Terada Lab Research Topics 寺田研 研究テーマ
Kazumi Terada
Dep. Civil Engineering, Tokai University
1. The list of topics テーマリスト
a. Microplastics マイクロプラスチック
b. Ishigaki island 石垣島
c. Disaster reconstruction (the Great East Japan Earthquake in March 2011and Kumamoto earthquake in April 2016) 復興調査（東北、熊本）
d. Kaname river and Rice terrace in Kanagawa prefecture（金目川、棚田）
e. Others (at students’ request) その他（希望に応じて）
2. Topics in detail 詳細
a. Microplastics マイクロプラスチック
a-1. Shizunami coast in Shizuoka prefecture 静波海岸
l Measure the microplastics in surface soil in the coast line

海岸表土中の現存量を測定
l Seasonal difference 季節変化
l Difference between high and low tide line 満潮・干潮線の違い
l Assume the origin of plastics プラスチックの起源推定(B4 Oshio and B3 students)
a-2. Shiraho in Ishigaki island 白保＠石垣
l Assume the origin of plastics 起源推定
l Establish the method to assume the origin 起源推定法の確立(M1 Endo, B4 Oshio and B3 students)
a-3. Fukido mangrove river in Ishigaki island 吹通＠石垣l Measure the microplastics in surface soil in mangrove swamp マ
ングローブ湿地帯の表土中含有量l Distribution in mangrove swamp マングローブ湿地帯内での分布
l Age measurement of mangrove soil 土の年代測定
l Origin of plastics 起源推定
(M1 Endo and B3 students)
a-4. The method of measuring the origin of microplastics 起源推定法の確立

l Analyze familiar plastic materials (pet bottle, sponge, etc) andconfirm the method of assuming the origin of microplastics 身近なプラスチックを分析(M1 Endo and B3 students)l Check the repeatability 再現性の確認

b. Ishigaki 石垣島
b-1. GIS analysis

GIS 解析

l Compare the difference between before and after opening NewIshigaki Airport (March 2013)

新空港開港前後の比較

l Landuse, Population, Sightseeing population, Hotel andcommercial facility, the amount of garbage and waste water
treatment 土地利用、人口、観光人口、ごみ・下水処理量l Fequency of eco-tour in Fukido river エコツアーの頻度l Area of mangrove マングローブ面積l Economic outcomes research 経済効果
b-2. Material flux 物質循環l Already analyzed data before opening the new airport 開港前は既にデータあり
l After opening the new airport (March 2013) 開港後
l Material flux in the river mouth 河口でのフラックス²

Continuous data of current and turbidity in the rivermouth + SSC data -> Assume the SS flux to coastal area
流量、濁度の連続データ＋SSC データで沿岸域への SS 流
出量を推定²+ N, P data -> Nutrient flux 窒素とリンの流入出量²

Compare with data taken in before 2013l Turbidity comparison between sea and river (measured in 2016)
海、川の濁度比較²How much and when muddy water comes from themangrove river and reach the coastal area²

Time lag?

²

Link between sea and river! <- Our final target²

Current profile in the estuary. When and how SS

(turbidity) spread in the estuaryl Sediment analysis 底質分析²

Sediment sampling -> N, C, P amount²

Effect to water qualityl Input flux from upstream 上流からの流入量²

Comparison between before and after opening the newairport²

Difference between clear and rainy days²

Comparison with data taken in 2007?

l Underground water 地下水²

Concentration of nutrients change with tide?

²

Comparison with the water quality of river²

Assume the amount of elution to riverl Nutrient elution experiment of sediment 溶出実験²

Regarding with groundwater²

How much and when does groundwater (including N, P)
sink in²

Change with tide? I guess Yes, and it’s difficult tomeasure accurate amount of elutionl Simulation シミュレーション²

Diffusion of SS in the estuary. How much and when does
the outflux from mangrove river spread in the estuary?
Where do they sink (accumulate)?

²Relationship with the distribution of seagrass and coralreef²

Plane and vertical distribution of SS²Assuming the annual flux²+ mangrove forest dynamics? In the future…

b-3. Distribution of seagrass and coral reef サンゴ・海草の生息状況調査
l How much, where and what kind of seagrass and coral reef live in
the Fukido estuary?
l Seasonal difference?
l Change over the years?
l Monitoring of coral bleaching and recoveringl Web site construction and data releasel Relationship between current and SS profilel The method of measuring and considering the datab-4. Benthos and sediments ベントスと底質
l Benthos distribution and relationship with sediment character(C/N ratio, particle size)c. Disaster reconstruction (the Great East Japan Earthquake in March 2011
and Kumamoto earthquake in April 2016) 復興調査（東北、熊本）
l be involved in collaboration investigation with School ofInformation and Telecommunication Engineering 情報理工学部と共同研究
d. Kaname river and Rice terrace in Kanagawa prefecture（金目川、棚田）
l be involved in collaboration investigation with School of HumanEnvironmental Studies 教養学部と共同研究
e. Others (at students’ request) その他（希望に応じて）l Planktonl