Research for chemical reaction and transportation of chemical elements as a successive reaction system in forest ecosystem

森林生态系统连续反应体系化学反应及化学元素传输研究

• 批准号: 06806019
• 负责人: TAKENAKA Chisato
• 金额: $ 1.28万
• 依托单位: Nagoya University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for General Scientific Research (C)
• 财政年份: 1994
• 资助国家: 日本
• 起止时间: 1994 至 1995
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-06806019/
• 关键词: Nutrient Cycle; Through fall; Stem Flow; Dry deposition; Soil water; Leaching; Ion-Exchange; 季節変化; 取りこみ

Nutrient cycle in forest ecosystem would be affected by deposition of acidic materials. The purpose of this study were to consider the nutrient cycle system as a successive chemical reaction system through a flow process of rain water contacting with leaves, stem and soil, successively, and to evaluate the effect of acid materials. In this study, two experiments were performed by using HINOKI.The first was the continuous field observation to determine the effect of dry deposition on leaching process from leave surface. As the results, it was recognized that the behaviors of anions on leaf surface were affected by dry deposition and their penetration through leaf surface might be enhanced. The second experiment was a large-scale rain fall experiment using artificial rain water in HINOKI forest stand. pH of rain water were adjusted to 3.2 of 6.8. The concentration change of chemical elements in through fall, stem flow and soil water were pursued. As the results, it was found that potassium ion is leached from leaves and stem and calcium ion is uptake into leaves and stem. Sodium ion has little interaction with the surface of tree. On the other hand, the change in concentration of inorganic anions through leaves, stem and soil was not found. It is suggested that the existence of organic anions is important in the system.

酸性物质沉积会影响森林生态系统的养分循环。本研究的目的是将养分循环系统视为一个连续的化学反应系统，通过雨水依次接触树叶、茎和土壤的流动过程，并评估酸性材料的效果。本研究利用桧木进行了两个实验。第一个实验是连续现场观察，以确定干沉积对叶面浸出过程的影响。结果表明，叶片表面阴离子的行为受到干燥沉积的影响，并且它们通过叶片表面的渗透可能会增强。第二个实验是在桧木林中使用人工雨水进行的大规模降雨实验。雨水pH值调整为3.2至6.8。追踪了秋季、茎流和土壤水中化学元素的浓度变化。结果发现，钾离子从叶和茎中浸出，钙离子被叶和茎吸收。钠离子与树木表面的相互作用很小。另一方面，没有发现通过叶、茎和土壤的无机阴离子浓度的变化。这表明有机阴离子的存在在系统中很重要。

项目成果

Tanikawa T.and Takenaka C.: "Sulfate adsorption in various forest soils -Interference by organic matter-" Nippon Ringakukai Ronbunshu. 105. 415-416 (1994)

Tanikawa T.和 Takenaka C.：“各种森林土壤中的硫酸盐吸附-有机物的干扰-”Nippon Ringakukai Ronbunshu。

谷川東子・竹中千里: "森林土壌における硫酸イオンの吸着" 日本林学会中部支部論文集. 42. 125- (1994)

Toko Tanikawa 和 Chisato Takenaka：“森林土壤中硫酸根离子的吸附”日本林业学会中部分会会议记录 42. 125- (1994)。

Tanikawa T.and Takenaka C.: "Adsorption of sulfate ions on forest soils." Nippon Ringakukai Chubu-sibu Ronbunshu. 42. 125 (1994)

Tanikawa T. 和 Takenaka C.：“森林土壤上硫酸根离子的吸附”。

谷川東子・竹中千里: "異なる森林土壌中における硫酸イオンの吸着-有機物による吸着阻害-" 日本林学会論文集. 105. 415-416 (1994)

Toko Tanikawa 和 Chisato Takenaka：“硫酸根离子在不同森林土壤中的吸附 - 有机物对吸附的抑制”，日本林业学会汇刊 105. 415-416 (1994)。