2022 年公民参与的日本全国山区溪水化学调查:硝酸盐浓度与 2003 年调查的比较

IF 1.7 4区 环境科学与生态学 Q3 ECOLOGY
Soyoka Makino, Naoko Tokuchi, Daisuke Akaishi, Lina A. Koyama, Yukio Komai, Yoshimi Itaya, Nay Lin Maung, Kanae Ishimaru, Tomoki Oda, Rei Shibata, Shinya Numamoto
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引用次数: 0

摘要

山区溪水化学是森林状况的有效指标。2022 年,我们在日本开展了一项全国性的山区溪水化学调查,利用公民参与式采样。629 名经常接触山区和自然环境的人参与了这项调查。虽然我们的主要目标是在 2003 年研究的地点取样,但我们也欢迎从新的地点取样。我们总共从每个森林流域收集了 1414 份基流条件下的溪水样本。我们的研究重点是溪流硝酸盐(NO3-)浓度,这是人为氮负荷对森林影响的关键指标。我们比较了 2022 年与 2003 年相同采样点的 NO3- 浓度。在排除了上游有明显人为特征的 179 个采样点后,2022 年的平均 NO3- 浓度为 0.328 mg N L-1(n = 1236)。比较这两年 1088 个采样点的数据,2022 年的平均值(0.324 毫克 N L-1)明显低于 2003 年(0.359 毫克 N L-1,p <0.05)。值得注意的是,88.5%的采样点的差异在±0.25 mg N L-1以内。2022 年山区溪流 NO3- 浓度的空间分布模式与大城市、工业区或氮沉积源并不一致。这种独特的方法标志着日本首次在全国范围内开展参与式山涧水采集调查。我们通过通俗易懂的解释、手册和视频成功确保了样本质量,这证明了公民科学的潜力。然而,对科学准确性的定量评估仍然是即将面临的挑战。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Citizen‐participatory nationwide survey of mountain streamwater chemistry in Japan in 2022: Comparison of nitrate concentrations with the 2003 survey
Mountain streamwater chemistry is an effective indicator of forest condition. In 2022, we conducted a nationwide investigation of mountain streamwater chemistry in Japan, leveraging citizen‐participatory sampling. This approach involved 629 individuals with regular exposure to mountain and natural environments. Although our primary aim was to sample at locations from a 2003 study, we also welcomed samples from new sites. In total, 1414 streamwater samples were collected one time from each forested watershed at the baseflow condition. Our study focused on stream nitrate (NO3) concentration as a key indicator of anthropogenic nitrogen (N) loading impacts on forests. We compared NO3 concentrations in 2022 with those from 2003 at identical sampling points. After excluding 179 points with evident human‐created features upstream, the mean NO3 concentration in 2022 was 0.328 mg N L−1 (n = 1236). Comparing data from 1088 points sampled in both years, the mean value in 2022 (0.324 mg N L−1) was significantly lower than that in 2003 (0.359 mg N L−1, p < 0.05). Notably, 88.5% of sampling points showed differences within ±0.25 mg N L−1. The spatial distribution pattern of mountain stream NO3 concentrations in 2022 did not consistently align with large cities, industrial areas, or N deposition sources. This unique approach marked the first nationwide participatory survey for collecting mountain streamwater in Japan. Our success in ensuring sample quality through accessible explanations, manuals, and videos demonstrates the potential of citizen science. However, the quantitative evaluation of scientific accuracy remains a forthcoming challenge.
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来源期刊
Ecological Research
Ecological Research 环境科学-生态学
CiteScore
4.40
自引率
5.00%
发文量
87
审稿时长
5.6 months
期刊介绍: Ecological Research has been published in English by the Ecological Society of Japan since 1986. Ecological Research publishes original papers on all aspects of ecology, in both aquatic and terrestrial ecosystems.
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