Quantitative image analysis of earthworm-mediated soil displacement
Quantitative image analysis of earthworm-mediated soil displacement
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DOI：
10.1007/s00374-009-0392-9
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发表时间：
2009-09-01
影响因子：
6.5
通讯作者：
McKenzie, Blair M.
中科院分区：
文献类型：
--
作者：
Barnett, Christina M.;Bengough, Anthony G.;McKenzie, Blair M.
土壤被破坏和变形的方式是很难非破坏性地量化的。本文报道了两种无脊椎动物，长刺蚓Aporrectodea longa（Ude）和蚯蚓Lumbricus terrestris L.，比较了它们在挖洞时对周围土壤的影响。图像分析（粒子图像测速仪，PIV）被成功地用于量化的距离和方向的土壤颗粒位移的往复运动给一个独特的洞察他们对土壤结构发展的影响。从这两个物种使用PIV收集的数据显示，在土壤位移下降，在增加的距离，从蚯蚓的身体。被取代的土壤量是更多的两侧的蚯蚓（径向）比前面的prostomium（轴向）。此外，L。terrestris比A.轴向和径向都长。这项研究的结果表明，PIV图像分析是一个可行的工具，检查土壤位移的蚯蚓和所使用的方法有可能被应用到其他土壤生物。
The way soil is disrupted and deformed by earthworm movement is hard to quantify non-destructively. Two anecic earthworm species, Aporrectodea longa (Ude) and Lumbricus terrestris L., were compared in their effect on the soil around them as they burrow. Image analysis (particle image velocimetry, PIV) was used successfully to quantify the distance and direction of soil particle displacement by earthworm locomotion giving a unique insight into their effect on the soil structure development. The data collected from both species using PIV show a decline in soil displacement at increasing distance from the earthworm's body. The quantity of soil being displaced was more to the sides of the earthworms (radially) than in front of the prostomium (axially). Also, L. terrestris displaced more soil than A. longa both axially and radially. The findings from this study suggest that PIV image analysis is a viable tool for examining soil displacement by earthworms and the method used has the potential to be applied to other soil organisms.