Nitrate concentrations during non-snowy season (2013-2023) in a small watershed on Mt. Irumukeppu, Hokkaido, Japan.
dataset
posted on 2025-03-13, 11:31 authored by Yu Nagasaka, Akiko NagasakaNitrate nitrogen concentrations (mg/L) in a small watershed at Mt. Irumukeppu, Hokkaido, where the retention forestry experiment was conducted. Values for each year are summarized by water year (July 1 of the current year to June 30 of the following year), and represent data collected and analyzed at approximately monthly intervals in the normal water level during the non-snowy season. Numbers represent watershed numbers. Six watersheds (No. 1, 2, 5, 8, 10, 11, and 15) where the treatments were implemented had different percentages of deciduous hardwoods retained when harvesting, and the percentages retained were in the order of No. 11>1>2>5>10>8. - denotes no sample.
Funding
三井物産株式会社
JP25252030
A large-scale experiment for retention forestry to develop ecologically sustainable forest management
Japan Society for the Promotion of Science
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Corresponding author email address
nagasaka-akiko@hro.or.jpTitle (in Japanese)
北海道イルムケップ山の小流域における非積雪期の硝酸態窒素濃度（2013～2023年）Description (in Japanese)
保持林業実証実験を実施した北海道イルムケップ山における小流域の硝酸態窒素濃度（mg/L）。各年の値は水年（当年の7月1日～翌年の6月30日）でまとめており，非積雪期の平水時，ほぼ月1回の間隔で採水分析したデータを示す。数字は流域番号を表す。施業を実施した流域はNo.1，2，5，8，10，11，15の6流域で，トドマツ植栽木を伐採した際に残した落葉広葉樹の保持割合がそれぞれ異なり，保持割合はNo.11>1>2>5>10>8の順に多い。-は採水・分析を実施しなかったことを示す。Manuscript title (in Japanese)
トドマツ人工林小流域における伐採後の保持木量が硝酸態窒素濃度に及ぼす影響Authors (in Japanese)
長坂 有, 長坂 晶子Copyright
© 2024 Yu NagasakaCommon Metadata Elements (Only for the items supported by Japanese public funds)
- This item includes dataset(s) related to publicly funded research (fill in all the fields below)
Funder
JSPSFunding Stream Code in Japan Grant Number
25252030Research Field
- Natural Science（自然科学一般）
Access rights
- Open（公開）
