MEASUREMENT OF WATER AND NITRATE CONTENTS IN UNSATURATED SOIL USING TIME DOMAIN REFLECTOMETRY

• NOBORIO Kosuke

  岩手大学 農学部農林環境科学科

• SATTA Naoya

  岩手大学 農学部農林環境科学科

• KOGA Kiyoshi

  岩手大学 農学部農林環境科学科

• BABA Hidekazu

  岩手大学 農学部農林環境科学科

• MUKAIDA Yoshiaki

  岩手大学 農学部農林環境科学科

Bibliographic Information

Other Title

• TDR法を使った不飽和土壌中における水分・硝酸態窒素含量の測定
• TDRホウ オ ツカッタ フホウワ ドジョウ チュウ ニ オケル スイブン ショウサンタイ チッソ ガンリョウ ノ ソクテイ

Abstract

Although nitrate (NO₃^-) contamination of groundwater has been broadly detected, determinig NO₃^- pathways to the groundwater still remains a challenge. In unsaturated soil, where NO₃^- moves through, sitting over the groundwater table, soil water content always changes due to rainfall and evapotranspiration. Thus, it is speculated that behaviors of NO₃^- dissolved in soil water might be complex in unsaturated soil. Using time domain reflectometry (TDR) we in situ measured temporal changes in water and NO₃^- contents in Andisol applied with animal manure. On a rainfall event, water infiltrated into greater than 40 cm deep whereas NO₃^- just reached as deep as 10 cm from the soil surface.

Journal

• Doboku Gakkai Ronbunshu

  Doboku Gakkai Ronbunshu 2005 (783), 783_15-783_21, 2005

  Japan Society of Civil Engineers

Keywords

• soil water
• nitrate
• variably saturated soil
• time domain reflectometry (TDR)

Details

• CRID: 1390001205601749888
• NII Article ID: 10013814937
• NII Book ID: AN10014020
• DOI: 10.2208/jscej.2005.783_15
• ISSN: 18827187
• ISSN: 02897806
• NDL BIB ID: 7271605
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I7271605
• Web Site: https://www.jstage.jst.go.jp/article/jscej/2005/783/2005_783_783_15/_pdf
• Text Lang: ja
• Data Source:
  • JaLC
  • NDL
  • Crossref
  • CiNii Articles
  • KAKEN
• Abstract License Flag: Disallowed