Results 101 to 110 of about 608 (143)

典型黑土区坡耕地水土保持措施适宜性分析

open access: yes
为了探讨东北典型黑土区坡耕地的治理情况,综合现有研究成果分析了不同坡度下顺坡垄作改横坡垄作、水平梯田、等高植物篱等措施的蓄水保土效益。结果表明:它们在黑土区能够发挥较高的水土保持效益坡度适宜范围,从而确定在0~5°、5°~8°、8°~15°坡度级别的坡耕地上分别采用以改垄措施、等高植物篱措施、水平梯田措施为主的措施进行治理,在>15 ...
王学强, 蔡强国, 陈雪
core  

崩塌地植生復育適用評估因子之分析研究 [PDF]

open access: yes, 2014
彭心燕   +3 more
core  

[Expert Consensus on the Clinical Practice of Child Life Services]. [PDF]

open access: yesSichuan Da Xue Xue Bao Yi Xue Ban
Nursing Group Of Chinese Pediatric Society Chinese Medical Association   +1 more
europepmc   +1 more source

[Research progress on brucellosis combined with liver injury]. [PDF]

open access: yesZhonghua Gan Zang Bing Za Zhi
Ibrahim D, Lu XB.
europepmc   +1 more source

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