| 摘要: |
| 土壤水分含量直接影响作物的生长及土壤的机械性能，在农业、工程、生态等方面具有重要
的研究意义。基于近红外反射光谱特性的土壤水分的快速测量研究对作物栽培、农田灌溉、生态环境等
具有重要作用。文章分析了近红外光谱土壤水分测量方法的特点，概述了其测量原理与方法。通过搜集
国内外学者的研究结果，对主要仪器的研究进行总结分析，结果表明近红外反射光谱测量土壤水分含量
方法由研究逐步向商用化发展，测量装置小型化，测量精度不断提高；此外，该测量方法不需要与土壤
接触，不破坏土壤结构，测量精度高，可快速测量土壤水分含量，能够满足科学研究和生产活动的需求。 |
| 关键词: 土壤水分 近红外 光谱 反射 |
| DOI： |
| 分类号: |
| 基金项目:中国水科院基本科研业务费项目（SE0145C212018); 中国科协青年人才托举工程项目（2017-2019） |
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| Review of the Measurement Method and Advanced Instrument for Soil Moisture Detection with NIR Spectroscopy |
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YIN Zhe, SHAN ZHI JIE, YU YANG, QIN WEI, GUO QIANKUN, LI BAI
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State Key Laboratory of Simulation and Regulation of Water Cycle in River Basin,China Institute of Water Resources and Hydropower Research
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| Abstract: |
| Soil water content directly affects crop growth and soil mechanical properties, and has
significance in such researches as agriculture, engineering, and ecology. Rapid measurement of soil water content
based on near-infrared reflectance spectral characteristics is of great importance in such studies and applications
as crop production, irrigation and ecological environments. This paper introduce the measuring principle and
analyzes the characteristic of soil water measurement by using near-infrared spectroscopy method. Research on
sensing technology and measuring devices is summarized and analyzed through the collection of domestic and
foreign scholars’ research results. Soil water content measurement by using near-infrared reflectance spectroscopy
gradually moving towards commercialization that measuring device is miniaturized and the measurement result
has high accuracy. Besides, this near-infrared reflectance spectroscopy method does not need to touch the soil to
destroy the soil structure and can obtain the measurement results quickly, which can meet the needs of scientific
research and production activities. |
| Key words: soil moisture Near-infrared spectroscopy reflectance * |
