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雷达探测分析广西丘陵坡耕地整地措施对土壤水分的影响

open access: yesShuitu Baochi Xuebao
目的整地是丘陵山区农业生产中的关键措施,明确整地后土壤属性的变化与田间土壤水分空间变异特征的响应关系,对于提升农业生产效益具有重要意义。方法以广西丘陵山区水平和反坡2种典型整地措施为研究对象,将野外雷达探测试验与室内土壤分析试验相结合,利用图像解析、统计分析等方法,深入探讨整地措施对坡耕地田间土壤水分变异特征的作用。结果在相同外部供水条件下,水平整地后的土壤水分空间变化显著发生在0~30 cm土层,反坡整地集中在20~40 cm土层,坡耕地贯穿整个0~50 cm土层 ...
倪晓庆   +6 more
doaj  

[VEXAS syndrome mimicking relapsing polychondritis: A case report]. [PDF]

open access: yesBeijing Da Xue Xue Bao Yi Xue Ban
Dong Q, He J, Jia Y, Yao H, Zhang X.
europepmc   +1 more source

[The CT image characteristics of anterior ethmoidal artery and its significance in nasal endoscopic surgery]. [PDF]

open access: yesLin Chuang Er Bi Yan Hou Tou Jing Wai Ke Za Zhi
Jiang Y   +4 more
europepmc   +1 more source

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