沙土流失 的英文怎麼說

中文拼音 [shātǔliúshī]
沙土流失 英文
sand running-down
  • 沙 : 沙動詞[方言] （搖動以清除雜物） shake
  • 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...
  • 沙土 : sandy soil
  • 流失 : run off; be washed away; flow away; wastage
  1. Soil is the base of agriculture production, the key measure to prevent water and soil loss is to conserve soil, but most soil nutrient is lost with the sediment loss, and serious water and soil loss make the soil thickness degrease, the soil nutrient be deficient and lean, the land quality degrade and the yield of plant decrease, all this results is going to threaten the people ' s transplanting and the agriculture sustainable development, and restrict the economy development of three gorges regions

    同時，土壤是農業生產的根本，治理水土流失的關鍵是要保住土壤，而土壤養分絕大部分是隨著泥沙流失的，嚴重的水土流失造成土層淺簿、養分貧瘠，土地質量退化，產量下降，對三峽庫區移民工作和農業可持續發展造成嚴重威脅，制約三峽庫區經濟發展。因此進行三峽庫區坡耕地土壤侵蝕機理研究，探索減輕坡耕地土壤流失的方法措施，具有全局性的重大意義。
  2. According to its cause and characteristics of landuse, we can classify such area into two typical areas : area with soil and water erasion and area with land desert

    根據其成因和西部土地資源利用特點，可將西部土地生態脆弱區劃分為兩種類型：水土流失嚴重型生態環境脆弱區和土地沙漠化型生態環境脆弱區。
  3. The humankind is troubled seriously by a series of environmental problems, such as air pollution, ozonosphere destruction, glasshouse effect, acid rain, water pollution, land pollution and soil erosion and so on. all of these will stop our economy developing

    大氣污染、臭氧層破壞、溫室效應、酸雨頻繁、水污染、土地污染、水土流失、草原退化、森林急劇減少、珍稀動植物滅絕、沙漠急劇擴大等一系列環境問題嚴重困擾著人類，各種公害接二連三地侵襲人類，再這樣下去，經濟將變成無源之水、無本之木。
  4. And the major results and some new viewpoints were presented as follow : 1 ) sediment content of cn tillage system in runoff process is substantially low compared to st under rainfall with high intensity, showing cn bear the efficient capacity of control soil loss. nevertheless, when soil is saturated, the runoff intensity of both tillage systems is near, implicating cn has the limited function of reducing runoff. 2 ) based on the case analysis of observed all rainfall - runoff generation processes, a ) the initiation time hysteresis of surface runoff generation is notable when rainfall fall upon the unsaturated purple soils, which is attributed to the property of rapid water sorption and much non - capillary porosity

    經近幾年的觀測和理論分析，取得了以下結果和創新的認識： 1 ）在降雨強度較大的情況下，保護性耕作制? ?聚土免耕的產沙強度明顯較常規耕作制? ?順坡耕作的小，說明聚土免耕耕作制防治土壤流失是有效的；但當土壤達到飽和后，聚土免耕的徑流強度與常規耕作的差異較小，產沙強度也增大，因此，聚土免耕防治水土流失的能力是有限的。
  5. Moreover, hedgerow ecosystems were effective in controlling water and soil loss in june and august. under simulated rainfall, hemercoallis citrina baroni and p. rotation flligg hedgerow ecosystems had a significant effect on reducing water and soil loss in their later stages of plant growth, and there was a significant positive correlation between the effect on reducing water and soil loss and the rain intensities. moreover, hedgerow ecosystems decreased more soil loss than runoff, and the initial time of runoff incidences could well represent the water and soil conservation effects of hedgerow ecosystems

    Rotatumflligg ）植物籬笆生態系統年徑流量、年侵蝕量分別減少10 . 14 11 . 56倍和135 . 34 165 . 84倍；植物籬笆生態系統和大豆單作處理的徑流量、侵蝕量、可產生侵蝕的降雨量之間呈極顯著正相關，建立了相應的降雨產流、降雨產沙、徑流侵蝕模型，通過侵蝕雨量可以了解水土流失的發生特徵； 6月和8月份（多短時暴雨）水土保持能力較明顯。
  6. In the control, even light rain could bring soil and water losses. while for orchard and costarica henryi forest, runoff and sediment yield both reduced greatly. regarding to chinese fir and enclosing and tending forests with favorable vegetative coverage, minimum soil and water losses were produced even by the rainstorm

    裸露地（對照）小雨時也可能產生水土流失，而大雨以上降雨會產生嚴重水土流失；具有一定植被覆蓋且採取水土保持措施的果園和錐栗林的徑流量和泥沙量大幅度減少；而植被覆蓋良好的杉木林和封山育林地即使大雨以上降雨也僅產生極輕微的水土流失。
  7. A remote sensing and gis based dynamic soil erosion monitoring system in the major soil erosion areas in upper jialingjiang watershed

    長江上游重點水土流失區遙感動態監測及泥沙輸移分析
  8. In the comprehensive soil erosion control area in the loess plateau, a total of 15 million hectares of land have been treated - - 30 percent of the soil erosion area - - with over 300 million tons less silt flowing into the yellow river every year

    黃土高原水土流失綜合治理區已累計治理1500萬公頃，使30的水土流失面積得到不同程度的治理，年輸入黃河的泥沙減少3億噸以上。
  9. The forest cover will rise from 10. l percent to 27 percent in 30 years in the other three major control regions, namely soil erosion areas in the middle reaches of the yellow river, wind eroded areas on the loess plateau and areas along river sources in qinghai province

    用30年左右的時間，使黃河中游水土流失區、黃土高原風沙區、青海江河源頭三個重點治理區森林覆蓋率由目前的10 1提高到27以上。
  10. Gully erosion, which is universal on original lands, but also the special forms, for example, hole erosion gravel erosion debris slide and debris flow, which is unusual in loess area, ( 2 ) based on a long - term fixed point experiments in proving ground of the south stackpile, the soil erosion factors have been researched quantitatively, the runoff and erosion affected factors have been made sure and the experiential models of producing water and soil have been taken in newly - constructed stage, early stage and later stage of reclamation

    確定南排土場原地貌的水蝕模數為3700 4400t km ~ 2 ? a ；在排土場新造地貌上，擊濺、面蝕、細溝侵蝕、淺溝侵蝕、沉陷侵蝕、砂礫化面蝕、土砂瀉溜和坡面泥石流等水土流失形式出現頻率和發生程度都明顯強于原地貌。 （ 2 ）以南排土場徑流試驗場長期的定位觀測為基礎，對排土場未復墾時期、復墾初期、復墾後期的土壤水蝕影響因子進行定量研究，確定了徑流和土壤水蝕的主要影響因子及其臨界值，建立了產流產沙的經驗模型。
  11. Such problems as desertification 、 soil erosion 、 debris flow 、 landslide 、 garbage disposal 、 changes in ecological and geological environment 、 dispose of radioactive nuke rubbish 、 protection of famous historic and cultural sites are researched in this field

    研究課題涉及到：沙漠化、水土流失、泥石流、滑坡、垃圾填埋處理、生態和地質環境的變遷、放射性核廢料的處理和名勝古跡的保護等。
  12. 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。
  13. In terms of desertification prevention, water - soil erosion treatment, innovation of medium and lower - yield fields, the restoration and reconstruction of degenerate ecologic system, environmental pollution control, mariculture and marine medicine, they provide a batch of practical technology and mode

    在沙漠化防治、水土流失治理、中低產田改造、退化生態系統恢復與重建、環境污染控制等方面、海水養殖和海洋藥物等方面，提供了一批實用的技術和模式。
  14. That favorable water environment benefited, not only by the rather large percentage of forest cover with quite strong capacity of water conservation in mountain areas, but also by the comparatively lower gravity of soil erosion in the loess plateau in the middle and lower yellow river basin while numerous lakes and swamps still existed at that time and maintained a huge water storage

    中古華北之所以仍能保持良好的水環境，並非由於彼時降水遠比後代豐富，而是因為山區森林植被仍然良好，具有較強的水源涵蓄能力；黃土高原水土流失不甚嚴重，黃河決溢移徙較少、危害較輕，湖泊沼澤尚未因泥沙淤填而致大量消亡，可以瀦積巨量的水源。
  15. In order to control wind erosion, 5 measures are brought out that to increase artificial rainfall, to develop irrigated farming and to rise using rate of water resource, to control soil erosion, to optimize the frame of crops and solid expoiting, and to establish control and forecast system

    提出了防治沙化的5大措施，即增加人工降雨改造利用沙地、發展灌溉農業提高水資源利用率、治理水土流失、優化種植結構、立體開發、建立健全監測預報系統。
  16. The main result is as follows : 1. after erosion, the content of organic matter, total nitrogen and the available nitrogen in the sediment is more than that of soil sample. namely the enrichment phenomenon of organic matter, total nitrogen and the available nitrogen in slope cultivated land erosion soil is obvious

    黃?土受侵蝕后，泥沙樣中有機質、全氮和堿解氮的含量都高於雨前採集的坡地表層土樣，即黃?土坡耕地水土流失中有機質、全氮和堿解氮流失的「富集」現象明顯，而全磷和速效磷卻無明顯的「富集」現象。
  17. Yellow river region, because forest vegetation is destroyed by men, it causes serious soil erosion, land desertification, finally result in blocking in river course and floods, even may become a barren land

    都是因為森林植被受到人為的破壞，造成嚴重的水土流失土地沙漠化，最終導致河道淤塞河水泛濫，甚至成為不毛之地的。土地是人類生存的基地，土地沙漠化，是當今世界嚴重的環境問題。
  18. Some species have been largely spread for 18 years, and contributed much to the development of industrialization of agriculture, forestation and horticulture. 28 affiliated companies or cooperative bases have been established in the whole nation

    我國西部地區，水土流失土地沙化，洪澇乾旱災害頻繁，沙塵暴日益增多，這些都嚴重阻礙當地經濟發展和人民的物質生活水平的提高。
  19. In 1994, the ternpc got the only creative prize of agriculture science in the first ningxia patent exhibition, and the golden medal of the first agriculture science and technology achievement exhibition of china, held by the cstc chinese science and technique committee and shanxi province. in 1996, it was listed in the major plan of science and technique spreading by nstc

    總的來說，西部的生態環境特別是西北地方砍伐，水土流失，土地沙漠化的問題十分嚴重，由於生態環境惡化，造成湖泊乾涸，下遊河道斷流，土壤次生鹽化面積不斷擴大，沙塵暴頻繁增加，天然林場草場在面積退化，如果這些問題不能起到有效控制，環境的惡化很難逆轉，現有的綠州也很難利用。
  20. K mainly migrated with sediment in unsolvable forms, while slowly available k chiefly removed with soil. the amounts of total k, slowly available k, and rapidly available k loss have positive correlation to amount of soil loss

    黃綿土土壤鉀素主要以不溶態的形式隨泥沙遷移，全鉀、緩效鉀、速效鉀流失量與土壤流失量呈正相關關系；緩效鉀在水土流失過程中主要隨土流失。
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