書誌事項
- タイトル別名
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- Hydro-chemical cycle of forest ecosystem in the Norikura Highlands-1.Chemical characteristic and seasonal change of throughfall in forest ecosystem-
- ノリクラ コウゲン ノ シンリン セイタイケイ ニ オケル ブッシツ ジュンカン 1 リンナイ コウスイ ノ カガク トクセイ ト キセツ ヘンカ
- —1. Chemical characteristic and seasonal change of throughfall in forest ecosystem—
- ―1. 林内降水の化学特性と季節変化―
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Because of precipitation serves as a major vehicle of nutrient input into the forest ecosystem, the accurate measurement of its volume and ion concentration is of prime importance in an evaluation of any bio-geochemical cycle. Therefore, chemistry of the precipitation and throughfall of forest ecosystem was investigated in the Norikura Highlands. The investigation period was from January, 2003 to October, 2006. The throughfall volume in growing season and dormant season were 86 % and 93 % of the precipitation volume. Throughfall pH increased with increasing K+ concentration showed that H+ was held within the canopy by cation exchange reaction. And the concentration level of K+, Mg2+ and Ca2+ in the throughfall was much higher than that in the precipitation. It was the cause of canopy leaching. In growing season, proportions of canopy leaching of K+, Mg2+ and Ca2+ were 95 %, 70 % and 43 % of the throughfall deposition respectively. At Coniferous site, the flux of dry deposition was higher in dormant season than growing season. It is suggested that aerosol of the atmosphere and leaf area might be influenced.
収録刊行物
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- 日本水文科学会誌
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日本水文科学会誌 37 (3), 73-83, 2007
日本水文科学会
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詳細情報 詳細情報について
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- CRID
- 1390282679399966720
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- NII論文ID
- 10019318037
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- NII書誌ID
- AA11123427
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- ISSN
- 18837166
- 13429612
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- NDL書誌ID
- 8979119
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- 本文言語コード
- ja
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- データソース種別
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- JaLC
- NDL
- Crossref
- CiNii Articles
- KAKEN
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- 抄録ライセンスフラグ
- 使用不可