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JoVE Journal
Environment
农业经营条件下土壤侵蚀和沉积与土壤碳酸盐浓度关系的测量与制图
农业经营条件下土壤侵蚀和沉积与土壤碳酸盐浓度关系的测量与制图
JoVE Journal
Environment
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JoVE Journal Environment
Measuring and Mapping Patterns of Soil Erosion and Deposition Related to Soil Carbonate Concentrations Under Agricultural Management

农业经营条件下土壤侵蚀和沉积与土壤碳酸盐浓度关系的测量与制图

Full Text
12,342 Views
08:09 min
September 12, 2017

DOI: 10.3791/56064-v

Robert H. Erskine1, Lucretia A. Sherrod1, Timothy R. Green1

1Water Management and System Research Unit, Center for Agricultural Resources Research,USDA Agricultural Research Service (ARS)

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Please note that some of the translations on this page are AI generated. Click here for the English version.

土壤侵蚀和沉积的空间模式可以从在适当时间增量映射的地面高程的差异中推断出来。这种海拔变化与近地表土壤碳酸盐的变化有关。本文描述了这些数量和数据分析方法的现场和实验室测量的可重复方法。

本研究的总体目标首先是提供一种在田间尺度上量化和描述土壤侵蚀和沉积空间模式的有效方法,其次,测试将这些模式与近地表土壤碳酸盐相关联的概念模型。这些方法使我们能够更好地了解表层土壤碳酸盐与地表侵蚀和沉积过程之间的相互关系。这些技术的主要优点是准确检测土壤表面高程随时间的变化,以及快速分析许多土壤样品中的土壤碳酸盐。

在更新数字高程图后,我们首先有了这项研究的想法。海拔差异图显示了明显的侵蚀和沉积模式,我们想看看这与碳酸盐浓度有什么关系。对于此协议,使用现场软件在整个勘测区域内每五分钟记录一次 RTK GPS 位置数据。

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