流的絕大部分泥沙來rl汛期，如果水庫在汛期蓄水運用，大t泥沙將淤積在變動回水區內，汛期水庫水位越高，淤積的泥沙量就越大。當枯水期水庫因供水而水位下降時，變動回水區內會發生強烈的沖刷現象。對于沙質河床，在寬淺的過渡段，河道中將產生強烈的沙波運動，導致航道遷徙不定和水深變化無常。對于卵石河床在淺灘部位.枯水期的小流t可能難以沖走汛期搬運來的大量卵石，從而使水深不足和礙航.因此，當在航運發達的河流上修建水庫時，為了減少水庫消落期間的沖刷沙量，需要適當地降低汛期水庫水位和抬高枯水期水位。 水庫變動回水區大致可分為上段和下段兩部分.變動回水區上段，水庫塞水影晌的持續時間較短，水位立高值也較小，因此建庫后除泥沙淤積t將較天然情況有所增多外，河流的形式不至產生重大的變化。變動回水區的下段，由于塑水作用增大，建庫后往往會產生河型的變化。通常，河流平面形態的變化趨勢是分岔河道向單一河道發展，彎曲河道向徽彎河道發展.在橫向的形態方面，由于水位變幅增加.河道向高灘深槽發展，斷面較天然情況下窄深。這些變化都有利于改善航運的條件。河型的轉化會導致河流的主格易位，當新的航摘中存在礁石等礙航因家時，需要進行一定的整治。
