Delivery of Agricultural Chemicals to Surface and Groundwaters

向地表水和地下水输送农用化学品

• 批准号: 05453195
• 负责人: TASE Norio
• 金额: $ 2.3万
• 依托单位: University of Tsukuba
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for General Scientific Research (B)
• 财政年份: 1993
• 资助国家: 日本
• 起止时间: 1993 至 1994
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-05453195/
• 关键词: Agricultural chemicals; Nitrate; PCNB; TOX; Rainfall-runoff process; Flow path; Sugadaira; Wetland; 肥料; 農薬; 水質汚染; 降雨流出; 流出形態

Behaiviors of agricultural chemicals in a basin level have not been studied much. Especially, flow path of the chemicals through the basin to river should be studied intensively. In this study, behaviors of nitrate and PCNB in the Sugadaira Basin of Nagano Prefecture, especially during storm events, were studied. The results are summarized as follows :1. Nitrate and sulfate are dominant anions in groundwater of agricultural lands whose composition depends on its hydrologeologic conditions or oxdation-reduction conditions.2. Patterns of concentration changes of river water during storm discharge are classified into four, which reflect sources and flow path of the chemicals.3. During storms, chemical compositions of river water are unified from upstream to downstream and shown to be an agricultural type with high concentrations of nitrate and calcium, which shows that sources of chemicals are mainly from surrounded agricultural lands including ex-wetland.4. Concentrations of PCNB during storms show a different pattern from other chemicals such as nitrate and PCNB is supposed to be brought by suspended materials through surface runoff.

农用化学品在流域水平上的行为尚未得到很多研究。特别是对化学物质从盆地流向河流的路径应进行深入研究。本文研究了长野县Sugadaira盆地，特别是风暴期间硝酸盐和PCNB的变化规律。研究结果总结如下：1。硝酸盐和硫酸盐是农用地地下水中主要的阴离子，其组成取决于其水文地质条件或氧化还原条件。暴雨排放过程中河水浓度的变化模式分为四种，反映了化学物质的来源和流动路径。暴雨期间，河水的化学成分从上游到下游统一，呈现出硝酸盐和钙浓度较高的农业类型，这表明化学物质的来源主要来自周围的农业用地，包括前湿地。暴风雨期间PCNB的浓度与硝酸盐等其他化学物质的浓度模式不同，PCNB应该是由地表径流中的悬浮物质带来的。

项目成果

田瀬則雄: "長野県菅平における農業系物質の動態-農地の立地条件と水質組成-" 日本地理学会春季学術大会予稿集. 47. 408-409 (1995)

Norio Tase：“长野县菅平市农业物质的动态 - 农田的位置条件和水质组成”日本地理学会春季会议论文集 47. 408-409（1995）。

伏脇裕一ほか: "野菜栽培地における殺菌剤ペンタクロロニトロベンゼン及び分解代謝物質の動態" 衛生化学. 40. 39-48 (1994)

Yuichi Fushiwaki 等人：“蔬菜种植区杀菌剂五氯硝基苯及其代谢物的动态”，卫生化学，40. 39-48 (1994)。

田瀬 則雄: "長野県菅平における農業系物質の動態-農地の立地条件と水質組成-21GC01:日本地理学会春季学術大会予稿集" 47. 408-409 (1995)

田濑纪夫：“长野县菅平市的农业物质动态 - 农田位置条件和水质组成 - 21GC01：日本地理学会春季会议论文集” 47. 408-409 (1995)

Tase, N., Fushiwaki, Y., Kotoda, K., Suzuki, K., Yasuda, M., and Ohasi, M.: "Behaivior of Agricultural Chemicals in the Sugadaira Basin, Nagano Prefecture" Abstracts of 1995 Spring Meeting of the Associ.of Jap.Geogr.47. 408-409 (1995)

Tase, N.、Fushiwaki, Y.、Kotoda, K.、Suzuki, K.、Yasuda, M. 和 Ohasi, M.：“长野县菅平流域农用化学品的行为”1995 年春季会议摘要

Fushiwaki, Y., Tase, N., Kotoda, K., and Urano, K.: "Behavior of Fungicide Pentachloronitrobenzene and Intermediates in an Intensive Farming Area in Japan." Jpn.J.Toxicol.Environ.Health. 40-1. 39-48 (1994)

Fushiwaki, Y.、Tase, N.、Kotoda, K. 和 Urano, K.：“日本集约化农业区杀菌剂五氯硝基苯及其中间体的行为”。