river basin area 中文意思是什麼

river basin area 解釋
流域面積(匯水面積)
  • river : n 1 河,江。 Rriver Thames 或 the R Thames 泰晤士河; the Hudson R 〈美國〉哈得孫河。 the Rriver ...
  • basin : n 1 臉盆;水盆。2 滿盆,(一)盆。3 盆地,流域。4 水坑,地塘;(港灣)深度;內灣,小灣;【造船】...
  • area : n. 1. 面積;平地;地面。2. 空地;〈英國〉地下室前的空地。3. 地區,地方;〈比喻〉區域;范圍。
  1. Secondly, based on the microbeam analytical technique, on the one hand, through investigating the characteristic of major elements in the mantle minerals the author acquired the static information from mantle ; on the other hand, through multi - point analysis of a part of the minerals from mantle, the auther got dynamic information from mantle. finally, generalizating the fruits of this study and predecessors, the autor holds that the constituents of lithospheric mantle possibly includes spinel lherzolites, clinopyroxenites, websterite, dunite, harzburgites, garnet lherzite, phlogopite lherzite, eclogites, clinopyroxene megacrysts ; compared with east china and north china platform, the research field mantle shows the characteristics of higher degree of partial melting processes and more depleted mantle ; the. upper mantle beneath north hetian area is heterogeneous, with a tendency of deficit in a12o3 and lree from kaliyang in west hetian to the river basin of kalakshi river and yulongkashi river ; the subduction of the crust beneath north hetian has ever occurred in geological history and caused the mixing of mantle - crust ; the depth of the origination of basaltic magmas beneath north hetian exceeds 73km ; the thickness of the lithosphere beneath the research area amounts to 204. 9km ; the mantle beneath north hetian has geological condtions for forming diamond deposits

    最後,綜合本區幔源礦物和地幔巖石的特徵以及地球物理資料,得出如下結論:本區上地幔的物質組成有尖晶石二輝橄欖巖、二輝巖、單斜輝石巖、純橄欖巖、方輝橄欖巖、石榴石二輝橄欖巖、金雲母二輝橄欖巖、榴輝巖;與中國東部以及華北地臺上地幔相比,研究區上地幔具有富集主元素中相容元素和虧損其中的不相容元素的特徵,局部熔融程度較高;上地幔存在橫向和縱向的不均一性,從西部的克里陽到喀拉喀什河和玉龍喀什河流域, al和lree富集程度呈下降趨勢,不同來源的相同礦物中主元素的含量差異較大;地質歷史時期這里可能發生過地殼俯沖並產生殼幔混合作用;玄武巖漿的起源深度73km ;從幔源重砂礦物的溫壓估算結果,可以推斷出巖石圈厚度可達204 . 9km ;綜合巖石圈物質組成特徵、巖石圈熱狀態、地幔溫壓狀態、氧逸度以及幔源巖石和幔源礦物的化學成分,認為研究區具備了金剛石成礦地幔地質條件。
  2. The modified zndx in comparison with others is well indicative of the severity and extent of flood / drought event and of more objective classification of them, which is therefore quite applicable to a extended area. ( 3 ) the main anomaly structures of grades of drought / food in summer over northwest china present pluvial pattern and dry pattern in all the areas, and spatial changes are opposite pattern from the noth to the south and the west to the east. the first four rotated loading vector fields represent four principal precipitation anomaly areas : the weishui river basin, east of the qinghai - xizang plateau

    但修訂過的zndx指數根據氣溫、土壤濕度及前期氣候濕潤度等因子能夠客觀的反映出西北地區的旱澇特徵。 ( 3 )西北地區季與年區域旱澇等級表明:西北地區的乾旱雨澇有顯著的階段性和年際變化特徵。 1980 』 s到1990 』 s中期,氣候較濕潤,土壤濕度增墑較明顯; 1990 』 s中期以後是40年乾旱最異常的時段; 1960 』 s旱澇交替發生,旱澇趨勢接近常年; 1970 』 s氣候雖乾旱,但沒有1990 』 s中後期顯著。
  3. Some particular measures to be taken are as the followings : ( 1 ) to establish a uniform harmony mechanism in the river basin in order to have a general plan for wetland protection and utilization ; ( 2 ) to combine the existing protection districts according to lake drainage area and species distribution, and to construct new wetland protection region in order to solve problems in management districts ; ( 3 ) to develop wetland restoration and reconstruction ; ( 4 ) to carry out reforesting in formerly cultivated land and to construct shelter forest of the yangtze river in order to control soil erosion and to preserve the water resource ; ( 5 ) to protect and utilize reasonably the wetland resources in the middle and lower reaches of the yangtze river ; ( 6 ) to strengthen the research of wetland science

    具體可採取以下措施:在流域內建立統一協調機制,對流域濕地進行保護與合理利用,合理布局,統一規劃;按湖泊流域和物種分佈整合現有保護區,建立新的濕地保護區,解決目前管理上的制約問題;大力開展濕地修復重建;推進退耕還林、長江防護林等工程建設,發揮森林治理水土流失、涵養水源的作用;在保護的前提下科學合理地利用長江中下游濕地資源,開拓新的生產力;同時加強濕地科學研究。
  4. And the resuits are as follows : the main hazards in rural area were flood, water - logging, landslide and debris flow, whereas water - logging in cities ; the catastrophe was caused by the natural factors including the heavy rain due to the strong tropical storm, the mountainous terrain conditions in xiangjiang river basin, and the man - made factors including unreasonable project construction, the imperfect disaster warning mechanism, the weak consciousness on disaster prevention and the unperfect disaster risk transfer mechanism etc

    結果表明:農村的主要致災因子是洪水、內澇、滑坡、泥石流,而城市主要為內澇;此次巨災是在強熱帶風暴引發的暴雨、湘江流域中上游多山的地形條件等自然因素,和工程建設不合理、災害預警機制不夠完善、人們防災意識薄弱以及災害風險轉移機制不夠成熟等人為因素的共同作用下導致的。
  5. Test on vegetative rehabilitation and soil and water conservation of red earths erosion area in lijiang river basin

    灕江流域紅壤侵蝕區植被恢復及水土保持試驗
  6. The model is mainly for assessing the effects of climate change on hydrology and water resources. the huaihe river basin with the area of 270, 000 km2 is selected as the research area

    所建模型主要供評價氣候變化對水文水資源影響之用,同時也為陸氣耦合所要求的水文模式作初步探討。
  7. 3. it was rocky hills and relatively high in the yangtze river mouth area along changzhou, wuxi, changshu, kunshan and qingpu, which belonged to changzhou - kunshan zone according to holocene delimitation from the final stage of the liangzhu culture to the stage of the maqiao culture, due to the expansion of taihu basin and large water areas, maqioa cultural sites were concentrated on rocky hills and cheniersin the east of taihu to the west of shanghai

    3 、蘇南常州、無錫、常熟、崑山和青浦一帶曾經是長江河口地區的基巖山地,在全新統地層分區上屬于常州一崑山區,是古地面地勢相對較高的地方。良渚文化末期至馬橋文化期,為太湖湖盆體系擴大時期,水域較大,所以馬橋文化遺址集中於太湖東部與上海西部地勢較高的基巖山地和砂堤之上。
  8. Everglades mainly, situate in plain lake area on the middle and downstream reaches in changjiang river basin

    要全面規劃,統籌兼顧,做好中游平原湖區防汛抗旱、防澇排漬工作,保護濕地,防止土壤潛育化與沼澤化。
  9. The impacts of river basin area on orchard landscape structure in shandong peninsula

    山東半島流域面積對果園分佈格局的影響
  10. Preliminary discussion on flood storage and dentention area classification in the yangtze river basin

    長江流域蓄滯洪區分類的初步探討
  11. Intelligent decision on optimization of storage - detention flood area alternatives in songhua river basin

    松花江流域蓄滯洪區方案優選智能決策研究
  12. Based on the natural conditions, land use and production situation and implementation of the valley harnessing measures in the anjiagou river basin, dingxi county, gansu province, in this study the land use types, spatial distribution mode of land use structure, costs of farming, forestry and animal husbandry and their economic returns are analyzed, the qualitative and quantitative maximum economic returns of agriculture and animal husbandry are lucubrated, and an optimized design of land use structure is carried out by using the linear programming method and developing a mathematic model under the restriction of land area, labor forces, livestock forces, social requirements and forage supply

    摘要根據甘肅定西安家溝流域自然條件、土地利用狀況、治理措施和生產狀況,通過對土地利用的類型、結構空間分佈模式以及人財物資源的輸入和輸出分析,以種植業和畜牧業總體最大純經濟效益最高為目標,從定性到定量,通過建立數學模型,在土地面積、勞動力、畜力、社會需求和飼料需求的約束之下,應用線性規劃方法進行土地利用結構優化設計,求解最優目標解,得出優化方案。
  13. The major advisory services completed in recent 3 years are as follows ( 1 ) " study on comprehensive benefits of the three gorge project " ( main participator ), which was the key project ofthe seventh five - year plan of the state and won the first - grade prize for outstanding achievemetn in scence and technolog awarded by the state science and technology committee ; ( 2 ) " cause analysis and countermeasure study about investment over - estimation of water project ; ( 3 ) " research on modermization of water conservancy " ( 4 ) " investigation of water price system of yellow river basin / ; ( 2 ) - ( 4 ) are the key projects of the ministr of water resources p. r. c. person in charge ( 5 ) " assets evaluation and compensation investment calculation for 41 inundated enterprises in the theree gorge reservoir area " ( 6 ) ' proitive analysis of regional economic developetn and port construction of jiansu province " ; ( 7 ) " surpervision for resettlement adn rehabilitation of dahe reservoir in guangdong province " ( person in charge ) and so on

    近三年業主要從事的重大咨詢業務有: 1 .作為主要參加者承擔完成國家『七五』重點攻關項目「三峽工程綜合效益研究」 ,獲國家科委科技進步獎一等獎;主持完成水利部重點項目: 2 . 「水利水電工程投資超概算成因分析及對策研究」 、 3 . 「現代化水利研究」和4 . 「黃河流域水價制度研究」 ;作為技術及外業負責人先後完成了: 5 . 「三峽庫區受淹企業資產評估及補償投資計算」 、 6 . 「江蘇省區域經濟發展與港口開發的實證分析」與7 . 「廣東省大河水庫移民遷移安置監理」等咨詢業務。
  14. After the 60 ’ s, the effect inclines to steady that farming production changes to the area of the lake. river basin temperature and rainfall changes fluctuate to the surface of the lake, and the effect coming into being sensitively displays out

    60年代以後,人類的農業活動對湖面變化的影響趨向穩定,流域溫度、降水變化對湖面波動所產生的效應敏感地體現出來。
  15. The control area of the wei river basin is rather large with diverse climate feature ; the suitable hydrological forecasting models for feng - jia - shan and hei - he reservoirs are studied and applied in practice

    針對渭河流域面積大,氣候差異大的特點,分析研究了馮家山、黑河水庫適用的水文預報模型,並進行了預報研究。
  16. Analysis of water and sediment materials from main hydro - stations in the upper reaches of the yellow river in qinghai province showed that, the area in the upper reaches of the yellow river was only 23. 4 % of the total yellow river basin, while its runoff was 47. 5 %, and sediment yield was only 3. 86 % of that of the whole basin, so it was a major area of water production and supply

    利用青海境內黃河上游主要水文測站的資料,對境內水沙來源及組成進行了分析,認為該區面積只佔黃河流域面積的23 . 4 ,而徑流量佔47 . 5 ,輸沙量只佔3 . 86 ,是黃河的主要產流區和水量供給地之一。
  17. The article analyzes the important problems existing in the well completion technologies for drinking - water suppling in salt - water area on the lower shiyanghe river basin, which reduces sand content of well water and avoids mixing the upper salt water and the lower fresh water

    摘要文章分析了石羊河下游鹹水區人飲水成井中存在降低井水含砂量,避免上部鹹水與下部淡水相串兩個關鍵性技術問題。
  18. The main characteristics of land use / land cover change in xilin river basin over the past two decades were significant decrease in area of meadow grassland, temperate grassland vs. significant increase in area of cropland, desert grassland, urban area and desertilized land

    錫林河流域20年來土地利用/土地覆蓋變化的主要特徵為草甸草原、典型草原面積的大幅減少和荒漠草原、農田和沙漠化土地面積的大幅增加及城鎮的擴張。
  19. The foreground of shipping delivery is very flourishing. the river basin with shipping worthiness in our country is 619 million square kilometers, accounting for 64 percent of land area. the development of our river shipping has huge latent capacity

    實行船板交割方式具有廣闊的發展前景:我國具有航運價值水系的江河流域面積達619萬平方公里,占國土陸地面積的64 ,發展我國內河航運具有巨大潛力。
  20. Methodological study on the estimate of regional surface fluxes over yhe huaihe river basin area with satellite remote sensing

    衛星遙感估算淮河流域區域能量通量的方法研究
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