loess soil 中文意思是什麼

loess soil 解釋
黃土性土壤
  • loess : n. 【地質學；地理學】黃土。-al, -ial, -ic adj.
  • 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...
  1. Root of aggravation of loss of soil and water of loess plateau

    明代的軍屯與九邊屯墾所導致的土地演替
  2. Effects of ctmab on adsorption of chlorobenzene onto loess soil

    對黃土吸附氯苯的影響研究
  3. Soil caco3 eluviation and deposition process is the most important development and evolution process of soil, from parent material to mature soil in the loess plateau, arid and semiarid area

    土壤碳酸鈣（ caco _ 3 ）的淋溶淀積過程是黃土高原以及乾旱和半乾旱地區土壤形成發育的主要過程之一，也是地球化學過程的主要內容。
  4. Caco3 not only affects soil physical and chemical characteristics but also causes co2 change in the air, because caco3 is main components among the total pool of inorganic carbon of soil. this paper systematically summarized and analyzed general development characteristics of soil profile caco3 in loess hill gully area including source, content, forming - condition, distribution and illuviation - depth of caco3, which will have the most important significance for the further studies on global soil and climate change

    碳酸鈣在土壤剖面中淀積的深度和類型是黃土高原土壤發育的重要標志，鈣積層是黃土高原土壤發育環境的歷史信息庫，同時土壤碳酸鈣作為土壤無機碳庫重要組成，它通過溶蝕后再結晶與大氣co _ 2之間進行物質交流來影響全球氣候變化。
  5. Indicatory function of soil moisture of undergrowth vegetations in the robinia pseudoacacia forests with different densities in semi - arid region on the loess plateaus

    林下植被對半乾旱區不同密度刺槐林地土壤水分環境的指示作用
  6. There the soil is from weathered limestone soil or loess.

    那裡的土壤是經過風化作用的石灰石土壤或黃土。
  7. Soil erosion process research of the loess bare slope

    黃土裸坡土壤侵蝕過程研究
  8. The holocene loess - soil sequence in the loess plateau constitutes an excellent record of evolution of soil formation, monsoonal climate, aeolian dust accumulation and influences of arable farming of over 8000 years

    長期農牧業的發展，使得天然植被在大多數地方已蕩然無存，大片的林地被開墾為農田或被開辟為城市用地。
  9. Responses of soil water and fertility to the alfalfa crop rotation in semiarid loess area of china

    半乾旱區不同作物與苜蓿輪作對土壤水分恢復與肥力消耗的影響
  10. Study on characteristics of soil moisture and its use efficiency in dryland wheat in the loess tableland

    黃土臺塬旱地小麥土壤水分特徵及水分利用效率研究
  11. The empirical equation w = asb was used to fit water holding capacity of four kinds of agricultural soils in loess plateau. soil water holding capacity and unavailable water content increased as soil texture became clayed. available water content in loam was higher than those in sandy soil and clayed soil

    黃土高原四種主要農業土壤的水分特徵曲線並無明顯的平臺或拐點產生，其關系能夠很好地用garden經驗方程（ w = as ~ （ - b ） ）進行擬合。
  12. The research of soil degradation in pur country is mainly concentrated on the red earth hilly area in the south in the past, and is less on the loess plateau that is one of the most fragile areas. based on field experiment and laboratory analysis, discuses the degradation mechanism, and raises the methods of refreshing and reestablishing land productivity of huangshan soil in chunhua county of shaanxi. in the hope of serving development of western regions and ecological environment construction that concede the land to forestry ( the grass )

    我國以前對土壤退化問題的研究主要集中於南方紅壤丘陵區，對生態環境最脆弱的黃土高原地區的土壤退化研究相對較少，故本文以黃土高原地區陜西淳化縣的侵蝕性黃?土為對象，通過野外人工模擬降雨試驗和室內分析相結合的方法，探討了侵蝕性黃?土的退化機理，提出了恢復和重建黃?土土地生產力的途徑和方法，以期服務于西部大開發和退耕還林（草）的生態環境建設。
  13. ( 2 ) there is stage of soil formation from the evolution of pedogenic environment in the weihe valley during holocene. soil formation shows the law of evolving from warm and wet strong soil formation period to cold and dry dust deposition period ( weak soil formation period ) and to warm and wet strong soil formation period again. the loess - soil sequence is a compound soil sectional system of different kinds of soil evolution under different bio - environment and pedogenic processes

    （ 2 ）通過對全新世渭河流域成壤環境演變問題的討論，揭示了全新世渭河流域土壤的發育具有階段性，表現為由溫濕的強成壤期向冷乾的沉積期（弱成壤期）演變、再向溫濕的強成壤期演變的規律；黃土一古土壤序列是不同生物氣候環境下、不同成壤過程發育的不同土壤類型演替而形成的復合型土壤剖面體系；而且由於冬夏季風環流及其環境效應在空間上的差異，使得復合型土壤剖面體系也存在著南北差異。
  14. Nitrogen loss of loess soil as affected by nh4no3 applying in process of water erosion

    水蝕條件下硝酸銨施用對黃綿土氮素流失的影響
  15. Effects of long - term application of organic manure and chemical fertilizers on main fertilities in loess soil

    肥料中氮磷和有機質對土壤重金屬的影響及治污中的應用
  16. Taking the unsarurated loess soil sample, the water content distribution of the soil with various density and moisture content is tested in various thermal gradients

    分別對不同溫度梯度、不同密實度、不同初始含水量的土樣進行試驗，測定了各個土樣中含水量的分佈。
  17. Analyzing their parameter, the paper establish calculating mould for unsaturated stacked loess soil. this mathematic mould simultaneously include force, settlement and time

    對雙曲線和s lnt的參數進行分析，首次建立了非飽和黃土填土的同時考慮力、變形和時間的計算模型。
  18. The reinforcing technique to rise to replace is a kind of good way for treatment building slant angle and recovering building originally true height, and it is less applied for high building correction to replace in loess soil

    頂升糾偏加固技術是處理建築物傾斜和恢復建築物原來標高的一種好方法，其在自重濕陷性黃土場地的多、高層建築糾偏工程中還應用較少。
  19. This paper introduces the definition of initial collapse pressure of loess soil, discusses the application of initial collapse pressure in loess engineering, pointing out that the index of initial collapse pressure applied in loess engineering must be determined strictly

    介紹了黃土濕陷起始壓力的定義，論述了濕陷起始壓力在黃土工程中的應用，指出在黃土工程應用中，必須嚴格確定濕陷起始壓力指標。
  20. Abstract : this paper introduces the definition of initial collapse pressure of loess soil, discusses the application of initial collapse pressure in loess engineering, pointing out that the index of initial collapse pressure applied in loess engineering must be determined strictly

    文摘:介紹了黃土濕陷起始壓力的定義，論述了濕陷起始壓力在黃土工程中的應用，指出在黃土工程應用中，必須嚴格確定濕陷起始壓力指標。
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