soil and water losses 中文意思是什麼

soil and water losses 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；...
  • losses : 敗場
  1. Therefore, it is the urgent need of land exploiture and environment repair that how to investigate the current situation of soil losses accurately, quickly and dynamically, how to predict & inspect soil losses, and provide scientific base for the repair of soil erosion and implement of soil and water conservation planning. otherwise, the survey method of soil losses is lagger in yunnan

    如何準確、快速、動態地查清水土流失現狀，進行水土流失預報和動態監測，為水土流失治理和水保規劃實施提供科學依據，是土地開發與環境整治的迫切需要，而雲南省在水土流失調查方法方面恰恰處于相對落後狀態。
  2. Abstract : the biological control effect on fruit tree insects and eco - economic benefit of interplanting mentha spicata with orchard was studied and analysed based on field polt experiment. the result shows : interplanting mentha spicata with orchard have obviously biological control effect on fruit tree insects like phyuoenistis eitrella stainton, papilio xuthus l, phyllocoptruta oleivora ashmead and myzus perieas sulzer ect, interphanting mentha spicata with slope orchard could reduce soil and water losses, and improve soil physical - chemistry property effectively, its also accelerate fruit tree growth and increase the yield of fruit tree, and has good economic benefit

    文摘:在野外小區試驗的基礎上，對果園套種留蘭香生物防治果樹蟲害的作用及其生態經濟效益進行了研究和分析，結果表明：果園套種留蘭香對潛葉蛾、柑橘鳳蝶和桃蚜等果樹害蟲有明顯的生物防治效果；在坡地果園套種留蘭香能有效減輕水土流失、改善土壤的理化性狀，促使果樹的生長和提高果樹的產量，並具有良好的經濟效益
  3. 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。
  4. 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。
  5. To the losses, the paper takes the rate of loss in grain as index ; to natural factor, the paper establishes mathematical model according to the change on meteorological factor in one year and between years ; to human factor, for its complexity, the paper takes two - grade index. beginning with the water conservancy index, plant structure index, ecology index, soil improvement and water - soil conservation index, policy index, adopting the way of weight, it combines them into human factor

    對于旱災災情，本文採用糧食損失率為指標；對于自然因素則主要根據氣象因子的年際和年內變化建立數學模型；對於人為因素，考慮到它的復雜性，採用二級指標，先從水利指標、種植結構易旱指標、生態指標、土壤改良水保指標和政策指標入手，再用權重法，將它們合成為人為因素。
  6. Laws of soil and water losses are bases to construct soil and water conservation forest, and are also the bases of management and development in mountainous areas

    摘要水土流失規律是配置水土保持林的依據，也是進行山區治理和開發的基礎。
  7. Based on abundant rainfall in minjiang river basin and frequent floods have brought great losses on agriculture production, national economy etc, the relationship between soil and water losses and rainfall characteristics was studied in four forest lands, viz

    本文針對閩江流域上游降雨豐富的特點，運用坡面徑流小區法研究了杉木林、封山育林、錐栗林、果園和裸露地（對照）的水土流失與天然降雨的關系。
  8. We systemically discussed the distribution of precipitation, dynamics of soil erosion in different land - use types, the relation between soil and water losses and some rainfall characteristics, such as rainfall amount, intensity, duration and prophase rainfall. further, rainfall erosion force was discussed and regression equations between soil and water losses and rainfall characteristics were founded

    較為系統的探討了閩江上游地區的降雨分佈特徵，不同土地利用方式的水土流失動態，不同土地利用方式水土流失與降雨量、降雨強度、降雨歷時、前期降雨等的關系，在此基礎上，初步探討了閩江上游的降雨侵蝕力，並建立了不同土地利用方式水土流失與降雨特性有關的回歸方程。
  9. Status and prevention measures of soil and water losses in agricultural development of mountain areas, yongchun county

    永春縣山地農業開發水土流失現狀與防治對策
  10. In order to father water and soil losses of southern red soil areas thoroughly, national general ministry of forest started experimental unit of biologic measures applying in soil and water conservation in chongdungou watershed in xinfeng county of jiangxi province

    摘要為了從根本上治理南方紅壤區的水土流失，國家林業總局在江西省信豐縣崇敦溝小流域開展了生物措施治理水土流失的試點。
  11. ( 6 ) great differences in soil and water losses in studied lands were observed on the base of the

    （ 6 ）相同雨強下不同土地利用方式的水土流失具有很大差異。
  12. Soil erosion and nutrient losses in jiangjiatang watershed in lanxi city in zhejiang province during exploitation was studied from 1993 - 2000 using adoptive research methods such as runoff plot, catchment area, and rare earth element tracer ( eu ), and the soil fertility index appraisal. the major conclusions are as follow : 1. the principle of water and soil losses together with nutrients and the forms in which they were lost were studied under different fanning systems in runoff plot

    本研究選擇浙江省中部金衢盆地邊緣蘭溪市水土保持監督站蔣家塘小流域為研究試驗點，以協作單位蘭溪市水土保持監督站小流域開發試驗區為基礎，採用坡面徑流小區法、單源匯水試驗區出口實測法、穩定性核素- eu土芯示蹤法研究了2000年坡耕地不同農作措施水土流失規律及養分流失規律和小流域綜合開發過程中水土流失規律及養分流失規律，並對小流域侵蝕土壤的肥力現狀進行評價。
  13. A preliminary study on laws of soil and water losses in gneiss, which is the main type of rocks in taihang, was carried out in this paper on the bases of examination data, survey of flood and historic statistic data

    根據試驗觀測數據和洪水災害考察結果，結合歷史統計資料，對河北太行山的主要類型巖石片麻巖低山區的水土流失特點進行了初步研究。
  14. Research on soil and water losses status and prevention solution in sand - blown area of lubei plain in hai river basin

    海河流域魯北平原風沙區水土流失現狀與防治對策研究
  15. Because people develop and use land in plunder way, land resources degenerate seriously, ecological environment are getting worse, and heavily threaten sustainable utilization for land resources. guizhou province covers the water shed of the upper reaches of changjiang and zhujiang rivers, serious soil and water losses heavily harm the sustainable development for the watershed of the lower reaches

    由於人們長期掠奪式的開發利用，土地資源退化嚴重，生態環境日益惡化，並對該省土地資源利用的可持續性構成巨大威脅；該省位於長江及珠江上游分水嶺地帶，其嚴重的水土流失對下游地區的可持續發展危害極大。
  16. The main reason of soil and water losses on the loess plateau was analyzed with considering the natural and man - made factors. in accordance with the real situation in our country, the author expounds the harm of soil and water losses, puts forward some measures, shows us a magnificent prospects on soil and water conservation

    從影響水土流失的自然因素和人為因素入手，分析了水土流失產生的主要原因，根據我國水土流失的情況，剖析了水土流失的危害，並提出了相應的措施，展望了水土保持的美好的前景，確保我國水土保持治理工作的順利進行。
  17. The proportions of soil and water losses caused by heavy rain ( or storm ) were 65 % ~ 75 % and > 80 % respectively. there was extremely significant positive correlation between rainfall and runoff amount, while not - significant correlation between rainfall and soil loss was found

    降雨量與徑流量的均呈極顯著線性相關，降雨量越大，徑流量越大;而降雨量與土壤流失量的相關性明顯小於降雨量與徑流量的相關性，影響土壤流失量的因素比徑流量復雜。
  18. ( 3 ) the seasonal change of soil and water losses was evident similar to rainfall

    （ 3 ）水土流失與降雨量一樣具有明顯的季節變化。
  19. Based on the background of biologic measures applying in soil and water conservation, with the help of the monitor of environment restoration, starting with society. economy and environment, to achieve dynamic monitor and regular update of information, providing quantitative data for the restoration of areas suffering from water and soil losses, and furthermore to stride forward the development of biologic measures applying in soil and water conservation and to construct the sustainable development of society, economy and environment

    以生物措施治理水土流失項目為背景，設計了生態修復監測系統，從生態、經濟和社會效益入手，實現動態監測和信息定期更新，為水土流失區生態修復工作的開展提供定量數據，從而進一步推動生物措施治理水土流失的發展，營建社會、經濟、環境的可持續發展。
  20. The monitoring hydro - data of 8 sections from fudedian to zhaoquanhe along the main stream of liaohe river are collected and analyzed. the nemero indexes for the water pollution of liaohe river are calculated and illustrated in diagrams. the results show that the principals of the spatial - temporal cod level changes in the main stream of liaohe river. also, two obvious characteristics of cod pollution are found out : the absolute cod level is very high in this river ; the ratio of cod bod is significantly higher than average. and the phenomena are explained in detail in this paper from multiple aspects such as industrial point pollution, soil and water losses, municipal sewage, agricultural water pollution and etc, based on the relationship analysis between cod, ss and water quality parameters

    對遼河幹流從福德店到趙圈河8個斷面的水質監測數據進行統計分析，計算得出遼河幹流水體污染的內梅羅指數，並以圖表形式揭示了遼河幹流cod時空變化的規律，總結出了遼河cod污染的兩個主要特點： 1 cod絕對值高2 cod bod相對比值也明顯偏高。通過對cod與ss cod與水質參數的相關性分析，從工業點源水土流失面源城市生活污水及農業用水等方面的污染解釋了上述特點。
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