water loss 中文意思是什麼

water loss 解釋
漏水
  • water : n 1 水;雨水;露;〈常作 pl 〉 礦泉,溫泉;藥水。2 〈常 pl 〉水體;水域;水道;海;湖;河;海域;...
  • loss : n. 1. 喪失;丟失,遺失。2. 減損,損失,虧損(額);損耗;減少,下降。3. 失敗;輸掉。4. 錯過;浪費。5. 損毀;【軍事】傷亡;〈pl. 〉 傷亡及被俘人數。
  1. More meaningful comparisons can be made by comparing water loss from the potometer with that from an atmometer ( an apparatus used to measure the rate of evaporation from a porous pot or other nonliving wet surface ), which allows uncontrolled evaporation

    更有意義的是,可以比較蒸騰計的失水與蒸發計(通過有孔小罐或者潮濕表面來測量蒸發速率的儀器)的失水間的區別。
  2. Under cold stress condition, cold hardiness of 12 vitis species including 45 lines ( cultivars ) was identified based on the leakage of electrolytes, water loss ratio and percentage of bud bursting on the stem and estimated the hardiness resistance of 12 v. species by the average of subordinate function ( sf )

    摘要在冷凍脅迫條件下,測定了葡萄屬12個種45個株系枝條的膜透性變化、含水量動態變化及萌芽能力3項指標,並以種內不同株系間3項指標的平均值綜合評價了12個種的抗寒性。
  3. Control soil and water loss and building ecologic changting

    治理水土流失建設生態長汀
  4. The characteristic and preventing measures system of soil and water loss in the shan - ling express highway in henan province

    河南三靈高速公路水土流失特點及防治措施體系
  5. This is normally closely related to the rate of water loss by transpiration, and the potometer can be used to compare transpiration rates under different conditions

    通常與由於蒸騰作用而喪失水分的速率緊密相關,蒸騰計可被用於在不同條件下進行蒸騰速率的比較。
  6. Application of etm spot 5 syncretized satellite image to soil and water loss survey of mining area

    5融合衛星影像在礦區水土流失調查中的應用
  7. We have extended our research on rocky desertification, provided solid theoretical and technical basis for the control of rocky descrtification and established successful rehabilitation model with chinese characteristics such as integrated control of small drainage area, returning cultivated land to forestry and grass, production of both animal and grass, changing slope to terrance in order to prevent water loss and soil erosion, aiding the poor byway of environmental immigration and development and improving representative fragility ecology, etc

    貴州對喀斯特石漠化生態環境進行了長期、持久的研究,為石漠化治理提供了堅實的理論基礎和有力的技術支撐,形成了具有中國特色的成功治理模式:包括小流域綜合治理模式,生態農業模式,退耕還林還草、林草結合的草、畜(禽)生產模式,草地畜教業模式,坡耕地防治水土流失的坡改梯模式,環境移民與開發式扶貧模式,典型脆弱生態環境綜合治理模式等。
  8. During the day water loss by transpiration exceeds water absorption by the roots, and leaf water potential decline.

    白天蒸騰作用散失的水分超過根系吸收的水分,因而葉子的水勢就下降。
  9. Mathematic model and digital simulation of small river basin soil and water loss

    小流域水土流失的數學模型及數值模擬
  10. In combination with the rapid development of highway construction and the present severe situation of tilled land and land resource, effects on economy, society and resource produced by highway construction are approached from three different angels : the improvement to the economy and society development, the peculiarities and the severity of occupation of land resource and the bad effects on land use caused by soil and water loss, thus arousing the people to pay high attention to the occupation of land resource in highway construction. a method of cost - benefit analysis is approached to evaluate the economic rationality of occupation of land in highway construction and the social benefits produced by highway construction are analyzed qualitatively ; at last, these methods are tested and verified through a concrete engineering in yangling agricultural hi - tech demonstrational zone and effective technological and systematic measures are put forward in order to settle the problem onto a compatibly developmental path

    本研究從公路建設迅速發展的實際和土地、耕地資源面臨的嚴峻形勢著手,在實地調研的基礎上,結合相關的文獻和資料,從公路建設對經濟、社會發展的促進作用,公路建設佔用土地資源的特點,公路建設造成的水土流失對土地資源利用的危害等三個方面系統地分析總結了公路建設活動對經濟、社會與資源的影響,以引起社會各界對公路建設與土地資源佔用問題的重視;用成本-效益分析法對公路建設佔用土地資源的經濟合理性進行評價,並對公路建設佔地的社會效益進行分析,通過楊凌農業高新技術產業示範區三路一橋工程驗證它們的實用性。
  11. In the area of watershed between the yangtze river and the huaihe river, there are a series of ecological environmental issues, such as fragile forest ecosystem, frequent drought damage, lake of water resources, serious soil and water loss and contamination by chemical fertilizer, pesticide and plastic membrane

    摘要分析了江淮分水嶺地區存在的森林生態系統脆弱,易旱多災,水資源短缺,土壤貧瘠,礦山開采過度,水土流水嚴重,化肥、農藥、農膜等農業化學品污染嚴重,農村生態環境退化等生態環境問題。
  12. The research results mainly show : ( 1 ) the ecological degradation characteristics of wuxi county include : some soil is thin and barren and its water and fertility conservation abilities are poor, gradual degradation of soil results in decrease of vegetation diversity and the vegetation community structure gradually inclines tc simplicity from complexity. the types of soil and water loss in wuxi county mainly involve surface erosion and gully erosion. according to investigation, surface erosion area occupies 80 % or so or erosion area, in which the slope farmlands surface erosion area accounts for about 70 % of farmland erosion area

    研究結果主要包括: ( 1 )巫溪縣生態退化特徵表現:作為生物生長基質的部分土壤薄而貧瘠,保水保肥能力差,部分地區基巖裸露,土壤的不斷退化導致植物種多樣性減少,植物種群結構逐步由復雜趨向簡單化;縣內水土流失的類型主要包括面蝕和溝蝕兩大類,據調查,面蝕面積占侵蝕總面積的80左右,其中坡耕地面蝕佔耕地侵蝕面積的70左右。
  13. Soil and water loss has deteriorated ecological environment, worsen the impoverished economy and ; poverty resulted in over extorting from the nature and worsen the soil and water loss again

    水土流失惡化生態環境,加劇了經濟貧困;而貧困導致人們向大自然過度索取,又加速了水土流失。
  14. Furthermore, on the basis of consultancies, inquiries and evaluations from multiple sources, the model for predicting soil and water loss in dandong - zhuanghe highway construction is developed. moreover, considering the characteristics of the highway, the covering area of the project is divided into three parts such as main body area, soil - fetching area and soil - spoiling area. for these three preventive areas, the perfect precaution measures for preventing and curing the soil and water loss during the road construction in which a number of vegetal cover measures are taken

    論文中詳細調查並介紹了項目情況及沿線自然、社會經濟狀況;收集研究了公路建設項目水土流失預測的基本內容和方法,在多方查詢、請教專家及分析研究的基礎上,提出了丹莊高速公路水土流失預測模型,針對項目不同區域進行了水土流失預測和分析,為水土保持措施的設計提供了定量依據;論文根據高速公路項目的特點,將丹東至莊河高速公路項目區分成了主體工程、取土場、棄土場三個水土流失防治區,並在初步設計文件的基礎上,針對三個水土流失防治區進行了較為完善的水土保持防治措施設計;論文在丹東至莊河高速公路水土保持方案設計中大量採用了植被防護措施,為了更有力地指導植被措施的施工,論文中還就植被保持水土的有效性進行了研究探討。
  15. Water loss calculation and check for liujiaxia hydropower plant

    劉家峽水電廠空耗水量的計算及考核
  16. The fresh soil and water loss caused in the road construction often appears at the roadbed, rock slope and the place for the discarded soils and gravel, which will do harm to the rivers, reservoirs and the crop fields and pollute the surrounding environment

    道路建設產生的新的水土流失主要發生在挖方、填方路基、邊坡、棄土(石)場以及施工過程中的亂挖、亂堆、亂倒,它主要危害建設區內的河流、水庫、農田和村莊,污染周圍環境。
  17. De - farming and restoring forest are principal policies presently for the improving of eco - environment and the reducing of soil and water loss in the loess plateau

    摘要退耕還林還草是目前黃土高原整治生態環境和控制水土流失的主體政策。
  18. The results show that ( 1 ) the system of contour dams, contours and fallow had positive impact on water and soil losses than grass stripes and contour ditch. at the same time it was showed that contour dams, contours, fallow significantly reduced soil erosion and water loss, grass stripe and contour ditch had recorded reduction in water and soil losses although to a much less extent than above 3 farming systems. most of sediment was bed load in all the systems except in contour dams and contour fanning

    研究的主要結論如下: 1 、運用坡面徑流小區法系統地研究了當地農業生產活動中不同農作措施下紅壤坡耕地水土流失特徵、土壤養分流失規律及形態特徵,結果表明: ( 1 )同順坡農作措施相比:其它農作措施均具有明顯減輕水土流失的作用,等高土埂,等高農作、休閑處理控制水土流失的效果優於水平草帶和水平溝處理。
  19. Terraces on slope land delete the conditions of causing soil and water loss. ponds, cistens, water cellars enhance surface water use efficiency, warping dams can store flood, decrease flood peak, retain sediment, and conserve water

    坡地修梯田消除了產生水土流失的條件,蓄水池、旱井、水窯提高了對地表水資源的利用率,淤地壩具有蓄洪水、削洪峰、攔泥沙、涵養水源的作用。
  20. Investigation of soil and water loss in hunan and jiangxi provinces shows that there are still evident soil and water loss under forest even through the forest cover rate is as high as 51. 4 % and 53 % respectively

    對湖南、江西兩省水土流失概況的調查結果表明,盡管森林覆被率高達51 . 4 %和53 % ,林地中的水土流失仍十分明顯。
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