Understanding of meteorological characteristics in mountains and mountainous fogs and their impacts of subalpine forests

认识山地、山雾的气象特征及其对亚高山森林的影响

• 批准号: 16208016
• 负责人: OHTA Takeshi
• 金额: $ 32.12万
• 依托单位: Nagoya University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (A)
• 财政年份: 2004
• 资助国家: 日本
• 起止时间: 2004 至 2007
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-16208016/
• 关键词: Mountain fog; surface meteorology; Water vapor budget; acid fog; forest ecosystem; 放射霧; 上昇霧; 蒸発散; 地表面状態; 空間分布; 水蒸気ソース; 高山帯; 安定同位体比; 局地風; 森林への結露; 霧水の化学組成; 山岳気象; 気温逓減率; 比湿低下; 長波放射低下

Meteorological conditions, chemical properties and stable isotope of atmospheric vapor were measures in Mt Norikura and Mt. Hachimantai to understand mountain fogs, e.g. radiation fog and amending fog, and its vapor source qualitatively The followings are new interpretations obtained from this project.Diurnal variation of meteorological variables, especially an elapse rate of air temperature, atomospheric vapor deficit and wind direction, were quite different in days when radiation fog and amending fog appeared from in non-foggy days. This result showed that appearance of mountain fogs required a strong local circulation It was shown from the stable isotope analyses that a part of ascending fogs consisted of water vapor which was stored in the bottom of a basin. Water vapor budget analyses showed that major sources of water vapor were the advection at a mouth of watershed and evapotranspiration from surface. And water vapor evaporated and/or transpired from the surface occupied about 5-70 % of total water vapor in the basin.Wetting duration of trees except for rainfall events reached to about 15 % of observation periods and condensation on trees occurred in early morning.Physiological properties were measured under a single or a coupled stresses from exposures of acid kg and atone, and drought Several changes of physiological properties are occurred and these phenomena will results from ozone exposure and drought stress rather than acid fogs.

为了了解山雾，例如乘鞍山和八幡平山，测量了气象条件、化学性质和大气水蒸气的稳定同位素。辐射雾和修正雾及其水汽来源的定性 以下是本项目得到的新的解释。气象变量的日变化，特别是气温历时率、大气水汽亏缺度和风向，在辐射雾发生的日子里有很大差异。修正雾气是从无雾天开始出现的。这一结果表明，山雾的出现需要较强的局地环流。稳定同位素分析表明，上升雾的一部分由水蒸气组成，储存在盆地底部。水汽收支分析表明，水汽的主要来源是流域口的平流和地表蒸散。从地表蒸发和/或蒸腾的水蒸气约占流域总水蒸气的5-70%。除降雨事件外树木湿润持续时间达到观测周期的15%左右，树木凝结发生在清晨。生理特性是在酸千克和无碱暴露以及干旱的单一或联合胁迫下测量的。生理特性发生了一些变化，这些现象是由臭氧暴露和干旱胁迫而不是酸雾引起的。

项目成果

Effects of chronic acid fog exposure with soil acidification or nitrogen loading on nutrient status in Abies firma seedlings.

慢性酸雾暴露与土壤酸化或氮负荷对冷杉幼苗营养状况的影响。

• 发表时间: 2005
• 期刊: Journal of Forest Research 10
• 作者: Yoshida;K.;Inaba;S.;Takenaka;C.
• 通讯作者: C.

Response of antioxidative enzymes of Abies firma seedlings under chronic acid fog exposure and/or drought treatment.

冷杉幼苗抗氧化酶在慢性酸雾暴露和/或干旱处理下的响应。

• 发表时间: 2005
• 期刊: Environmental Sciences 12
• 作者: Yoshida;K.;Takami;C.;Takenaka;C.;Tezuka;T.
• 通讯作者: T.

Water vapor transfer under radiation fog

辐射雾下的水蒸气传输

• 发表时间: 2005
• 作者: Mizuno;M.;Toba;T.;Ohta;T
• 通讯作者: T

Mountain fog and water vapor cycle in Kohachikawa watershed

小内川流域的山雾与水汽循环

• 发表时间: 2007
• 作者: Mizuno;M.;Ohta;T
• 通讯作者: T

Effects of complex stress of chronic acid fog exposure with rhizosphere aluminum on nutrient status in Abies firma seedlings.

根际铝长期酸雾暴露复合胁迫对冷杉幼苗营养状况的影响。

• 发表时间: 2005
• 期刊: Journal of Forest Research 10
• 作者: Yoshidam K.;Takenaka;C.;Tezuka T.
• 通讯作者: Tezuka T.