contour cropping 中文意思是什麼

contour cropping 解釋
等高栽種
  • contour : n 1 外形,輪廓;周線,輪廓線。2 等高線,恆值線;【電視】等場強線(=contour line)。3 概略,大要...
  • cropping : 裁邊
  1. The paper analyzes the effect of three cultivation measures of contour cropping, manual excavation and manual hoeing to the reduction of run - off energy and erosion based on office artificial rainfall testing

    摘要在室內人工降雨試驗的基礎上,分析了等高耕作、人工掏挖和人工鋤耕3項耕作措施對徑流能量的削減作用和減蝕作用。
  2. The outcomes show that cultivation measures have the reduction functions of run - off energy and slope sediment production, of which, the action of contour cropping is the maximum and the action is reduced along with the increase of rainfall intensity and surface gradient ; cultivation measures also have a certain correlation on the reduction functions of run - off energy and erosion, in the meanwhile of slope sediment production, it is effected by the factors of soil erosion resistance and scouring resistance

    結果表明:耕作措施對徑流能量及坡面產沙均具有削減作用,其中等高耕作的作用最大,隨雨強和地面坡度的增大其作用減弱;耕作措施對徑流能量的削減作用與減蝕作用之間具有一定的相關關系,但坡面產沙同時受土壤抗蝕、抗沖性等因素的影響。
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