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首页> 外文期刊>International journal of soil science >The use of porous ceramic cups for sampling soil pore water from the unsaturated zone.
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The use of porous ceramic cups for sampling soil pore water from the unsaturated zone.

机译：使用多孔陶瓷杯从非饱和区取样土壤孔隙水。

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Gaining knowledge of solute concentration and movement is one of the many keys to understanding the response of agricultural ecosystems to would-be pollutants. Monitoring the leaching of pollutants throughout the unsaturated zone is an important means of identifying the potential for groundwater contamination. Water solute monitoring and data collection, at present, can be obtained using either, in situ solute collection or via geophysical measurement. As data collated from the latter often requires support from knowledge gathered using in situ solute collection, this review evaluates the most common method for in situ solute extraction- the ceramic cup method. Ceramic cups are widely used for the extraction of soil pore water for monitoring of solute transport and concentration. This method offers the potential to simultaneously sample soil water at different depths in the soil profile to record the sequence of solute progress. The installation of the ceramic cup sampler into the soil profile is relatively easy when compared to other sampling techniques and causes only negligible disturbance of the soil, coupled with cost-effectiveness and the knowledge obtained makes them the most universally used technique for extracting soil water. However, the use of this system is not without problems. The spatial variability of the properties under investigation is often underestimated requiring clarification by replication. The matter of inherent bias in preferentially monitoring nutrient composition and flow of soil water in profile macropores is acknowledged and the associated possible alteration of the water sample. This study reviews the suitability of the ceramic cup as an experimental aid for the retrieval of soil solution samples for analysis and the issues associated with its use.
机译：了解溶质的浓度和运动知识是理解农业生态系统对可能的污染物的反应的许多关键之一。监测整个非饱和区污染物的浸出是确定潜在的地下水污染的重要手段。当前，水溶质监测和数据收集可以使用原位溶质收集或通过地球物理测量获得。由于从后者收集的数据通常需要使用原位溶质收集的知识的支持，因此，本篇评估评估了最常见的原位溶质提取方法-陶瓷杯法。陶瓷杯广泛用于提取土壤孔隙水，以监测溶质的迁移和浓度。该方法提供了同时对土壤剖面中不同深度的土壤水进行采样以记录溶质进展顺序的潜力。与其他采样技术相比，将陶瓷杯采样器安装到土壤剖面中相对容易，并且仅对土壤造成的干扰可忽略不计，再加上成本效益，并且所获得的知识使它们成为提取土壤水最普遍的技术。但是，使用该系统并非没有问题。人们常常低估了所研究属性的空间变异性，需要通过复制加以澄清。公认的是在优先监测剖面大孔中的养分组成和土壤水流量时存在固有偏差的问题，并且水样可能会发生变化。这项研究回顾了陶瓷杯作为实验辅助物的适用性，以检索土壤溶液样品进行分析以及与使用相关的问题。

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