農業環境技術研究所

最終更新日: 2013年8月21日

NIAESロゴ

8月の公開セミナー

農業環境技術研究所
セミナー開催記録

8月1日(木曜日) 第535回気象談話会

8月2日(金曜日) 第2回物質循環研究領域セミナー (Dr. Sean Case 特別セミナー)

8月29日(木曜日) 第536回気象談話会

第535回気象談話会

日時: 平成25年8月1日(木曜日)
13:30~
場所: 農環研本館4F、453会議室
※いつもの部屋とは異なります。

テーマ 講演者 連絡先
Weighted mean method for eddy covariance flux measurement KIM Wonsik 桑形
電話 838-8202
要旨

The study to monitor the exchange of energy, water vapor and carbon dioxide between the atmosphere and terrestrial ecosystem has been carried out with eddy covariance method throughout the world (http://fluxnet.ornl.gov). The monitored exchange quantity, named flux F, is conventionally determined by a mean of 1 hr or 30 min interval because no technique have been fortified to directly measure a momentary F itself at an instant of time. Therefore, the posterior analysis with this sampling should be paid attention to those spatial or temporal averaging and summation in the consideration of the sampling uncertainty. In particular, the averaging reckoned by arithmetic mean Fa might be in error because the sample F used in this averaging has nonidentical inherent quality within one another according to different micrometeorological conditions while those are observed under the same instruments. To overcome this issue, we propose the weighted mean Fw using a relative sampling error estimated by a sampling measurement and introduce Fw performance tested with 3 years EC measurements at tangerine orchard.

テーマ 講演者 連絡先
Environmental response of aquaporin expressions in the rice roots under natural weather conditions. KUWAGATA Tsuneo 桑形
電話 838-8202
要旨

Many of studies about the environmental response of gene expression of plants are made in laboratory conditions, but few studies have been done in outdoor field. Aquaporins, the water channel proteins, play crucial roles not only in regulation of plant water status, but also in uptake and transport of some kinds of minerals such as Silicon and Boron. Here we focused on the environmental response of aquaporin expressions in the rice roots under natural weather conditions. During June to August, rice seedlings were grown hydroponically under field condition, and the roots of the 16 day-old plants were collected every morning at 8:00 AM. The mRNA expression level of each aquaporin (AQP) member was quantified by real time PCR. Among various meteorological parameters, such as air temperature, solar radiation, wind speed, etc., the expression levels of the most AQPs positively correlated with air (or root) temperature (T or Tr) within 24 hours. The expression levels of several AQPs, root specific ones in particular, also highly correlated with the evaporative demand (potential evaporation, Ep) during morning hours. Finally we divided the 18 AQPs in the rice root into several groups according to the environmental response under natural weather conditions.

このページの先頭ヘ

第2回物質循環研究領域セミナー
Dr. Sean Case 特別セミナー

日時: 平成25年8月2日(金曜日)
16:00~17:15
場所: 農環研547号室
Dr. Sean Case (Centre for Ecology & Hydrology)によるセミナーを下記の通り開催します。どなたもご自由に参加ください。

テーマ 講演者 連絡先
Effect of biochar application on greenhouse gas emissions from a grassland in UK Dr. Sean Case
(Centre for Ecology & Hydrology)
吉川
電話 838-8326
要旨

バイオ炭は、土壌炭素蓄積技術として注目され、多くの研究がすすめられている。しかし、バイオ炭の施用が土壌からのN2O発生に影響を与える影響はほとんど調べられていない。本セミナーではイギリスの草地において、バイオ炭施用が温暖化ガス発生に与える影響に関する研究を紹介していただく。

このページの先頭ヘ

第536回気象談話会

日時: 平成25年8月29日(木曜日)
13:30~
場所: 農環研本館5F、547会議室

テーマ 講演者 連絡先
Long-term analysis of the heat and water balance over the Tibetan Plateau TAKIMOTO Takahiro 桑形
電話 838-8202
要旨

The Tibetan Plateau (TP) plays an important role in the global water cycle and is strongly influenced by climate change. In recent years, long-term observation shows that the TP has been experiencing rapid warming and wetting. However, there are few studies about heat and water balance associated with climate change.The objectives in this study are (1) to quantify heat and water balance by using meteorological station data and one-dimensional model and (2) to investigate these spatio-temporal characteristics.In the seminar, I will introduce the results of spatio-temporal analysis of the heat and water budget component over the TP.

テーマ 講演者 連絡先
Agro-meteorology Divison in the past 30 years MIYATA Akira 桑形
電話 838-8202
要旨

As one of the anniversary events, NIAES is going to publish its 30-years' history since its establishment in December 1983. I am now preparing a short review on the past 30 years of the Agro-meteorology Division by tracing succession of the studies. I would like to discuss the outline of the review with attendees. Presentation and discussion may be made in Japanese.

このページの先頭ヘ

7月の公開セミナー セミナーに関するお問合せは各セミナーの連絡先へ
直接お願いします
9月の公開セミナー
独立行政法人 農業環境技術研究所
305-8604 茨城県つくば市観音台 3-1-3
TXイラスト
研究所までの交通案内
広報情報室広報グループ(kouhou@niaes.affrc.go.jp