自由含水層 的英文怎麼說

中文拼音 [yóuhánshuǐcéng]
自由含水層 英文
free aquifer
  • : Ⅰ代詞(自己) self; oneself; one s own Ⅱ副詞(自然;當然) certainly; of course; naturally; willin...
  • : causereason
  • : 動詞1 (東西放在嘴裏 不咽下也不吐出) keep in the mouth 2 (藏在裏面; 包含) contain 3 (帶有某種...
  • : 名詞1 (由兩個氫原子和一個氧原子結合而成的液體) water 2 (河流) river 3 (指江、河、湖、海、洋...
  • : i 量詞1 (用於重疊、積累的東西 如樓層、階層、地層) storey; tier; stratum 2 (用於可以分項分步的...
  • 自由 : freedomliberty
  1. Meanwhile, most aspects about this perspective are concerned, which include quantification of the soil water background of the plateau area, the regional spatial variation of soil water background and variation along the slope, mosaic structure and seasonal changes etc. the results show that : ( 1 ) for the fundamental circumstance for vegetation development is the original debilitated slope, so the perspective of soil water background specially for the loess plateau refers to the soil water conditions on the original slope. ( 2 ) the value of soil water background appears to be a descending trend from south to north based on the difference of vegetation zones. in the forest zone, soil moisture contents beneath 3m depth from the soil surface are more than 12 % usually ; in the forest - pasture zone, the values of soil moisture content beneath 4m depth underground are more than 6 % and stable, and tend to be ascending while the depth increases ; but the values in the dry pasture zone is lingering between 4 % to 6 % from the surface layer to sub - layers

    發展了「土壤分背景」的概念,並以之為基礎對其各個方面進行了研究,使之形成一個相對獨立和完整的體系,主要包括黃土高原土壤分的背景值、土壤分背景的區域分異、坡面分異、鑲嵌結構及其季節分異等: ( 1 )於植被生長發展、演替的基礎階段是天然草被群落,故認為黃土高原的土壤分背景在概念上是特指該區天然草被群落下的土壤分狀況; ( 2 )黃土高原的土壤分背景值,根據植被地帶的不同表現出南向北逐漸降低的規律:森林地帶3米以下土分背景值普遍穩定地高於12 ,森林草原地帶4米以下土分背景值穩定大於6 ,且均隨土的加深量逐漸增加,而草原帶的土壤分背景值土表至底土一直在4 6之間徘徊。
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