旱季流量 的英文怎麼說
中文拼音 [hànjìliúliáng]
旱季流量
英文
dry weather flow- 旱 : Ⅰ名1. (沒有降水或降水太少) dry spell; drought 2. (非水田的; 陸地上的) dryland 3. (陸地交通) on land Ⅱ形容詞(乾旱) dry; arid
- 流 : Ⅰ動1 (液體移動; 流動) flow 2 (移動不定) drift; move; wander 3 (流傳; 傳播) spread 4 (向壞...
- 量 : 量動1. (度量) measure 2. (估量) estimate; size up
- 流量 : rate of flow; flow; runoff; discharge; throughput; (flow) rate; quantity (of flow); flux
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Abstract : this paper analyzes causal factors of flood in the middle reaches of changjiang river. due to neglection of environmental management, soil erosion in the upper and middle reaches of the changjiag river, lake sedimentation, large - scale reclamation of marshes, the flood regulation capacity of the lake was descended, and flood stage was risen and prolonged. consequently more and more river levees and lake dikes were reinforced almost every year to prevent the disasters, which made flood level go up and flood period last for more days. the frequency of flood and waterlogging disasters rose and their damage was enlarged. several proposals for flood prevention including agricultural modernization are put forward
文摘: 1998年長江大洪水后開始實施的「平垸行洪,退田還湖」的土地利用調整方案,從長遠來說應尋求農業安全且收入逐漸提高條件下的土地利用,長江中游地區應積極推進農業現代化,提高農業勞動生產率,轉移,減少分蓄洪區的人口,移民建鎮,對區內的土地要促進其規模經營,由優秀的有文化的農民經營,平時只有少量的直接從事農業生產的經營管理人員,農忙時則大量地使用季節性合同工或實現機械化,大洪水時退田還湖,減輕長江幹流大洪水的壓力,減少分洪與特大洪災時的損失,這樣還可促進避洪、冬季農業等的發展,也有利於長江中上游地區陡坡耕地的退耕還林,還可在糧食充足時進行休耕,在旱災、糧食緊張時擴大糧食生產?Climatological characteristics, which can provide some drought or flood years with large - scale background, are investigated for large - scale water vapor transport over asian - australian monsoon region based on vertically integrated water vapor flux by pentad from 1980 to 1997. at the same time, the differences of moisture transport over the yangtze river basin between drought and flood and the moisture budgets over eastern china from april to september are examined. major results are as follows : i
使用1980 ? 1997年垂直積分的整層水汽輸送通量資料,從氣候平均的角度分析了亞澳季風區大尺度水汽輸送演變和偏南風水汽輸送在東亞地區推進的氣候特徵,為研究異常年份旱澇事件的產生提供了相應的大尺度背景;同時還討論了長江流域旱澇年水汽輸送的差異以及4 - 9月我國東部各區域的水分收支情況。Based on the analysis mentioned above, a conceptual diagram explaining the physical process is put forward : stronger ( weaker ) convective activities in tropical areas stronger upward ( downward ) vertical anomaly stream in tropical areas more ( less ) moisture transports from " key regions " to shandong stronger ( weaker ) hadley and walker circulation stronger ( weaker ) east asian summer monsoon eap ( negative eap ) in 500hpa upward ( downward ) vertical anomaly stream rise in shandong subtropical high abnormally located northward ( southward ) more ( less ) rain in shandong province
弱季風年與山東夏旱年則相反。通過分析山東夏季降水與東亞夏季風以及大氣環流異常的物理過程,得出了如下物理概念模型:熱帶印度洋以及南海-熱帶西太平洋地區對流加強(減弱)吟熱帶地區垂直上升(下沉)氣流增強崢熱帶印度洋和南海一西太平洋地區水汽輸送通量增加。Construction and operation of a sewage pumping station with an average dry weather flow of about 12, 100m3 per day
建造及營辦一個平均旱季流量約為每天12 , 100立方米的污水泵水站。One way to help minimise pollution even before all expedient connections have been eliminated and a comprehensive sewerage system put in place is to build dry weather flow interceptors below pollution sources
要清除所有非法接駁的排污渠和擴展公共污水收集系統至全港各地需要一定的時間,目前為盡量減低河溪污染,政府在污染源下游建設了旱季截流設備。( 4 ) the correlations are significant between the sth position index and the general circulation. in the westerly ( easterly ) year, equatorial westerly is weaker ( stronger ), cross - equatorial flow is weaker ( stronger ), south china sea summer monsoon is weaker ( stronger ), the yangtze river valley westerly is stronger ( weaker ), which has the positive ( negative ) effect on the maintenance of rain band over the yangtze river valley, so the rainfall is more ( less ) in this area and it is hit by floods ( droughts ), vice versa
( 4 )本文運用定義的副高指數研究了六月份副高偏東偏西年份的大型環流特徵及其對我國東部天氣的影響,風矢量場和相關場分析結果表明:副高偏西(東)年,赤道西風減弱(增強) ,越赤道氣流偏弱(增強) ,南海夏季風偏弱(強) ,而長江流域西風增強(減弱) ,有(不)利於雨帶在江淮流域維持,該地區降水偏多(少)易澇(旱) 。Runoff amount in rainy season for different land - use types constituted more than 50 % of annual amount, while the proportion in drought season was less than 17 %. of annual total soil loss amount, the control accounted for 60 % and complex proportions for other lands. however, soil loss amounts in drought season for all lands were lowest in one year
雨季徑流量均佔全年的50以上,而旱季徑流量佔全年的17以下;而不同土地利用方式的土壤流失量佔全年流失量的比例則較為復雜,對照土壤流失量佔全年的60 ,而其它土地利用方式由於植被覆蓋、耕作和管理措施的季節性可能發生3 6月的土壤流失量小於7 10月的流失量,但旱季土壤流失量所佔比例均最小。Normally water resources is affected by human activities and climatic change, but it is affected mainly by climatic change in runoff forming regions located in the high and middle mountainous area in the northwestern china. river runoff in the hexi inland arid region all originates from the qilian mt. area and the change of mountainous runoff resulted from global weather warming up and will bring an important effect to the development of society and economy in the hexi region. so the response on mountainous runoff and its changing trends are analyzed on the basis of the measured data of precipitation, air temperature, and discharges observed from some weather and hydrologic stations in the studied area. the results show that seasonal variation of mountainous runoff in the hexi inland region is mainly affected by the river ' s geographical location and supply source, and the yearly change by precipitation and that in the west of the region by air temperature besides precipitation. there are some obviously regional differences in the influences of climatic change on surface runoff in the hexi inland arid region, that is, rivers runoff in the west of the hexi area have been increasing and rivers in the east part have been decreasing, and the rivers runoff in the central part presented slowly increase trend, such as the heihe river, but it is not quite obvious
一般情況下,水資源的變化主要受氣候變化和人類活動的影響,但在位於我國西北內陸乾旱地區的中高山地帶,徑流的形成主要受前者的影響.甘肅省的河西內陸乾旱區是該省重要的工農業生產和經濟開發區,這里各項社會和經濟活動與出山徑流的變化都有著十分密切的關系.因此,筆者根據有關水文氣象臺站的降水、氣溫和徑流觀測資料,分析了以黑河、昌馬河、西營河等主要河流為代表的河西內陸區出山徑流的變化特徵與規律.結果表明,河西內陸區出山口徑流的季節變化主要受地理位置和河流補給來源的影響,而年際變幅則受山區降水量年際變化及變幅的影響十分明顯.目前,梨園河以西河流水量處于上升階段,梨園河以東的河流則處于下降的階段;以黑河幹流鶯落峽水文站年徑流為代表的走廊中部地區的出山口徑流正處於1990年開始的枯水段的上升段.但總體而言,河西內陸乾旱區出山口徑流的變化相對比較穩定.預計今後若干年內,河西內陸乾旱區東段河流出山口徑流的變化以偏枯為主,中段、西段河流出山口徑流的變化以平水或平水偏豐為主Abroad research concentrates primarily in the aspect of river ecosystem. while domestic research mostly concentrates in drought, half drought or drought with seasonal change areas where the supply of water resource is hardly meets the demands and the environment is comparative weak. the research of ecological water requirement in south china is few
國外研究主要集中在河流生態流量方面;國內研究目標多集中在水資源供需矛盾突出以及生態環境相對脆弱和問題嚴重的乾旱、半乾旱和季節性乾旱的半濕潤區,而對南方地區的生態需水研究則更加欠缺。分享友人