soil and water loss 中文意思是什麼

soil and water loss 解釋
水土流失
  • soil : n 1 泥土,土壤;土質。2 土地,國土。3 滋生地,溫床。4 農業生活,務農。n 1 臟東西,污物,污穢,污...
  • and : n. 1. 附加條件。2. 〈常 pl. 〉附加細節。
  • 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. Control soil and water loss and building ecologic changting

    治理水土流失建設生態長汀
  2. 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
  3. 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
  4. 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
  5. 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。
  6. 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。
  7. 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。
  8. 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。
  9. 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。
  10. 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。
  11. 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。
  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. 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。
  14. Soil and water loss and its prevention in beijing

    北京地區的水土流失及其防治
  15. Soil and water loss in beijing and its prevention

    北京地區的水土流失及其防治
  16. The degraded ecosystems include : > 25 dry land, mountain dry land, low density forest, grassland of low cover rate or moderate cover rate, all of which are the sources of soil and water loss. the low intensity of soil and water loss accounts for 55 % of the project area, the moderate for 23 %, and fierce for 12 %

    早地、山區早地、疏林地以及低、中覆蓋度草地,也是水土流失主要的策源地;其水土流失的強度也表現出微度侵蝕占項目區的55 % ,中度侵蝕佔23 % ,強度侵蝕佔12 % 。
  17. Analysis of soil and water loss and effects of control measure at zhuanyao gully small watershed

    磚窯溝流域水土流失控制措施及其效益分析
  18. Stressing the main points and implementation and quickening the steps of soil and water loss in upper and middle reaches of the yellow river

    突出重點抓好落實加快黃河上中游地區水土流失防治步伐
  19. The features of the red soil of the polang lake and its surround economic area are presented, the problems of red soil in exploitation are discussed, such as irrational use, soil and water loss, unreasonable distribution, single production, poor management, low forestry production level, lack of soil amelioration and low production

    摘要論述了鄱陽湖及周邊經濟區紅壤的基本特徵,討論了紅壤在開發利用中存在的主要問題:利用不合理,造成水土流失;布局不合理,生產單一化很突出;經營管理不善,林業生產水平很低;耕地缺乏培育,產量低而不穩。
  20. Function of warping dams in prevention and management of soil and water loss in the middle yellow river

    淤地壩在黃河中游水土流失防治中的作用
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