sandy soil vegetation 中文意思是什麼

sandy soil vegetation 解釋
砂土植物群
  • sandy : adj （ ier; iest）1 沙的，沙質的，多沙的。2 沙狀的，（頭發等）沙色的。3 （感覺等）粗澀的。4 不穩...
  • 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...
  • vegetation : n. 1. 【植物；植物學】營養體生長，發育；〈集合詞〉植物，植被，植生，草木。2. 無所作為的生活，單調的生活。3. 【醫學】贅生物，增殖體。adj. -al
  1. British ) a tract of level wasteland ; uncultivated land with sandy soil and scrubby vegetation

    在英國，指一大片平坦的荒野；未開墾的覆蓋有草本植物和低矮灌木叢的沙地。
  2. According to the configuration and ecotope of the earths surface, the coverage of vegetation, occupation ratio of bare sandy land and the soil texture were selected as evaluation indexes by using the field investigation data

    利用外業調查數據，依據地表形態和生態狀況的變化，確定了植被蓋度、裸沙地佔地百分比和土壤質地3項評價指標，並建立了基於遙感的科爾沁沙質荒漠化評價指標體系，其中裸沙地佔地百分比用混合像元分解的方法獲得。
  3. Took sha - zhuyu and east shore of qing - hai lake as the examples and based on the mass of field survey and soil analyse, took comparative method, we carried through the researches on the causes of the desertification, the origin of sandy desertificational land substance, the development diversification and difference of soil characteristic in process of manual and spontaneous vegetation recovery in high frigid regions and make out the taxonomy of desertificational land in high frigid region of china. the result obtained are summarized as follows : 1. the development of the desertificational land in high frigid regions is caused by the manual and spontaneous factors

    論文首次對高寒地區的砂質荒漠化土壤進行系統研究，以沙珠玉和青海湖東岸為例，通過野外考察和土壤樣品室內化驗，採用對比分析的研究方法，對中國高寒地區荒漠化的成因和研究區砂質荒漠化土地的形成演變，土壤發生特性、人工植被恢復和自然植被恢復過程中土壤的發育差異和性質變化進行系統研究，並用系統分類體系對研究區土壤進行類型劃分，得到主要結論如下： 1 、高寒地區荒漠化的發生發展是在自然因素和人為因素共同作用下進行的，沙珠玉地區風沙土是就地產生的，青海湖東岸地區風沙土主要是由風從湖的西岸搬運而來的，兩地區砂質荒漠化發展仍然十分嚴重。
  4. The climax development group is isohumosols after sandy soil fixed under vegetation recovery condition in research regions. there was no different in soil type after 40 years developed. this manifested that soil formation and development process is very slow in high frigid regions

    6 、研究區土壤在植被恢復條件下，風沙土被固定以後，經過40多年的發育，類型未發生明顯分化，表明在高寒地區土壤的形成發育過程相當緩慢，土地一旦發生荒漠化，恢復治理相當困難，所以荒漠化防治要以預防為主。
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