秦陵百戏俑坑土遗址纵向水盐运移的模拟土柱实验研究

发布时间：2018-01-13 00:32

本文关键词：秦陵百戏俑坑土遗址纵向水盐运移的模拟土柱实验研究　出处：《文物保护与考古科学》2015年S1期 　论文类型：期刊论文

【摘要】：风化盐析是影响土遗址最为严重的病害之一。了解不同深度处土遗址可溶盐的含量以及变化规律可为土遗址的盐析病害提供理论依据和技术支撑。为此,本实验采用有机玻璃土柱装置和应用EM50传感器探头监测土柱不同深度处的含水率、电导率的变化规律,并结合实验室分析测定了不同时间土柱表面的含盐种类以及含盐量、不同深度处的含盐量等。结果表明,不同深度处土样的含水率越小电导率越大,且土壤表面的含水率最小,电导率最大;利用离子色谱法测定结果表明,除K+之外,Na~+,Mg~(2+),Ca~(2+),Cl-and SO_4~(2-)的含量随深度的变化趋势与含盐量随深度的变化趋势一致。本研究可为土遗址盐析病害的防治提供理论参考。
[Abstract]:Salt weathering is one of the most serious diseases affecting soil sites. To provide theoretical basis and technical support for salting out disease at different depth soil sites to investigate the content of soluble salts and the change rule of soil sites. Therefore, the water content at different depths of soil organic glass column device and application of EM50 sensor probe for monitoring soil column rate of variation of conductivity, and combined with laboratory analysis of salt species in different time were measured and the surface soil salinity at different depth salinity. The results showed that the water content at different depths of soil sample rate is higher the conductivity, soil moisture and surface conductivity maximum; minimum rate. The determination results by ion chromatography showed that except K+, Na~+, Mg~ (2+), Ca~ (2+), Cl-and SO_4~ (2-) trend of the content with depth and salinity with depth. The study can be used as a soil The prevention and control of the salting out disease of the site provides a theoretical reference.

【作者单位】：陕西师范大学;陶质彩绘文物保护国家文物局重点科研基地秦始皇帝陵博物院;西北农林科技大学资源环境学院;
【基金】：国家科技部支撑计划资助(2012BAK14B02)
【分类号】：K878
【正文快照】： 0引言土遗址是指以土作为主要建筑材料的人类历史上生产、生活等各种活动遗留下来的遗迹,是一种重要的文物资源[1]。导致土遗址破坏的地质及自然环境因素主要有两种,其一为内动力作用;二为外动力作用,主要有风、雨、温湿度变化、地下水和可溶盐的运移等。目前气候对土遗址的影

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