An Analysis on Potential of Optical Soil Moisture Measurement Method Applied in Field

Ma Xiaoyi; Xiong Yunzhang; Sun Mingqin

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An Analysis on Potential of Optical Soil Moisture Measurement Method Applied in Field

- An Analysis on Potential of Optical Soil Moisture Measurement Method Applied in Field
- Bulletin of Soiland Water Conservation Vol. 14, Issue 3, Pages: 49-53(1995)
- 作者机构：
  
  西北农业大学
- 作者简介：
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- Published：1995
- 稿件说明：
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Ma Xiaoyi, Xiong Yunzhang, Sun Mingqin. An Analysis on Potential of Optical Soil Moisture Measurement Method Applied in Field[J]. Bulletin of Soiland Water Conservation, 1995, 14(3): 49-53.
DOI：

Ma Xiaoyi, Xiong Yunzhang, Sun Mingqin. An Analysis on Potential of Optical Soil Moisture Measurement Method Applied in Field[J]. Bulletin of Soiland Water Conservation, 1995, 14(3): 49-53. DOI：

摘要

光学测量法是土壤水分测量中一类重要方法，但是对其在田间土壤理化特性变异情况下的适应性还缺乏分析。该文以我国几种有代表性理化特性变异资料为依据，分析土壤颗粒的介电特性、折射率的变异，进而研究光学测量时土壤容重、化学成份、质地及其温度变化对测量的影响。研究得出：利用光学方法来测量土壤水分将强烈地受土壤理化特性变异的影响，田间应用的潜力不甚乐观。

Abstract

Optical method is a important method for soil moisture moisture measurement.Until now

theadaptability of the method to field soil is lack.In this paper

based on the variation data of field soilphysical and chemical characterstics

by analysing the variation of dielectric constant

refractive in-dex

the influnency of the soil bulk density and chemical composition

texture and temperature foroptical measurement method are struied;It was concluded that while soil bulk density and texturehave a rather effect upon optical mesaurement method

it is difficult to use the optical mesaurementmethod to determine soil moisture in the fields.

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Related Author

Mu Xingmin

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Related Institution

Northwesten lnstitute of Soil and water Conservation, Chinese Academy of Science and Ministry of water Resiurces, yangling

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