書誌事項
- タイトル別名
-
- Long Term Trend of Nitrogen Emission and Nitrogen Concentration of Groundwater in Miyako Island, Okinawa.
- ミヤコジマ ニ オケル チッソ フカ ハッセイリョウ ト チカスイ チッソ ノウド ノ チョウキテキ スイイ
この論文をさがす
抄録
Groundwater pollution by nitrogen is a common environmental problem in the islands covered with coral limestone. Total annual emission of nitrogen from fertilizers, livestock wastes, and domestic wastes at Miyako Island, Okinawa was examined from 1977 to 1998, and compared with the concentration of nitrogen in groundwater. The trend of nitrogen emission was reflected on the groundwater concentration with the delay of seven years. This suggests that the velocity of nitrogen permeating down to the groundwater is 3 m per year. The amount of nitrogen leaching into the groundwater was 39% of the total nitrogen emission on the ground. These results emphasize the importance of data collection on nitrogen emission in order to predict the future nitrogen concentration of groundwater in coral islands.
収録刊行物
-
- 水環境学会誌
-
水環境学会誌 24 (11), 733-738, 2001
公益社団法人 日本水環境学会
- Tweet
詳細情報 詳細情報について
-
- CRID
- 1390282680059281536
-
- NII論文ID
- 120006950130
- 10008005926
-
- NII書誌ID
- AN10372439
-
- ISSN
- 03872025
- 18813690
- 09168958
-
- COI
- 1:CAS:528:DC%2BD38Xps1GltA%3D%3D
-
- NDL書誌ID
- 5975807
-
- 本文言語コード
- ja
-
- データソース種別
-
- JaLC
- IRDB
- NDL
- Crossref
- CiNii Articles
-
- 抄録ライセンスフラグ
- 使用不可