shelter belt 中文意思是什麼

shelter belt 解釋
防護帶
  • shelter : n 1 隱藏所；庇護者；避難所；躲避處；蔽身之處。2 保護；庇護；隱蔽；遮蔽；屏障。3 掩護物；遮蔽物；...
  • belt : n 1 帶，皮帶；綬帶；線條；帶狀物。2 【機械工程】傳動帶；【天文學】雲狀帶；【軍事】子彈帶；腰皮帶...
  1. Structure and microclimate effects of shelter - belt on farmland in ningxia

    寧夏地區農田防護林結構與小氣候效應
  2. The study tours covered reginas shelter belt research institute, the indian head research center, community pastures, saskatoon irrigation diversity research center, the agriculture research center at saskatchewan university, the swift current research station, lethbridges irrigation demonstration farms and research center, the alberta research institute, the elerslie research farm, the lacombe research stations, the western beef group, transaltas coal mine land reclamation project and some typical farms and pastures

    參觀考察了位於里賈納的防護林研究中心印第安海德研究中心社區牧場薩斯卡通灌溉多樣化研究中心薩斯喀徹溫大學內的聯邦農業部農業研究中心斯威夫特卡倫特研究站萊斯布里奇的灌溉示範農場萊斯布里奇研究中心阿爾伯塔省研究院elerslie研究農場拉康姆豬研究站和西部肉牛小組transalta煤礦復墾項目以及一些典型的農牧場。
  3. Build a shelter - belt plant a greenbelt north of beijing

    在北京以北建造護林帶
  4. Research on stump grafting regeneration of populus tomentosa in shelter - belt on farmland of desert oasis

    荒漠綠洲農田防護林伐根嫁接毛白楊更新技術
  5. Based on the comprehensive analysis of climate factor, biological feature and soil humility as well as the experimental data of aspen shelter belt for years, a calculation model for aspen shelter belt evapotranspiration in the tarim river basin was built and verified with the evapotranspiration data directly measured in aspen shelter belt

    摘要在綜合分析氣候、植物生物學特性和土壤濕度三方面因素的基礎上，利用多年的白楊農田防護林試驗資料，建立了塔里木河流域白楊農田防護林蒸散量的計算模式，並利用白楊林實際蒸散量的測量值，對模式進行了驗證。
  6. Shading effects of farmland shelter - belt and countermeasures

    農田防護林脅地效應及其解決對策
  7. The shelter belt halted the soil erosion

    防護林帶防止了水土流失。
  8. Stem sap flow of poplar of shelter - belt on farmland in xu - huai plain

    徐淮平原農田防護林帶楊樹樹干液流研究
  9. Designing research on ecological planning of farmland shelter belt in wind and desert area

    風沙區農田防護林帶生態規劃設計研究
  10. Outer shelter belt

    外緣防護林帶
  11. Shelter belt is on the east of the island, which is 15miles long and 1 - 3 miles wide, covering 50 thousand hectares. they are called “ the green great wall in nainan ”

    在島的東部有長15公里、寬1 3公里的防護林帶，足有5萬畝之多，它們被譽為「南海的綠色長城」 。
  12. Adopt the mean of analyzing the factors which influence the output of the crops to quantity and determine the factors, assess the correlation among the grading factors in the units and calculate the point value of these factors ; determine the weigh value of the factors. ten factors, which are content of organic matter, thickness of soil layer, quality of soil, pickled degree of land, condition of irrigation and state of shelter belt, the degree of land " s leveling, central focus region ( focus region location ), utilization method of soil, are chosen as grading index at last

    本文採用因素法定量化評價各地塊定級單元的相關性和權重性，最終選定了有機質含量、土層厚度、土壤質地、鹽堿化程度、排水能力、灌溉保證率、防護林完整度、條田平整度、中心區位，土地利用方式等因子作為定級的指標，使用了加權加和因素法進行了的定級計算，逐步完成了農用地質量情況的評價，劃分出了級別。
  13. A study of the microclimatic effect of the farmland shelter belt in lake areas of jianghan plain

    江漢平原湖區農田防護林小氣候效應研究
  14. The result revealed that the model had high precision and could be used to calculate the evapotranspiration in aspen shelter belt of the tarim river basin

    結果表明，該模式計算精度較高，可以作為計算塔里木河流域白楊農田防護林蒸散量的一種方法而使用。
  15. Preliminar y discussion on farmland shelter belt construction in hadatu farm in hulunbeie r league

    呼倫貝爾市哈達圖農場農田防護林建設淺析
  16. Impacts of shelter belt network for cultivated land on sustainable agriculture in mengcheng experimental area

    農田防護林體系對蒙城試區農業持續發展的作用
  17. The paper, on the basis of oasis concept and its ecological characteristics, introduces the theories and appraisal approaches of the main risks ( water resources risk and shelter belt risk from ecological risks ) and immigrant management risk and investment risk during the oasis agriculture development and community formation, which are analyzed from water resource sustainable risk ( water resources bearable analysis, water resource sustainable analysis, and ecological fragile analysis ) and ecological environment sustainable ( mainly shelter belt analysis ) and socio - economic sustainable development, providing a panorama of basic data for corresponding studies

    該文在介紹綠洲概念和生態特徵的基礎上，從水資源可持續性風險分析（分為水資源承載力評價、水資源可持續性評價和生態脆弱性評價三個部分） 、生態環境可持續性評價（主要是防護林評價）和社會經濟可持續性評價三個方面展開，介紹了綠洲農業綜合開發和社區建設中遇到的主要風險（生態風險中的水資源風險和防護林風險） 、移民管理風險及投資風險的理論和評價方法，為綠洲風險的評價研究提供了一個全面的基礎資料介紹。
  18. Present situation and benefit of farmland shelter - belt construction in jinzhong

    晉中農田防護林建設現狀及其效益評述
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