arid and semi-arid 中文意思是什麼

arid and semi-arid 解釋
乾旱半乾旱
  • arid : adj. 1. 乾旱的；貧瘠的，荒蕪的。2. 枯燥無味的。adv. -ly
  • and : n. 1. 附加條件。2. 〈常 pl. 〉附加細節。
  • semi : n. 1. 〈口語〉＝semitrailer. 2. 〈英俗〉半獨立式住宅。
  1. Mongolian wheatgrass is a long - lived perennial grass of the genus agropyron. it is well adapted to the cold, arid conditions of the great plains and its leaves are rich in nutrition, so it is wide ranged in arid and semi - arid area of north of china

    冰草屬于壽命較長的多年生叢生牧草，抗寒、耐旱性強，營養豐富，是我國北方乾旱和半乾旱地區改良天然牧草和人工草地的適宜草種。
  2. A review on the studies of bryophyte ecology in arid and semi - arid areas

    乾旱與半乾旱地區苔蘚植物生態學研究綜述
  3. Groundwater has very important eco - value in arid and semi - arid regions

    摘要乾旱半乾旱地區地下水具有重要的生態價值。
  4. Arid and semi - arid lands

    乾旱和半乾旱地區
  5. Study on the eco - environment index of groundwater in inland arid and semi - arid basins

    內陸乾旱半乾旱盆地地下水生態環境指標研究
  6. Studies on regulating function of forest hydrology and microclimate in arid and semi - arid area of west china

    乾旱半乾旱區山地森林的水分調節功能
  7. Located in an arid and semi - arid area, ningxia is one of the weakest ecological systems in china

    寧夏地處乾旱半乾旱地帶，是全國生態系統最脆弱的省區之一。
  8. Landscape structure adjustment and the sustainable utilization of water resources in arid and semi - arid region

    景觀結構調整和乾旱半乾旱區水資源的可持續利用
  9. A comparative analysis on sustainable utilization of water resources in arid and semi - arid regions of gansu province

    試論東北地區農業節水與農業水資源可持續利用
  10. Water - saved irrigation - an reasonable way to establishing artificial grassland in arid and semi - arid pastoral area

    發展節水灌溉是我國乾旱半乾旱草原區人工草地建設的必然舉措
  11. In the arid and semi - arid area, water resources have become the " bottleneck " of regional social economic development and ecological building

    在乾旱半乾旱地區，水資源已成為區域社會經濟發展和生態建設的「瓶頸」 。
  12. Climatic variation is a major factor of affecting the rate of desertification. the sustained period of water deficit is a direct cause of desertification in arid and semi - arid areas

    其中，氣候變化是控制沙漠化進退的首要因素，陸表水持續虧損則是導致乾旱、半乾旱地區土地沙漠化發展的直接原因。
  13. And climatic variation is a main factor affecting desertification. the sustained period of water deficit is a direct cause of desertification in arid and semi - arid areas. the tectonic activities of lithosphere control the distribution of desertification by constructing geomorphology

    提出了自然作用在土地荒漠化演化中佔主導地位，其中，氣候變化是控制土地荒漠化進退的首要因素，地表水持續虧損則是導致乾旱、半乾旱地區土地荒漠化發展的直接原因。
  14. Conservation tillage method is being adopted and extended gradually at the present time in northern arid and semi - arid regions of china as a effective method to solve those problems in crop production, like poor grain yield, limited utilization ratio of precipitation, serious soil erosion and low mechanization level

    針對我國北方旱農地區糧食產量低而不穩、土壤侵蝕日趨嚴重、機械化水平不高等普遍性問題，目前正逐步推行保土保墑的保護性耕作方法。
  15. In the arid and semi - arid region, matrix potential of soil water diversifys intensively in aeration zone, so there is good environment for zero flux potentials to develop

    結果表明：在干早和半乾旱地區，水土勢在包氣帶中變化強烈，具有良好的零通量面形成環境。
  16. There is a strong relationship between the vegetation cover and stability of oasis ecosystem which is the key location of mankind production and existence in arid and semi - arid land. the change of vegetation cover in arid and semi - arid has very important influence on the oasis eco - system, as it is very sensitive to the environment changes to oasis direction or to desert direction that the fluctuating index of vegetation cover. the vegetation cover rate change great effect on realizing the characteristic

    植被覆蓋度對于乾旱區人類生存和生產核心場所的綠洲穩定有著直接的關系，在乾旱區覆蓋度的變化對本已脆弱的綠洲生態系統有著重要的影響，是向綠洲化還是向荒漠化的方向發展，十分敏感於綠洲植被覆蓋度的指數，了解各類植被覆蓋度的特徵及演化規律，對認識乾旱區生態環境的現狀及發展趨勢，辨識引起環境變化的驅動力，有著重要的意義。
  17. In arid and semi - arid areas, the land salinisation has become very serious because the earth ' s surface evaporates strongly and highly - mineralized ground water rises above the critical depth

    在乾旱和半乾旱區，由於地表強烈的蒸發和高礦化度的地下水超過了臨界深度，土壤鹽漬化現象非常嚴重。
  18. In recent years, such problems as the extension and application of on - film irrigation, reclamation of salinized soils, and prevention of secondary salinization have made it important to study coupled movement of soil water, salt and heat transfer under plastic mulch in arid and semi - arid areas

    近年來覆膜灌溉的推廣應用、鹽堿地開發和改良以及土壤次生鹽堿化防治等問題使得研究西北乾旱-半乾旱地區覆膜條件下土壤水、鹽、熱耦合遷移規律成為重要課題。
  19. Taking changling county in south west songnen plain as an example, with the principles of regional agriculture sustainable development, ecological economics, feedback control theory and system dynamics, the article sets up the model of optimal adjustment for agricultural eco environment system in arid and semi - arid regions

    摘要以松嫩平原西南部的長嶺縣為例，依據區域農業可持續發展理論、生態經濟學、反饋控制理論和系統動力學原理，建立乾旱半乾旱區農業生態環境系統動力學模型。
  20. But guanzhong basin is arid and semi - arid climate zone. the water resources occupation of per person can not reach one sixth of the country

    然而，關中盆地屬乾旱半乾旱地區，人均水資源佔有量不到全國人均水平的六分之一。
分享友人
分享到 Line

分享到臉書