cropping intensity 中文意思是什麼
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By using the three - dimension acoustic doppler velocimeter to measure velocities of flow in an ecological river before and after arrangement of cropping loops, the velocity distribution, turbulence intensity and reynolds stress before and after arrangement of cropping loops are compared
摘要採用三維超聲波多普勒測速儀對河道生態修復中種植圈布設前後的工況量測，比較了布設種植圈前後的流速分佈、紊動強度和雷諾應力的變化。 -
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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